Philippe Tondeur

Profile picture for Philippe Tondeur

Contact Information

Professor Emeritus
Department of Mathematics
273 Altgeld Hall, MC-382
1409 W.Green Street
Urbana, IL 61801
tondeur@illinois.edu

Research Areas

Geometry and Topology
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Biography

Philippe Tondeur is a research mathematician and educator, and a consultant on mathematics, science and technology policy. His current interests include mathematics research and education; the role of mathematics in science and society; innovation and science policy; institutional governance; and leadership development.

He retired a few years ago as Director of the Division of Mathematical Sciences at the National Science Foundation (NSF). Previously, he served as Chair of the Department of Mathematics at the University of Illinois in Urbana-Champaign (UIUC).

He earned an Engineering degree in Zurich, and a Ph.D. degree in Mathematics from the University of Zurich. He subsequently was a Research Fellow and Lecturer at the University of Paris, at Harvard University, the University of California at Berkeley, an Associate Professor at Wesleyan University, before joining the UIUC faculty in 1968, where he became a Full Professor in 1970.

He published approximately 100 articles and monographs, mainly on his research in differential geometry and topology, in particular the geometry of foliations and geometric applications of partial differential equations. His bibliography lists nine books. He was continually supported by grants from the NSF from 1967 to 1990. He served as Editor and then as Managing Editor of the Illinois Journal of Mathematics, and edited the collected works of K.T. Chen. He served on numerous committees at universities and professional societies.

Philippe Tondeur has been a Visiting Professor at the Universities of Buenos Aires, Auckland (New Zealand), Heidelberg, Rome, Santiago de Compostela, Leuven (Belgium), as well as at the Eidgenoessische Technische Hochschule in Zurich, the Ecole Polytechnique in Paris, the Max Planck Institute for Mathematics in Bonn, Keio University in Tokyo, Tohoku University in Sendai, and Hokkaido University in Sapporo. He has given approximately 200 invited lectures at various institutions around the world.

Philippe Tondeur has been an Invited Hour Speaker of the American Mathematical Society (AMS) in 1976, a recipient of a 1985 Award for Study in a Second Discipline (Physics) at UIUC, the 1994 William F. Prokasy Award for Excellence in Undergraduate Teaching at UIUC, a 2002 Frederick A. Howes Commendation for Public Service from the Society of Industrial and Applied Mathematics (SIAM), and the 2008 SIAM Prize for Distinguished Service to the Profession. In 2009 he was selected in the inaugural class of Fellows of SIAM. In 2010 he was selected a Fellow for the American Association for the Advancement of Science (AAAS). In 2012 he was elected in the first class of Fellows of the AMS.

Since his retirement from NSF Philippe Tondeur chaired the Board of Governors of the Institute for Mathematics and its Applications at the University of Minneapolis, and served on the National Advisory Council of the Statistical and Applied Mathematical Sciences Institute at the Research Triangle Park in Raleigh, North Carolina. He also served as a member of the National Committee on Mathematics of the U.S. National Research Council, and as a US Delegate to the General Assembly and International Congress of Mathematician in 2006. He further served as a Trustee of the Instituto Madrileno de Estudios Avanzadas-Math (IMDEA-Math) in Madrid, on the Scientific Advisory Board of the Canadian Mathematics of Information Technology and Complex Systems Centre of Excellence, on the Scientific Advisory Board of the Mathematics of Climate Research Network (MCRN), and as the Delegate for the Mathematics Section to the Council of the AAAS.

He served on the Science Policy Committee and other Committees of the Mathematical Association of America (MAA) and of the American Mathematical Society (AMS), as well as the Joint Policy Board of the Mathematical Sciences in the US. His service on the Committee on Science Policy of SIAM for over a decade proved to be particularly fruitful.

Research Interests

Differential geometry, foliation theory, gauge theory, moduli spaces, low dimensional geometry and topology, topological quantum field theory.

PhD Students

  • Pyng Wang, Decomposition theorems of Riemannian manifolds, 1973.
  • Thomas Duchamp, Characteristic invariants of G-foliations, 1976.
  • Michael Hvidsten, Volume and energy stability for immersions, 1985.
  • Paul Scofield, Symplectic and complex foliations, 1990.
  • Hobum Kim, Geometric and dynamical properties of Riemannian foliations, 1990.
  • Louis Kerofsky, Harmonic forms under metric and topological perturbations, 1995.
  • Alan Mason, An application of stochastic flows to Riemannian foliations, 1997.
  • Amine Fawaz, Transversely holomorphic flows on 3-manifolds and geodesible vector fields, 1998.

