Manifolds of nonpositive curvature. Zbl 0591.53001
Ballmann, Werner; Gromov, Mikhael; Schroeder, Viktor |
|
1985
|
Lectures on spaces of nonpositive curvature. With an appendix by Misha Brin: Ergodicity of geodesic flows. Zbl 0834.53003
Ballmann, Werner |
|
1995
|
On \(L^2\)-cohomology and property (T) for automorphism groups of polyhedral cell complexes. Zbl 0897.22007
Ballmann, W.; Świątkowski, J. |
|
1997
|
Lectures on Kähler manifolds. Zbl 1101.53042
Ballmann, Werner |
|
2006
|
Orbihedra of nonpositive curvature. Zbl 0866.53029
Ballmann, Werner; Brin, Michael |
|
1995
|
Nonpositively curved manifolds of higher rank. Zbl 0585.53031
Ballmann, Werner |
|
1985
|
Closed geodesics on positively curved manifolds. Zbl 0495.58010
Ballmann, W.; Thorbergsson, G.; Ziller, W. |
|
1982
|
Structure of manifolds of nonpositive curvature. I. Zbl 0589.53047
Ballmann, Werner; Brin, Misha; Eberlein, Patrick |
|
1985
|
Boundary value problems for elliptic differential operators of first order. Zbl 1331.58022
Bär, Christian; Ballmann, Werner |
|
2012
|
Existence of closed geodesics on positively curved manifolds. Zbl 0514.53044
Ballmann, W.; Thorbergsson, G.; Ziller, W. |
|
1983
|
Axial isometries of manifolds of non-positive curvature. Zbl 0487.53039
Ballmann, Werner |
|
1982
|
Amenable isometry groups of Hadamard spaces. Zbl 0913.53012
Adams, Scot; Ballmann, Werner |
|
1998
|
Structure of manifolds of nonpositive curvature. II. Zbl 0598.53046
Ballmann, Werner; Brin, Misha; Spatzier, Ralf |
|
1985
|
Periodic rank one geodesics in Hadamard spaces. Zbl 1167.53034
Ballmann, Werner; Buyalo, Sergei |
|
2008
|
Polygonal complexes and combinatorial group theory. Zbl 0832.57002
Ballmann, W.; Brin, M. |
|
1994
|
Guide to elliptic boundary value problems for Dirac-type operators. Zbl 1377.58022
Bär, Christian; Ballmann, Werner |
|
2016
|
Spaces of nonpositive curvature. Zbl 1031.53069
Ballmann, W. |
|
2001
|
On surfaces with no conjugate points. Zbl 0592.53041
Ballmann, W.; Brin, M.; Burns, K. |
|
1987
|
Fundamental groups of manifolds of nonpositive curvature. Zbl 0701.53070
Ballmann, Werner; Eberlein, Patrick |
|
1987
|
Closed geodesics and the fundamental group. Zbl 0476.58010
Ballmann, W.; Thorbergsson, G.; Ziller, W. |
|
1981
|
On the Dirichlet problem at infinity for manifolds of nonpositive curvature. Zbl 0661.53026
Ballmann, Werner |
|
1989
|
Discretization of positive harmonic functions on Riemannian manifolds and Martin boundary. Zbl 0885.53037
Ballmann, Werner; Ledrappier, François |
|
1996
|
Der Satz von Lusternik und Schnirelmann. Zbl 0394.53027
Ballmann, Werner |
|
1978
|
On the bottom of spectra under coverings. Zbl 1394.58012
Ballmann, Werner; Matthiesen, Henrik; Polymerakis, Panagiotis |
|
2018
|
The Poisson boundary for rank one manifolds and their cocompact lattices. Zbl 0801.53028
Ballmann, Werner; Ledrappier, François |
|
1994
|
On the number of closed geodesics on a compact Riemannian manifold. Zbl 0495.53042
Ballmann, Werner; Ziller, Wolfgang |
|
1982
|
Regularity and index theory for Dirac-Schrödinger systems with Lipschitz coefficients. Zbl 1145.35353
