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Retired

ao. Univ.-Prof. i.R. Dr. Thomas Hoffmann-Ostenhof
University of Vienna
Institute of Theoretical Chemistry
Währinger Str. 17
1090 Vienna
Austria

thoffmann@tbi.univie.ac.at
+43 1 4277 52768
Focus Area
Elliptic partial differential equations (like the time-independent Schroedinger equation) in relation to quantum mechanics and geometry. In particular, question related to regularity of solutions and spectral problems are considered.

The german Wikipedia also has an entry on Thomas Hoffmann-Ostenhof.
Publications
    12. B. Helfer, T. Hoffmann-Ostenhof, F. Jeauberteaum, C. Lena
    On the multiplicity of the second eigenvalue of the Laplacian in non simply connected domains - with some numerics -
    Asymptotic Analysis 121, 35-57, (2020), DOI: 10.3233/ASY-191594

    B. Helfer, T. Hoffmann-Ostenhof, F. Jeauberteaum, C. Lena.
    On the multiplicity of the second eigenvalue of the Laplacian in non simply connected domains - with some numerics -
    arXiv:1903.05998 [math.SP], (2020)

    11. D. Guzu, T. Hoffmann-Ostenhof, A. Laptev
    On a class of sharp multiplicative Hardy inequalities
    Algebra i Analiz 32, 180-190, (2020)

    10. B. Helffer, T. Hoffmann-Ostenhof, P. Marquetand
    On maximal multiplicities for Hamiltonians with separable variables
    (submitted), (2019)

    B. Helffer, T. Hoffmann-Ostenhof, P. Marquetand
    On maximal multiplicities for Hamiltonians with separable variables
    arXiv:1908.02752 [math.CO], (2020)

    9. V. Bonnaillie-Noel, B. Helffer, T. Hoffmann-Ostenhof
    Nodal domains, spectral minimal partitions and their relation to Aharonov-Bohm operators
    IAMP News Bulletin , , (2017)

    8. P. Charron, B. Helffer, T. Hoffmann-Ostenhof
    Pleijel's theorem for Schrödinger operators with radial potentials
    Annales mathématiques du Québec , , (2017), DOI: 10.1007/s40316-017-0078-x

    7. B. Helffer, T. Hoffmann-Ostenhof
    A review on large k minimal spectral k-partitions and Pleijel's Theorem
    Contemporary Math. 640, 39-58, (2015)

    6. T. Hoffmann-Ostenhof, A. Laptev
    Hardy inequalities with homogeneous weights
    J. Funct. Anal. 268, 3278-3289, (2015), DOI: 10.1016/j.jfa.2015.03.016

    5. T. Hoffmann-Ostenhof
    Eigenfunctions of 2-Dimensional Tori and for Rectangles with Neumann Boundary Conditions
    Moscow Math J. 15, 101-106, (2015)

    4. B. Helffer, T. Hoffmann-Ostenhof
    Minimal partitions of anisotropic tori
    J. Spectr. Theory 4, 221-233, (2014), DOI: 10.4171/JST/68

    3. B. Helffer, T. Hoffmann-Ostenhof
    Spectral minimal partitions for a thin strip on a cylinder or a thin annulus like domain with Neumann condition
    Operator Methods in Mathematical Physics; Operator Theory: Advances and Applications 227, 107-115, (2013), DOI: 10.1007/978-3-0348-0531-5_5

    2. B. Helffer, T. Hoffmann-Ostenhof
    On a magnetic characterization of spectral minimal partitions
    Journal of the European Mathematical Society 15, 2081-2092, (2013), DOI: 10.4171/JEMS/415

Contact:
Univ.-Prof. Dr. Dr. h.c. Leticia González

Universität Wien
Institut für Theoretische Chemie
Währinger Str. 17 A-1090 Wien

phone:
+43-1-4277-52751 (secretary)
+43-1-4277-52750 (Prof. González)

fax: +43-1-4277-9527

email: office.theochem@univie.ac.at

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