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SELECTED ASPECTS OF THE MATHEMATICAL WORK OF KRZYSZTOF P. WOJCIECHOWSKI

    Supported partially by Sonderforschungsbereich/Transregio 12 “Symmetries and Universality in Mesoscopic Systems” (Bochum-Duisburg/Essen–Köln–Warszawa).

    https://doi.org/10.1142/9789812773609_0001Cited by:0 (Source: Crossref)
    Abstract:

    To honor and to please our friend Krzysztof P. Wojciechowski I will review the milestones of his mathematical work. This will at the same time be a tour of Analysis and Geometry of Boundary Value Problems. Starting in the 80s I will discuss the spectral flow and the general linear conjugation problem, the Calderón projector and the topology of space of elliptic boundary problems. The theme of the 90s is the eta invariant. The paper with Douglas was fundamental for establishing spectral invariants for manifolds with boundary and for the investigation of the behavior of spectral invariants under analytic surgery. This was so influential that many different proofs of the gluing formula for the eta-invariant were published. Finally turning to the new millennium we will look at the zeta-determinant. Compared to eta this is a much more rigid spectral invariant which is technically challenging.

    Dedication: Dedicated to Krzysztof P. Wojciechowski on his 50th birthday
    Keywords:
    AMSC: Primary 58J32, Secondary 58J30, Secondary 58J28, Secondary 58J52, Secondary 35P99