Ballmann, Werner; Brüning, Jochen; Carron, Gilles |
|
2008
|
Small eigenvalues of surfaces of finite type. Zbl 1401.35216
Ballmann, Werner; Matthiesen, Henrik; Mondal, Sugata |
|
2017
|
Nonpositively curved metrics on 2-polyhedra. Zbl 0843.53036
Ballmann, W.; Buyalo, S. |
|
1996
|
Diameter rigidity of spherical polyhedra. Zbl 0980.53045
Ballmann, Werner; Brin, Michael |
|
1999
|
On the differentiability of horocycles and horocycle foliations. Zbl 0609.53012
Ballmann, W.; Brin, M.; Burns, K. |
|
1987
|
Small eigenvalues of closed surfaces. Zbl 1341.53066
Ballmann, Werner; Matthiesen, Henrik; Mondal, Sugata |
|
2016
|
On groups acting on nonpositively curved cubical complexes. Zbl 0989.20029
Ballmann, Werner; Świątkowski, Jacek |
|
1999
|
On the spectral theory of manifolds with cusps. Zbl 1049.58026
Ballmann, Werner; Brüning, Jochen |
|
2001
|
Manifolds of non positive curvature. Zbl 0569.53021
Ballmann, W. |
|
1985
|
Eigenvalues and holonomy. Zbl 1018.58018
Ballmann, Werner; Brüning, Jochen; Carron, Gilles |
|
2003
|
Bottom of spectra and coverings. Zbl 1468.58008
Ballmann, Werner; Polymerakis, Panagiotis |
|
2020
|
Einige neue Resultate über Mannigfaltigkeiten nicht positiver Krümmung. Zbl 0421.53032
Ballmann, Werner |
|
1978
|
Rank rigidity of Euclidean polyhedra. Zbl 1041.53029
Ballmann, Werner; Brin, Michael |
|
2000
|
Geschlossene Geodätische auf Mannigfaltigkeiten mit unendlicher Fundamentalgruppe. (Closed geodesics on manifolds with infinite fundamental group). Zbl 0601.53040
Ballmann, Werner |
|
1986
|
An estimate for the measure theoretic entropy of geodesic flows. Zbl 0707.58036
Ballmann, Werner; Wojtkowski, Maciej P. |
|
1989
|
On the lengths of closed geodesics on convex surfaces. Zbl 0505.53020
Ballmann, Werner |
|
1983
|
On the ergodicity of geodesic flows. Zbl 0519.58036
Ballmann, W.; Brin, M. |
|
1982
|
Some existence theorems for closed geodesics. Zbl 0532.53034
Ballmann, W.; Thorbergsson, G.; Ziller, W. |
|
1983
|
On the existence of short closed geodesics and their stability properties. Zbl 0543.53038
Ballmann, W.; Thorbergsson, G.; Ziller, W. |
|
1983
|
On the analytic systole of Riemannian surfaces of finite type. Zbl 1390.30052
Ballmann, Werner; Matthiesen, Henrik; Mondal, Sugata |
|
2017
|
The Martin boundary of certain Hadamard manifolds. Zbl 0990.53028
Ballmann, Werner |
|
2000
|
Small eigenvalues of surfaces: old and new. Zbl 1431.35090
Ballmann, Werner; Matthiesen, Henrik; Mondal, Sugata |
|
2018
|
Index theorems on manifolds with straight ends. Zbl 1334.53023
Ballmann, Werner; Brüning, Jochen; Carron, Gilles |
|
2012
|
Bottom of spectra and coverings of orbifolds. Zbl 1486.58017
Ballmann, Werner; Polymerakis, Panagiotis |
|
2021
|
Doppelpunktfreie geschlossene Geodätische auf kompakten Flächen. Zbl 0367.58006
Ballmann, Werner |
|
1978
|
Equivariant discretizations of diffusions, random walks, and harmonic functions. Zbl 1492.60119
Ballmann, Werner; Polymerakis, Panagiotis |
|
2021
|
On the spectral theory of surfaces with cusps. Zbl 1036.58024
Ballmann, Werner; Brüning, Jochen |