Publications

[1] Zur Theorie der kanonischen Transformationen, with H. H. Keller, Rend. Circ. Mat. Palermo Serie II 10(1961), 262-282.
[2] Affine Zusammenhänge auf Mannigfaltigkeiten mit fastsymplektischer Struktur, Comment. Math. Helv. 36(1962), 234-244.
[3] Structure presque kählerienne naturelle sur le fibré des vecteurs covariants d'une variété riemannienne, C. R. Acad. Sci. Paris 254(1962), 407-408.
[4] Zur Frage der Ueberdeckbarkeit einer Lieschen Gruppe durch ihre einparametrigen Untergruppen, Math. Ann. 147(1962), 373-377.
[5] Bemerkungen zur Frage der Metrisierbarkeit einer linearen Uebertragung, Soc. Sc. Fenn. Comm. Phys. Math. 27, 7(1962).
[6] Fast-komplexe Strukturen auf einer Lieschen Gruppe, Comment. Math. Helv. 38(1963), 14-25.
[7] Sur certaines connexions naturelles d'un groupe de Lie, Applications, Topologie et Géometrie Différentielle, Séminaire dirigé par C. Ehresman 7(1964), exposé 5.
[8] Ein Beispiel zur allgemeinen Topologie: die Topologie einer Aequivalenzrelation, Ann. Acad. Sci. Fenn, Series A., 344(1964).
[9] Ein invariantes Vektorraumfeld auf einem reduktiven, lokalsymmetrischen homogenem Raum ist involutorisch, Math. Z. 85(1964), 383-384.
[10] Champs invariants de p-plans sur un espace homogène, C. R. Acad. Sci. Paris 259(1964), 4473-4475.
[11] Invariant subbundles of the tangentbundle on a reductive homogeneous space, Math. Z. 89(1965), 420-421.
[12] Categorias y Functores, Lecture Notes, University of Buenos Aires, 1965, 97 pp.
[13] Introduction to Lie groups and transformation groups, Lecture Notes in Math. 7, Springer-Verlag, Berlin-Heidelberg-New York, 1966, 176 pp.
[14] On sectional curvatures and characteristic of homogeneous space, with W. Greub, Proc. Amer. Math. Soc. 17(1966), 444-448.
[15] Invariant subbundles of the tangentbundle of a homogeneous space, Canad. J. of Math. 18(1966), 629-643.
[16] Flat bundles, with F. Kamber, Proc. Int. Congress of Math., (1966), Moscow.
[17] On flat bundles, with F. Kamber, Bull. Amer. Math. Soc. 72(1966), 846-849.
[18] Flat bundles and characteristic classes of group representations, with F. Kamber, Amer. J. Math. 89 (1967), 857-886.
[19] The characteristic homomorphism of flat bundles, with F. Kamber, Topology 6 (1967), 153-159.
[20] Variétés plates, Revue Roumaine des Math. Pures et Appl. 13(1968), 1035-1037.
[21] Flat Manifolds, with F. Kamber, Lecture Notes in Math. 67, Springer-Verlag, Berlin-Heidelberg-New York, 1968, 53 pp.
[22] Flat manifolds with parallel torsion, with F. Kamber, J. Differential Geometry 2(1968), 385-389.
[23] Introduction to Lie groups and transformation groups, Lecture Notes in Math. 7, Springer-Verlag, Berlin-Heidelberg-New York, second edition, 1968, 176 pp.
[24] Invariant differential operators and cohomology of Lie algebra sheaves, with F. Kamber, Differentialgeometrie im Grossen, Juli 1969; Berichte aus dem Math. Forschungsinstitut Oberwolfach, Heft 4, Mannheim, (1971), 177-230.
[25] Invariant differential operators and cohomology of Lie Algebra sheaves, with F. Kamber, Memoirs of the Amer. Math. Soc. 113(1971), 1-125.
[26] Cohomologie des algèbres de Weil relatives tronquées, with F. Kamber, C. R. Acad. Sci. Paris 276(1973), 459-462.
[27] Algebrès de Weil semi-simpliciales, with F. Kamber, C. R. Acad. Sci. Paris t. 276(1973), 1177-1179.
[28] Homomorphisme caractéristique d'un fibré principal feuilleté, with F. Kamber, C. R. Acad. Sci. Paris, t. 276(1973), 1407-1410.
[29] Classes caractéristiques dérivées d'un fibré principal feuilleté, with F. Kamber, C. R. Acad. Sci. Paris t. 276(1973), 1449-1452.
[30] Characteristic invariants of foliated bundles, with F. Kamber, Manuscripta Mathematica 11(1974), 51-89.
[31] Semi-simplicial Weil algebras and characteristic classes for foliated bundles in Cech cohomology, with F. Kamber, Proc. Symp. Pure Math. AMS 27(1975), part I, 283-294.
[32] Classes caractéristiques généralisées des fibrés feuilletés localement homogènes, with F. Kamber, C. R. Acad. Sci. Paris 5. 279(1974), 847-850.
[33] Quelques classes caractéristiques généralisées non-triviales de fibrés feuilletés, with F.  Kamber, C. R. Ac. Sc. Paris, t. 279(1974), 921-924.
[34] Foliated bundles and characteristic classes, with F. Kamber, Lecture Notes in Math. 493, Springer-Verlag, Berlin-Heidelberg-New York, 1975, 208 pp.
[35] Non-trivial characteristic invariants of homogeneous foliated bundles, with F. Kamber, Ann. Scient. Ec. Norm. Sup. 8(1975), 433-486.
[36] Classes caractéristiques et suites spectrales d'Eilenberg-Moore, with F. Kamber, C. R. Acad. Sci. Paris, t. 283(1976), 883-886.
[37] Characteristic classes and Koszul complexes, with F. Kamber, Proc. Symp. Pure Math. Vol. 32(1978), 159-166.
[38] Semi-simplicial Weil algebras and characteristic classes, with F. Kamber, Tohôku Math. J. 30(1978), 373-422.
[39] G-foliations and their characteristic classes, with F. Kamber, Bull. Amer. Math. Soc. 84(1978), 1086-1124.
