• Source: Thomas Kappeler
    • Thomas Kappeler (12 February 1953 – 30 May 2022) was a Swiss mathematician and professor at the University of Zurich.
      Kappeler's main research was in global analysis, partial differential equations and dynamical systems in infinite dimensions.
      Kappeler co-founded the Zurich Graduate School in Mathematics, a joint doctoral program of the Mathematics departments of ETH Zurich and University of Zurich. He also actively supported young kids with talent in mathematics. He was the co-leader of the children's math club Junior Euler Society.


      Life


      Kappeler studied mathematics at ETH Zurich, where he did his Ph.D. in 1981 under the supervision of Corneliu Constantinescu. He was a visiting professor at the University of California, Berkeley, the University of Pennsylvania, Brandeis University and Brown University. He was a professor at Ohio State University from 1990 till 1996. After that he became a mathematics professor at University of Zurich.


      Selected publications


      Kappeler published more than 150 research articles. He also published two books on partial differential equations.

      Craig, Walter; Kappeler, Thomas; Strauss, Walter (1995). "Microlocal dispersive smoothing for the Schrödinger equation". Communications on Pure and Applied Mathematics. 48 (8): 769–860. doi:10.1002/cpa.3160480802.
      Burghelea, Dan; Friedlander, Leonid; Kappeler, Thomas (1992). "Mayer-Vietoris type formula for determinants of elliptic differential operators". Journal of Functional Analysis. 107 (1): 34–65. doi:10.1016/0022-1236(92)90099-5.
      Kappeler, Thomas; Perry, Peter A.; Shubin, Mikhail A.; Topalov, Peter (2005). "The Miura map on the line" (PDF). International Mathematics Research Notices. 2005 (50): 3091–3133. doi:10.1155/IMRN.2005.3091. S2CID 9065483.
      Kappeler, Thomas; Topalov, Peter (1 November 2006). "Global wellposedness of KdV in H−1(T,R)". Duke Mathematical Journal. 135 (2): 327–360. doi:10.1215/S0012-7094-06-13524-X.
      Kappeler, Thomas; Pöschel, Jürgen (2009). "On the periodic KdV equation in weighted Sobolev spaces". Annales de l'Institut Henri Poincaré C. 26 (3): 841–853. Bibcode:2009AIHPC..26..841K. doi:10.1016/j.anihpc.2008.03.004.
      Henrici, Andreas; Kappeler, Thomas (2009). "Nekhoroshev theorem for the periodic Toda lattice". Chaos. 19 (3): 033120. arXiv:0812.4912. Bibcode:2009Chaos..19c3120H. doi:10.1063/1.3196783. PMID 19792000. S2CID 18290712.
      Cohen, Daniel C.; Costa, Armindo; Farber, Michael; Kappeler, Thomas (2012). "Topology of Random 2-Complexes". Discrete & Computational Geometry. 47 (1): 117–149. arXiv:1006.4229. doi:10.1007/s00454-011-9378-0. MR 2886093. S2CID 254038254.


      = Books

      =
      Kappeler, Thomas; Pöschel, Jürgen (2003). KdV & KAM. doi:10.1007/978-3-662-08054-2. ISBN 978-3-540-02234-3.
      Grébert, Benoît; Kappeler, Thomas (2014). The Defocusing NLS Equation and Its Normal Form. doi:10.4171/131. ISBN 978-3-03719-131-6.


      References

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