|
2003
|
Manifolds of non-positive curvature. Zbl 0712.53019
Ballmann, W. |
|
1990
|
Bottom of spectra and amenability of coverings. Zbl 1444.58011
Ballmann, Werner; Matthiesen, Henrik; Polymerakis, Panagiotis |
|
2020
|
Introduction to geometry and topology. Translated from the German by Walker Stern. Zbl 1404.58001
Ballmann, Werner |
|
2018
|
On eta-functions for nilmanifolds. Zbl 1295.53025
Ballmann, Werner |
|
2014
|
A volume estimate for piecewise smooth metrics on simplicial complexes. Zbl 0939.53025
Ballmann, Werner |
|
1998
|
Arbeitstagung Bonn 2013. In memory of Friedrich Hirzebruch. Proceedings of the meeting, Bonn, Germany, May, 22–28, 2013. Zbl 1364.00032
|
|
2016
|
On the construction of isospectral manifolds. Zbl 1082.58031
Ballmann, Werner |
|
2003
|
Structure of manifolds of nonpositive sectional curvature. Zbl 0592.53035
Ballmann, Werner |
|
1986
|
Bottom of spectra and coverings of orbifolds. Zbl 1486.58017
Ballmann, Werner; Polymerakis, Panagiotis |
|
2021
|
Equivariant discretizations of diffusions, random walks, and harmonic functions. Zbl 1492.60119
Ballmann, Werner; Polymerakis, Panagiotis |
|
2021
|
Bottom of spectra and coverings. Zbl 1468.58008
Ballmann, Werner; Polymerakis, Panagiotis |
|
2020
|
Bottom of spectra and amenability of coverings. Zbl 1444.58011
Ballmann, Werner; Matthiesen, Henrik; Polymerakis, Panagiotis |
|
2020
|
On the bottom of spectra under coverings. Zbl 1394.58012
Ballmann, Werner; Matthiesen, Henrik; Polymerakis, Panagiotis |
|
2018
|
Small eigenvalues of surfaces: old and new. Zbl 1431.35090
Ballmann, Werner; Matthiesen, Henrik; Mondal, Sugata |
|
2018
|
Introduction to geometry and topology. Translated from the German by Walker Stern. Zbl 1404.58001
Ballmann, Werner |
|
2018
|
Small eigenvalues of surfaces of finite type. Zbl 1401.35216
Ballmann, Werner; Matthiesen, Henrik; Mondal, Sugata |
|
2017
|
On the analytic systole of Riemannian surfaces of finite type. Zbl 1390.30052
Ballmann, Werner; Matthiesen, Henrik; Mondal, Sugata |
|
2017
|
Guide to elliptic boundary value problems for Dirac-type operators. Zbl 1377.58022
Bär, Christian; Ballmann, Werner |
|
2016
|
Small eigenvalues of closed surfaces. Zbl 1341.53066
Ballmann, Werner; Matthiesen, Henrik; Mondal, Sugata |
|
2016
|
Arbeitstagung Bonn 2013. In memory of Friedrich Hirzebruch. Proceedings of the meeting, Bonn, Germany, May, 22–28, 2013. Zbl 1364.00032
|
|
2016
|
On eta-functions for nilmanifolds. Zbl 1295.53025
Ballmann, Werner |
|
2014
|
Boundary value problems for elliptic differential operators of first order. Zbl 1331.58022
Bär, Christian; Ballmann, Werner |
|
2012
|
Index theorems on manifolds with straight ends. Zbl 1334.53023
Ballmann, Werner; Brüning, Jochen; Carron, Gilles |
|
2012
|
Periodic rank one geodesics in Hadamard spaces. Zbl 1167.53034
Ballmann, Werner; Buyalo, Sergei |
|
2008
|
Regularity and index theory for Dirac-Schrödinger systems with Lipschitz coefficients. Zbl 1145.35353
Ballmann, Werner; Brüning, Jochen; Carron, Gilles |
|
2008
|
Lectures on Kähler manifolds. Zbl 1101.53042