[40] On the linear independence of certain cohomology classes of Bq, with F. Kamber, Advances in Math. Suppl. Studies Vol. 5(1979), 213-263.
[41] Feuilletages harmoniques, with F. Kamber, C. R. Ac. Sc. Paris, t. 291(1980), 409-411.
[42] Harmonic foliations, with F.  Kamber, Proc. NSF Conference on Harmonic Maps, Tulane University (1980), Springer Lecture Notes in Math. 949(1982), 87-121.
[43] Infinitesimal automorphisms and second variation of the energy for harmonic foliations, with F. Kamber, Tôhoku Math. J. 34(1982), 525-538.
[44] Dualité de Poincaré pour les feuilletages harmoniques, with F. Kamber, C. R. Acad. Sci. Paris t. 294(1982), 357-359.
[45] The index of harmonic foliations on spheres, with F. Kamber, Trans. Amer. Math. Soc. 275 (1983), 257-263.
[46] Duality for Riemannnian foliations, with F. Kamber, Proc. Symp. Pure Math. 40(1983), part I, 609-618.
[47] Foliations and metrics, with F. Kamber, Proc. of the 1981-82 year in Differential Geometry, University of Maryland, Birkhäuser, Progress in Mathematics 32(1983), 103- 152.
[48] Curvature properties of harmonic foliations, with F. Kamber, Illinois J. Math. 28(1984), 458-471.
[49] Duality theorems for foliations, with F. Kamber, Astérisque 116(1984), 108-116.
[50] The Bernstein problem for foliations, with F. Kamber, Proc. of the Conference on Global Differential Geometry and Global Analysis, Berlin 1984, Springer Lecture Notes in Math. 1156(1985), 216-218.
[51] A characterization of harmonic foliations by variations of the metric, with M. Hvidsten, Proc. Amer. Math. Soc. 98 (1986), 359-362.
[52] Almost transversally symmetric foliations, with F. Kamber and E. A. Ruh, Proc. of the II. Int. Symp. on Differential Geometry, Peniscola (Spain) 1985, Springer Lecture Notes in Math. 1209(1986), 184-189.
[53] De Rham-Hodge theory for Riemannian foliations, with F. Kamber, Math. Ann. 277(1987), 415-431.
[54] Transversal Jacobi fields for harmonic foliations, with F. Kamber and G. Toth, Mich. Math. J. 34(1987), 261-266.
[55] On transversal infinitesimal automorphisms for harmonic foliations, with G. Toth, Geometriae Dedicata 24(1987), 229-236.
[56] Barycentric representation for the incenter and the excenters of a triangle, Amer. Math. Monthly 94(1987), 975-976.
[57] Foliations and harmonic forms, with F. Kamber, Colloque sur les applications harmoniques, Luminy 1986, Harmonic mappings, twistors and s-models, Adv. Series in Math. Phys. Vol. 4, World Scientific Publ. Co., Singapore, 1988, 15-25.
[58] Comparing Riemannian foliations with transversally symmetric foliations, with F. Kamber and E. A. Ruh, J. of Diff. Geom. 27(1988), 461-475; Erratum, J. of Diff. Geom. 32(1990), 917.
[59] The mean curvature of Riemannian foliations, Journeés lyonnaises de la Société mathématique de France, 1986, Feuilletages riemanniens, quantification géométrique et mécanique, Travaux en cours 26 (1988), 41-52.
[60] Transversal infinitesimal automorphisms for harmonic Kähler foliations, with S. Nishikawa, Tôhoku Math. J. 40(1988), 599-611.
[61] Foliations on Riemannian manifolds, Universitext, Springer Verlag, Berlin-Heidelberg-New York, 1988, 247 pp.
[62] Reflections in submanifolds, with L. Vanhecke, Geometriae Dedicata 28(1988), 77-85.
[63] Transversal infinitesimal automorphisms of harmonic foliations on complete manifolds, with S. Nishikawa, Annals of Global Analysis and Geometry 7(1989), 47-57.
[64] Heat conduction for Riemannian foliations, with S. Nishikawa and M. Ramachandran, Bull. Amer. Math. Soc. 21(1989), 265-267.
[65] Almost Lie foliations and the heat equation method, with E. A. Ruh, Proc. of the VI. Int. Coll. on Differential Geometry, Santiago de Compostela (Spain) 1988, Cursos y Congresos 61, Univ. Santiago de Compostela, 1989, 239-246.
[66] Isometric reflections with respect to submanifolds, with L.  Vanhecke, S. Stevin 63(1989), 107-116.
[67] Isometric reflections with respect to submanifolds and the Ricci operator of geodesic spheres, with L. Vanhecke, Monatshefte für Mathematik 108(1989), 211-217.
[68] The heat flow along the leaves of a Riemannian foliation, with J. A. Alvarez López, Geometric and topological invariants of elliptic operators, Contemporary Mathematics, Vol. 105(1990), 271-280.
[69] The heat equation for Riemannian foliations, with S. Nishikawa and M. Ramachandran, Trans. Amer. Math. Soc. 319(1990), 619-630.
[70] The life and work of Kuo-Tsai Chen, with R.  Hain, Ill. J. of Math. 34(1990), 175-188.
[71] Transversally symmetric Riemannian foliations, with L. Vanhecke, Tôhoku Math. J. 42(1990), 307-317.
[72] Hodge decomposition along the leaves of a Riemannian foliation, with J. A. Alvarez López, J. Funct. Anal. 99(1991), 443-458.
[73] Vanishing theorems for the basic cohomology of Riemannian foliations, with M. Min-Oo and E. Ruh, J. für die reine und angewandte Mathematik 415(1991), 167-174.
