Contents of Ulmer Seminare Volume 20, 2016/2017
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A. Three-line proofs
- Wolfgang Arendt:
Liouville’s theorem, pp. 3–5 - Wolfgang Arendt and Ralph Chill:
Pettis’ theorem and very weakly measurable functions, pp. 5–7 - Benjamin Célariès and Isabelle Chalendar:
Three-lines proofs on semigroups of composition operators, pp. 9–14 - Ralph Chill:
Short proof of the Ingham–Karamata theorem, pp. 15–17 - A.F.M. ter Elst and Sylvie Monniaux:
Convergence of eigenvalues, pp. 17–18 - Stephan Fackler, Jochen Glück, and Manfred Sauter:
On continuously embedded Banach spaces, pp. 19–20 - Jochen Glück:
On dense subspaces of the intersection of two Banach spaces, pp. 21–23 - Gisele Ruiz Goldstein, Jerome A. Goldstein, Rosa Maria Mininni, and Silvia Romanelli:
A generalized Trotter product formula, pp. 25–28 - Markus Haase:
A short and elementary proof of “spectral radius equals norm” for selfadjoint operators, pp. 29–31 - Markus Haase:
Goldstine’s theorem without topology, pp. 31–32 - Markus Haase, Peer Christian Kunstmann, and Hendrik Vogt:
On the numerical range of generators of symmetric L∞-contractive semigroups, pp. 33–39 - Moochan Barnabas Kim, John W. Neuberger, and Wolfgang P. Schleich:
A perfect memory makes the continuous Newton method look ahead, pp. 41–44 - Jan Prüss:
A three-lines proof of the vector-valued Jensen inequality, pp. 45–47 - Wolfgang M. Ruess:
Fréchet spaces with the Schur property, pp. 47–49 - Jürgen Voigt:
On Green’s function, pp. 51–55
B. Open problems
- Wolfgang Arendt, Dominik Dier, and Stephan Fackler:
J. L. Lions’ problem on maximal regularity, pp. 57–72 - Wolfgang Arendt, A.F.M. ter Elst, and James B. Kennedy:
Can one hear the shape of a drum? – 50 years later, pp. 73–76 - Guy Cohen and Michael Lin:
The numerical range of Ritt contractions, pp. 77–80 - Guillermo P. Curbera and Werner J. Ricker:
Multipliers for spaces of unconditional series in the Hardy spaces Hp(D), pp. 81–84 - Stephan Fackler:
Regularity and maximal regularity, pp. 85–87 - Stephan Fackler:
The angle problem for the H∞-calculus, pp. 87–88 - Jochen Glück:
Is the peripheral spectrum of positive operators cyclic?, pp. 89–95 - Batu Güneysu:
The BMS conjecture, pp. 97–101 - Antoine Henrot:
Two open problems in spectral theory, pp. 101–105 - Bernd Kawohl:
Two dimensions are easier, pp. 107–112 - Pedro J. Miana:
Fractional convolution product associated to Mittag-Leffler functions, an open problem, pp. 113–118 - Mustapha Mokhtar-Kharroubi:
Some questions on absorption semigroups on L1(μ) spaces, pp. 119–124 - Delio Mugnolo:
Is essential self-adjointness of T∗T equivalent to essential self-adjointness of TT∗?, pp. 125–127 - Delio Mugnolo:
How to project onto convex functions?, pp. 125–127 - Rainer Nagel:
9 (AGFA-)Probleme: Version 2016, pp. 127–128 - Werner J. Ricker:
Commutativity of selfadjoint matrices, pp. 129–131 - Manfred Sauter:
How twisted can a Jordan curve be?, pp. 133–140 - Vincenzo Vespri:
Quasilinear evolution problems: Sharp estimates on the kernel estimates and Harnack estimates, pp. 141–148
C. Research articles
- Wolfgang Arendt and Marcel Kreuter:
Mapping theorems for Sobolev spaces of vector-valued functions, pp. 151–170 - Wolfgang Arendt, Stefan Kunkel, and Markus Kunze:
Diffusion with nonlocal Robin boundary conditions, pp. 171–195 - Anna Dall’Acqua and Klaus Deckelnick:
An obstacle problem for elastic graphs, pp. 195–210 - Dominik Dier:
Non-autonomous forms and invariance, pp. 211–223 - Stephan Fackler:
Non-autonomous maximal Lp-regularity under fractional Sobolev regularity in time, pp. 225–245 - El-Mennaoui Omar and Laasri Hafida:
On evolution equations governed by non-autonomous forms, pp. 245–254 - Paweł Keller and Iwona Wróbel:
A very fast, numerically stable, and accurate algorithm for inverting general tridiagonal matrices, pp. 255–261 - Hynek Kovařík and Delio Mugnolo:
Schrödinger operators on exterior domains with Robin boundary conditions: heat kernel estimates, pp. 263–281 - Vincent Laurent:
An alternative proof of the Faber–Krahn inequality, pp. 281–287 - Alexander Nerlich:
Asymptotic results for solutions of a weighted p-Laplacian evolution equation with Neumann boundary conditions, pp. 289–306 - Manfred Sauter:
Uniqueness of the approximative trace, pp. 307–331 - Frank Steiner:
Do black holes exist in a finite universe having the topology of a flat 3-torus?, pp. 331–351 - Vicente Vergara and Rico Zacher:
Stability, instability, and blowup for time fractional and other non-local in time semilinear subdiffusion equations, pp. 353–372