Items where Author is "Ballmann, Werner"

MPIM Preprint

Ballmann, Werner and Mondal, Sugata (2023) Spectral instability of coverings. MPIM Preprint Series 2023 (27).

Ballmann, Werner and Mukherjee, Mayukh and Polymerakis, Panagiotis (2023) On the spectrum of Hadamard manifolds. MPIM Preprint Series 2023 (3).

Ballmann, Werner and Polymerakis, Panagiotis (2021) Bottom of spectra and coverings of orbifolds. MPIM Preprint Series 2021 (47).

Ballmann, Werner and Polymerakis, Panagiotis (2021) Small eigenvalues of Schrödinger operators over geometrically finite manifolds. MPIM Preprint Series 2021 (30).

Ballmann, Werner and Polymerakis, Panagiotis (2021) On the essential spectrum of differential operators over geometrically finite orbifolds. MPIM Preprint Series 2021 (9).

Ballmann, Werner and Polymerakis, Panagiotis (2020) Equivariant discretizations of diffusions and harmonic functions of bounded growth. MPIM Preprint Series 2020 (9).

Ballmann, Werner and Polymerakis, Panagiotis (2020) On the differential form spectrum of geometrically finite orbifolds. MPIM Preprint Series 2020 (62).

Ballmann, Werner and Polymerakis, Panagiotis (2019) Bottom of spectra and coverings. MPIM Preprint Series 2019 (66).

Ballmann, Werner and Polymerakis, Panagiotis (2019) Equivariant discretizations of diffusions, random walks, and harmonic functions. MPIM Preprint Series 2019 (41).

Ballmann, Werner and Matthiesen, Henrik and Polymerakis, Panagiotis (2018) Bottom of spectra and amenability of coverings. MPIM Preprint Series 2018 (19).

Ballmann, Werner and Matthiesen, Henrik and Mondal, Sugata (2017) On the analytic systole of Riemannian surfaces of finite type. MPIM Preprint Series 2017 (5).

Ballmann, Werner and Matthiesen, Henrik and Polymerakis, Panagiotis (2017) On the bottom of spectra under coverings. MPIM Preprint Series 2017 (7).

Ballmann, Werner and Matthiesen, Henrik and Mondal, Sugata (2017) Small eigenvalues of surfaces - old and new. MPIM Preprint Series 2017 (61).

Ballmann, Werner and Matthiesen, Henrik and Mondal, Sugata (2014) Small eigenvalues of closed surfaces. MPIM Preprint Series 2014 (43).

Bär, Christian and Ballmann, Werner (2013) Guide to elliptic boundary value problems for Dirac-type operators. MPIM Preprint Series 2013 (44).

Ballmann, Werner (2013) On eta-functions for nilmanifolds. MPIM Preprint Series 2013 (43).

Bär, Christian and Ballmann, Werner (2011) Boundary value problems for elliptic differential operators of first order. MPIM Preprint Series 2011 (2).

Ballmann, Werner and Brüning, Jochen and Carron, Gilles (2010) Index theorems on manifolds with straight ends. MPIM Preprint Series 2010 (103).

Ballmann, Werner and Swiatkowski, Jacek (1996) On L2-Cohomology And Property (T) For Automorphisms Groups Of Polyhedral Cell Complexes. MPIM Preprint Series 1996 (127).