Augustin Banyaga

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
Augustin Banyaga
Born (1947-03-31) March 31, 1947 (age 71)
Kigali, Rwanda
Nationality Rwandan-American
Alma mater University of Geneva
Scientific career
Fields Mathematics
Institutions Pennsylvania State University
Doctoral advisor André Haefliger

Augustin Banyaga (born March 31, 1947) is a Rwandan-born American mathematician whose research fields include symplectic topology and contact geometry. He is currently a Professor of Mathematics at Pennsylvania State University.


Banyaga earned his Ph.D. degree in 1976 at the University of Geneva under the supervision of André Haefliger. He was a member of the Institute for Advanced Study in Princeton, New Jersey (1977–1978),[1] Benjamin Peirce Assistant Professor at Harvard University (1978–1982), and assistant professor at Boston University (1982–1984), before joining the faculty at Pennsylvania State University in 1984 as associate professor. He was promoted to full professor in 1992.

He has made significant contributions in symplectic topology, especially on the structure of groups of diffeomorphisms preserving a symplectic form (symplectomorphisms). One of his best-known results states that the group of Hamiltonian diffeomorphisms of a compact, connected, symplectic manifold is a simple group; in particular, it does not admit any non-trivial homomorphism to the real line.

Banyaga is an editor of Afrika Matematica, the journal of the African Mathematical Union, and an editor of the African Journal of Mathematics. He has supervised the theses of 7 Ph.D. students.


  • Augustin Banyaga, Sur la structure du groupe des difféomorphismes qui préservent une forme symplectique, Commentarii Mathematici Helvetici 53 (1978), no. 2, 174–227. MR 0490874
  • Augustin Banyaga, On fixed points of symplectic maps, Inventiones Mathematicae 56 (1980), no. 3, 215–229. MR 0561971
  • Augustin Banyaga, On Isomorphic Classical Diffeomorphism Groups. I., Proceedings of the American Mathematical Society 98 (1986), no. 1, 113–118. JSTOR 2045779 MR 0848887
  • Augustin Banyaga, On Isomorphic Classical Diffeomorphism Groups. II., Journal of Differential Geometry 28 (1988), no. 1, 23–35. MR 0950553
  • Augustin Banyaga, A note on Weinstein's conjecture, Proceedings of the American Mathematical Society 123 (1990), no. 12, 3901–3906. JSTOR 2048230 MR 1021206


  1. ^ Institute for Advanced Study: A Community of Scholars Archived January 6, 2013, at the Wayback Machine.

External links

Retrieved from ""
This content was retrieved from Wikipedia :
This page is based on the copyrighted Wikipedia article "Augustin Banyaga"; it is used under the Creative Commons Attribution-ShareAlike 3.0 Unported License (CC-BY-SA). You may redistribute it, verbatim or modified, providing that you comply with the terms of the CC-BY-SA