[74] A comparison theorem for almost Lie foliations, with M. Min-Oo and E. A. Ruh, Annals of Global Analysis and Geometry 9(1991), 61-66.
[75] Transversal curvature and tautness for Riemannian foliations, with M. Min-Oo and E. Ruh, Proc. of the Conference on Global Analysis and Global Differential Geometry, Berlin 1990, Springer Lecture Notes in Math. 1481(1991), 145-146.
[76] Spectral geometry for Riemannian foliations, with S. Nishikawa and L. Vanhecke, Annals of Global Analysis and Geometry 10(1992), 291-304.
[77] Riemannian foliations and tautness, Proc. Symp. Pure Math. AMS 54 (1992), Part 3, 667-672.
[78] Riemannian foliations on manifolds with non-negative curvature, with H. Kim, Manuscripta Math. 74(1992), 39-45.
[79] Riemannian foliations and the heat equation, Geometry and its Applications, ed. by T. Nagano, H. Omori, Y. Maeda and M. Kanai, World Scientific, Singapore, 1993, 233-239.
[80] Characterizing special Riemannian foliations, with L. Vanhecke, Simon Stevin 67(1993), 227-234.
[81] A characterization of Riemannian foliations and totally umbilical submanifolds, with L. Vanhecke, Bull. Austral. Math. Soc. 48(1993), 101-108.
[82] The mean curvature of gauge orbits, with Y. Maeda and S. Rosenberg, Global Analysis in Modern Mathematics, The Palais Festival Volume, Publish or Perish, Inc. (1993), 171-217.
[83] Vectors and transformations in plane geometry, Publish or Perish Inc. 1993, 135 pp.
[84] Geometry of Riemannian foliations, Seminar on Mathematical Sciences 20(1994), Keio University, Yokohama, 110 pp.
[85] Minimal submanifolds in infinite dimensions, with Y. Maeda and S. Rosenberg, Proceedings of the 1994 Santiago Conference on Foliations, Analysis and Geometry in Foliated Manifolds, Eds. X. Masa, E. Macias, J. A. Alvarez, World Scientific 1995, pp. 177-182.
[86] Jacobi fields, Riccati equation and Riemannian foliations, with L. Vanhecke, Ill. J. of Math. 40(1996), 211-225.
[87] Survey of Riemannian foliations, Proceedings of the 24th National Conference of Geometry and Topology, Timisoara (Romania), July 5-9, 1994, 145-251; 1996.
[88] Harmonicity of a foliation and of an associated map, with L. Vanhecke, Bull. Austral. Math. Soc. 54(1996), 241-246.
[89] Geometry of foliations, Monographs in Mathematics, Vol. 90, Birkhaeuser Verlag, Basel, 1997, 305 pp.
[90] Examples of weakly symmetric spaces in contact geometry, with J. Berndt and L. Vanhecke, Boll. Un. Mat. Ital. (7) 11-B(1997), suppl. fasc. 2, 1-10.
[91] Four-dimensional ball-homogeneous spaces and C-spaces, with G. Calvaruso and L. Vanhecke, Beitraege zur Algebra und Geometrie 38(1997), 325-336.
[92] Minimal orbits of metrics, with Y. Maeda and S. Rosenberg, J. Geom. and Physics 23(1997), 319-349.
[93] A characterization of Riemannian flows, Proc. Amer. Math. Soc. (1997), 3403-3405.
[94] Inverse spectral theory for Riemannian foliations and curvature theory, with S. Nishikawa and L. Vanhecke, Progress in Inverse Spectral Theory, Trends in Mathematics (eds. St.  I.  Andersson and M.  I.  Lapidus), Birkhäuser 1997.
[95] Collected papers of K.-T. Chen, Birkhaeuser Verlag, Boston, 2001, 737 pp. (Editor).
[96] NSF Mathematical Sciences Initiative, Notices of the AMS, March 2001, p. 293 (pdf file).
[97] NSF Initiative gives field (of the mathematical sciences) a chance to show relevance, Charles Seife, Science 294 (2001), 2275. (pdf file).
[98] Tondeur retires from NSF, Remarks at Retirement Reception held May 15, 2002, at the National Academy of Sciences in Washington, D.C., The Emissary, June 2002, 7-8. (pdf file).
[99] Division of DMS Director reflects on three productive years; SIAM News, Vol. 35, Number 6 (2002), p. 12 (html file).
[100] Interview with Philippe Tondeur; Notices of the AMS, Vol. 49, Number 8 (2002), 918-921 (pdf file).
[101] The future of mathematical sciences: an interview, European Mathematical Society Newsletter, Issue 49, 2003 (pdf file).
[102] The Digital Mathematical Library Project, Status August 2005 (pdf file).
[103] NSF - A Wake-up Call, Notices of the AMS, June/July 2005, p. 597 (pdf file).
[104] The World Digital Mathematical Library: an infrastructure need of the mathematical sciences, National Institute of Informatics News (Japan), no. 13 (2005), p. 5 (pdf file).
[105] Should mathematicians care about communicating to broad audiences? ICM 2006 Madrid, EMS Panel Presentation, August 23, 2006 (ppt file).
[106] 2008 SIAM Prize for Distinguished Service to the Profession, July 8, 2008 (pdf file).
[107] Exploring math: an interview with Philippe Tondeur, by Jim Dey, Math Times, Fall 2008 (pdf file).
[108] Public Advocacy for the Mathematical Sciences, Mathematics Today, Vol 45, No 4, August 2009, 163-164 (pdf file).
[109] An interview with Philippe Tondeur, Donald J. Albers and Gerald L. Alexanderson, Editors, Fascinating Mathematical People, Chapter 16, 294-318 (labeled in this particular link as 313-337) (pdf file).

Invited Addresses and Talks


Year    Institution
1961    Univ. of Zurich
1962    Univ. of Paris
1963    ETH, Zurich

1964    

  • Univ. of Recife
  • Univ. of Brasilia
  • IMPA, Rio de Janeiro
  • Univ. of Sao Paulo
  • Univ. of Tucuman
  • Univ. of Santiago de Chile
  • Univ. of Lima
  • Univ. of Caracas

1965    

  • AMS Annual Meeting, Denver
  • Harvard Univ.
  • Princeton Univ.
  • Cornell Univ.
  • Syracuse Univ.
  • Rochester Univ.
  • Univ. of Toronto
  • Univ. of Minnesota

1966    

  • Univ. of California, Berkeley (Visiting Lecturer)
  • Univ. of British Columbia, Vancouver
  • Univ. of Washington, Seattle
  • Wesleyan Univ., Middletown
  • Univ. of California, Davis
  • Int. Congress of Math., Moscow

1967    

  • Univ. of Wisconsin, Milwaukee
  • Yale Univ., New Haven
  • Univ. of Massachusetts, Amherst (Lecture Series)
  • Univ. of Illinois, Urbana
  • Univ. of Mexico
  • Univ. of Bucharest
  • Mathematical Institute Oberwolfach, Topologie Tagung

1968    

  • Univ. of Auckland, New Zealand (Visiting Professor)
  • Univ. of Wellington, New Zealand
  • Christ Church Univ., New Zealand
  • Univ. of Canberra
  • Univ. of Melbourne
  • Tokyo Institute of Technology

1969    

  • Univ. of Toronto
  • Univ. of Montreal

1970    ETH, Zurich
1971    Ohio State Univ., Columbus

1972    

  • Univ. of Notre Dame
  • Univ. of Toronto

1973    

  • ETH, Zurich (Lecture Series)
  • Univ. of Heidelberg (Visiting Professor)
  • Univ. of Mannheim
  • AMS Summer Research Institute on Differential Geometry,
  • Stanford Univ.

1974    

  • Ohio State Univ., Columbus

1975    

  • ETH, Zurich (Lecture Series)
  • Indiana Univ., Bloomington

1976    

  • NSF Regional Conference on Symplectic Geometry, Chapel Hill
  • Univ. of Warwick
  • AMS Summer Research Institute on Algebraic and Geometric Topology,
  • Stanford Univ.
  • AMS Meeting, Univ. of Michigan, Ann Arbor (Invited Hour Lecture)

1977    

  • Ohio State Univ., Columbus
  • Univ. of Montreal (Lecture Series)

1978    ETH, Zurich (Lecture Series)
1979    Indiana Univ., Bloomington
1980    NSF Regional Conference on Harmonic Maps, Tulane Univ.

 

1981    

  • AMS Annual Meeting, San Francisco
  • Year in Differential Geometry, Univ. of Maryland (Lecture Series)

1982    

  • AMS Meeting, Univ. of Wisconsin, Madison
  • Differential Geometry and Global Analysis Conference,
  • Münster  (Germany)
  • Univ. of Zurich (Visiting Professor)

1983    

  • Yale University (Lecture Series)
  • Tagung in Differentialgeometrie im Grossen,
  • Mathematical Institute Oberwolfach

1984    

  • Univ. of Rome (Visiting Professor)
  • Differential Geometry and Global Analysis Conference,
  • Techn. Univ. Berlin
  • Univ. of Dortmund

1985    

  • Differential Geometry Conference, Peniscola (Spain)
  • AMS Meeting, Univ. of Missouri, Columbia

1986    

  • Colloquium on Symplectic Geometry and Mathematical Physics,
  • Univ. of Lyon (France)
  • Colloquium on Harmonic Maps,
  • Centre International de Rencontres Mathematiques, Luminy (Marseille, France)

1987

  • Univ. Paris VII (Séminaire Besse)
  • Michigan State Univ., East Lansing
  • Univ. of Santiago de Compostela (Visiting Professor)
  • Max Planck Institute für Mathematik, Bonn (Visiting Professor)
  • AMS Meeting, Univ. of Nebraska, Lincoln
  • Emory Univ., Atlanta (Argonne Distinguished Lecture Series)

1988    

  • NSF Regional Conference on Kaluza-Klein Theories,
  • Univ. of New Mexico, Albuquerque
  • Ohio State Univ., Columbus
  • Univ. of Illinois, Chicago
  • Differential Geometry Conference, Peniscola (Spain)
  • Univ. of Bilbao
  • Univ. of Vienna
  • Differential Geometry and Global Analysis Conference,
  • Irsee, Bavaria (Germany)
  • AMS Summer Research Conference on Geometric and Topological
  • Invariants of Elliptic Operators, Bowdoin College, Brunswick, Maine
  • NSF Regional Conference on Kaehler Geometry and Several Complex Variables,
  • Eastern Illinois Univ., Charleston
  • Differential Geometry Workshop, Hamilton, Ontario
  • Conference on Differential Geometry,
  • Santiago de Compostela (Spain)
  • Univ. of Kansas, Lawrence

  • AMS Meeting, Univ. of Kansas, Lawrence

1989    

  • Differential Geometry Day, Eastern Illinois Univ., Charleston
  • Ohio State Univ., Columbus
  • Univ. of Basel
  • NSF Regional Conference on Heat Equations in Geometry,
  • Univ. of Hawaii, Honolulu
  • Reinhart Memorial Foliation Conference, Univ. of Maryland

1990    

  • Dartmouth College, Hanover, N.H.
  • Univ. of Leuven, Belgium (Visiting Professor)
  • Differential Geometry and Global Analysis Conference, Techn. Univ. Berlin
  • AMS Summer Research Institute on Differential Geometry, UCLA
  • Conference on Foliations, Lódz (Poland)

1991    

  • AMS Annual Meeting, San Francisco
  • NSF Regional Geometry Institute, Park City, Utah
  • Tôhoku Univ., Sendai
  • Hokkaido Univ., Sapporo
  • Kanazawa Univ., Kanazawa
  • Nagoya Univ., Nagoya
  • Workshop on Global Analysis, Keio Univ., Yokohama

1992    AMS Meeting, Southwest Missouri Univ., Springfield

1993    

  • Tagung in Differentialgeometrie im Grossen, Oberwolfach
  • Micro-Program in Riemannian Geometry,
  • Fields Institute for Research in Mathematical Sciences,
  • Waterloo Univ., Ontario
  • International Symposium on the Geometric Study of Foliations
  • Chuo Univ. and Tokyo Institute of Technology, Tokyo.
  • Keio Univ., Yokohama (Visiting Professor)
  • Yonsei Univ., Seoul

1994    

  • Holiday Mathematics Symposium on Analytic Gauge Theory,
  • New Mexico State Univ., Las Cruces
  • Romanian National Conference on Geometry and Topology,
  • Univ. of Timisoara
  • VII Internat. Colloq. on Differential Geometry,
  • Analysis and Geometry in Foliated Manifolds, Santiago de Compostela (Spain)

1995    

  • Conference on Foliations: Geometry and Dynamics,
  • Banach Center, Warsaw
  • Univ of Zürich

1996    

  • AMS Meeting, Univ. of Iowa, Iowa City
  • AMS Meeting, Univ. of Missouri, Columbia

1997    

  • National Chairs meeting, NRC, Washington, D.C.,
  • Presentation of Recent Progress in Mathematics at UIUC

1998    

  • UIUC-CNRS meeting, Beckman Institute, UIUC,
  • Presentation of Interdisciplinary Research Initiatives in Mathematics at UIUC
  • UIUC-NSF OPAAL site visit
  • Presentation of Interdisciplinary Research Initiatives in Mathematics at UIUC
  • NSF - Division of Mathematical Sciences, Washington, D.C.
  • A View on The Future of the Mathematical Sciences
  • National Chairs Meeting, NRC, Washington, D.C.
  • How to successfully chair a Department of Mathematics
  • NSF - Director and Staff, Washington, D.C.
  • Mathematics Research and Education

1999    

  • AMS - Committee on Science Policy, Washington, D.C.
  • The role of the Director of the Division of Mathematical Sciences
  • NSF - MPS Advisory Committee, Washington, D.C.
  • Mathematics at the Beginning of the 21st Century
  • JPBM - Washington, D.C.
  • The Mathematical Sciences at NSF
  • Univ. of California - Los Angeles
  • Funding, Goals, and Future of the Mathematical Sciences
  • NSF - Washington, D.C.
  • A Vision for the Mathematical Sciences
  • BMS, NAS - Washington, D.C.
  • Fundamental and Interdisciplinary Mathematical Sciences
  • National Chairs Meeting, NAS - Washington, D.C.
  • Funding and Goals for the Division of Mathematical Sciences
  • JPBM - Washington, D.C.
  • An Initiative for the Mathematical Sciences
  • CBMS - Washington, D.C.
  • The Role of the Division of Mathematical Sciences

2000    

  • AMS - Washington, D.C.
  • The Mathematical Sciences at the Beginning of The Third Millennium
  • Univ. of California - Santa Barbara
  • Federal Funding Prospects for the Mathematical Sciences
  • Univ. of Arizona - Tucson, Arizona
  • A NSF Perspective on the Mathematical Sciences
  • Univ. of Maryland, College Park
  • The Mathematical Sciences in 2010
  • Geometry Festival at the University of Maryland, College Park
  • Prospects for the Mathematical Sciences
  • BMS, NAS - Washington, D.C.
  • A Mathematical Sciences Initiative at NSF
  • Howard Univ., Washington, D.C.
  • Workforce Issues for the Mathematical Sciences
  • JPBM - Washington, D.C.,
  • The Funding Outlook for the Mathematical Sciences
  • Cornell Univ., Ithaca,
  • David Blackwell and Richard Tapia - Their contributions
  • to the Mathematical Sciences
  • Univ. of Wisconsin, Madison,
  • Vision 2020 for the Mathematical Sciences
  • IPAM - Univ. of California, Los Angeles
  • A Forthcoming Initiative in the Mathematical Sciences
  • MSRI - Univ. of California, Berkeley
  • The Mathematical Sciences Initiative
  • Nankai Institute of Mathematics, Tianjin, China
  • Challenges and Opportunities for the Mathematics Sciences
  • BMS, NAS - Washington, D.C.
  • More details on NSF's Mathematical Sciences Initiative.
  • MPS Advisory Committee - NSF, Washington, D.C.
  • Opportunities for the Mathematical Sciences.
  • JPBM - Washington, D.C.
  • The Outlook for NSF's Mathematical Sciences Initiative.

2001    

  • AMS Annual Meeeting - New Orleans
  • An outline of NSF's Mathematical Sciences Initiative.
  • Duke University - Raleigh, N.C.
  • An NSF perspective of the Mathematical Sciences.
  • Princeton - Princeton Committee on the Mathematical Sciences, Institute for Advanced Study
  • The Nation's investment in the Mathematical Sciences
  • BMS, NAS - Washington, D.C.
  • The NSF Investment in the Mathematical Sciences.
  • AMS, Committee on Science Policy - Washington, D.C.
  • The FY 2002 Budget for the Mathematical Sciences at NSF.
  • SIAM, Committee on Science Policy - Washington, D.C.
  • Strategic Planning for the Mathematical Sciences.
  • JPBM - Washington, D.C.
  • Budget Strategy for the Mathematical Sciences.
  • Univ. of California - Santa Cruz
  • An NSF Perspective of the Mathematical Sciences.
  • University of Texas, Austin
  • The Pervasiveness of the Mathematical Sciences
  • Massachusetts Institute of Technology, Cambridge, MA
  • The Role of the Mathematical Sciences
  • Pacific Institute for the Mathematical Sciences (PIMS)
  • Univ. of British Columbia, Vancouver, B.C.
  • Opportunities and Challenges for the Mathematical Sciences
  • AMS, Committee on Education - Washington, D.C.
  • DMS and Mathematics Education
  • NSERC - NSF, joint BIRS Award Ceremony
  • A new Mathematical Sciences Conference Center
  • CBMS - National Summit on the Mathematics Preparation of Teachers
  • Tyson Corner, Arlington, VA
  • Mathematics in the World after 9/11
  • BMS, NAS - Washington, D.C.
  • The Mathematical Sciences as an NSF Priority Area

2002    

  • Mathematics Joint Meeting - San Diego
  • New Directions for the Mathematical Sciences at NSF
  • Mathematics Joint Meeting - San Diego
  • Digital Mathematics Library
  • MSRI - Berkeley, CA
  • The Mathematical Sciences - a perspective on the federal support role after
  • serving three years as Director of NSF's Division of Mathematical Sciences
  • Statistical Society Presidents - Washington, D.C.
  • Statistics and the Mathematical Sciences Priority Area
  • Geometry Festival - Courant Institute for the Mathematical Sciences, NYU
  • An NSF perspective of the Mathematical Sciences - three years later
  • BMSA, NAS - Washington, D.C.
  • The Mathematical Sciences - a perspective on the federal support role after
  • serving three years as Director of NSF's Division of Mathematical Sciences
  • CATS, NAS - Washington, D.C.
  • Mathematics and Statistics support by NSF
  • Univ. of Illinois at Urbana-Champaign
  • The Mathematical Sciences - a perspective on the federal support role after
  • serving three years as Director of NSF's Division of Mathematical Sciences
  • Univ. of Illinois at Urbana-Champaign
  • On retiring from the faculty of the University of Illinois
  • Workshop on the Future of Statistics - Washington, D.C.
  • Mathematics and Statistics support by NSF
  • Univ. of Illinois at Urbana-Champaign
  • Commencement Address for the Departments of Mathematics and Statistics
  • The Mathematical Sciences in our World
  • NAS, Washington, D.C.
  • On retiring from the Directorship of the Division of Mathematical Sciences
  • Mathematics of Information Technology and Complex Systems (MITACS)
  • Vancouver, B.C.
  • The Mathematical Sciences in our World
  • Discover Magazine at the U.S. Senate Hart Building, Washington, D.C.
  • Does Math Matter?

2003    

  • Meeting of European Mathematics Program Directors - Paris
  • NSF funding of research in the Mathematical Sciences

2004    

  • Ohio State University - Columbus
  • How the Division of Mathematical Sciences at NSF increased and allocated its budget from 1999 to 2003
  • Gordon and Betty Moore Foundation - San Francisco
  • The World Digital Mathematical Library Project
  • Univ. of Santiago de Compostela
  • The funding of mathematics research by the U.S. Government

2005    

  • Tohoku University - Sendai, Japan
  • The future of research in the Mathematical Sciences and the U.S. Government
  • Tohoku University - Sendai, Japan
  • Infrastructure needs of the Mathematical Sciences: The World Digital Mathematics Library
  • National Institute of Informatics - Tokyo
  • The World Digital Mathematics Library
  • Tulane University - New Orleans
  • The funding of the mathematical sciences in the U.S.
  • Colloquium on Future Directions in Mathematics - Brussels, Palace of the Academies
  • Infrastructure needs of the Mathematical Sciences and government support in the USA


2006    

  • International Congress of Mathematicians 2006 - Madrid
  • EMS Panel on the question: Should mathematicians care about communicating to broad audiences?
  • Institute for Mathematics and its Applications - Minneapolis
  • Workshop on the Evolution of Mathematical Communication in the Age of Digital Libraries
  • Panel on Digital Libraries today.