Ballmann, Werner |
|
2006
|
Eigenvalues and holonomy. Zbl 1018.58018
Ballmann, Werner; Brüning, Jochen; Carron, Gilles |
|
2003
|
On the spectral theory of surfaces with cusps. Zbl 1036.58024
Ballmann, Werner; Brüning, Jochen |
|
2003
|
On the construction of isospectral manifolds. Zbl 1082.58031
Ballmann, Werner |
|
2003
|
Spaces of nonpositive curvature. Zbl 1031.53069
Ballmann, W. |
|
2001
|
On the spectral theory of manifolds with cusps. Zbl 1049.58026
Ballmann, Werner; Brüning, Jochen |
|
2001
|
Rank rigidity of Euclidean polyhedra. Zbl 1041.53029
Ballmann, Werner; Brin, Michael |
|
2000
|
The Martin boundary of certain Hadamard manifolds. Zbl 0990.53028
Ballmann, Werner |
|
2000
|
Diameter rigidity of spherical polyhedra. Zbl 0980.53045
Ballmann, Werner; Brin, Michael |
|
1999
|
On groups acting on nonpositively curved cubical complexes. Zbl 0989.20029
Ballmann, Werner; Świątkowski, Jacek |
|
1999
|
Amenable isometry groups of Hadamard spaces. Zbl 0913.53012
Adams, Scot; Ballmann, Werner |
|
1998
|
A volume estimate for piecewise smooth metrics on simplicial complexes. Zbl 0939.53025
Ballmann, Werner |
|
1998
|
On \(L^2\)-cohomology and property (T) for automorphism groups of polyhedral cell complexes. Zbl 0897.22007
Ballmann, W.; Świątkowski, J. |
|
1997
|
Discretization of positive harmonic functions on Riemannian manifolds and Martin boundary. Zbl 0885.53037
Ballmann, Werner; Ledrappier, François |
|
1996
|
Nonpositively curved metrics on 2-polyhedra. Zbl 0843.53036
Ballmann, W.; Buyalo, S. |
|
1996
|
Lectures on spaces of nonpositive curvature. With an appendix by Misha Brin: Ergodicity of geodesic flows. Zbl 0834.53003
Ballmann, Werner |
|
1995
|
Orbihedra of nonpositive curvature. Zbl 0866.53029
Ballmann, Werner; Brin, Michael |
|
1995
|
Polygonal complexes and combinatorial group theory. Zbl 0832.57002
Ballmann, W.; Brin, M. |
|
1994
|
The Poisson boundary for rank one manifolds and their cocompact lattices. Zbl 0801.53028
Ballmann, Werner; Ledrappier, François |
|
1994
|
Manifolds of non-positive curvature. Zbl 0712.53019
Ballmann, W. |
|
1990
|
On the Dirichlet problem at infinity for manifolds of nonpositive curvature. Zbl 0661.53026
Ballmann, Werner |
|
1989
|
An estimate for the measure theoretic entropy of geodesic flows. Zbl 0707.58036
Ballmann, Werner; Wojtkowski, Maciej P. |
|
1989
|
On surfaces with no conjugate points. Zbl 0592.53041
Ballmann, W.; Brin, M.; Burns, K. |
|
1987
|
Fundamental groups of manifolds of nonpositive curvature. Zbl 0701.53070
Ballmann, Werner; Eberlein, Patrick |
|
1987
|
On the differentiability of horocycles and horocycle foliations. Zbl 0609.53012
Ballmann, W.; Brin, M.; Burns, K. |
|
1987
|
Geschlossene Geodätische auf Mannigfaltigkeiten mit unendlicher Fundamentalgruppe. (Closed geodesics on manifolds with infinite fundamental group). Zbl 0601.53040
Ballmann, Werner |
|
1986
|
Structure of manifolds of nonpositive sectional curvature. Zbl 0592.53035
Ballmann, Werner |
|
1986
|
Manifolds of nonpositive curvature. Zbl 0591.53001
Ballmann, Werner; Gromov, Mikhael; Schroeder, Viktor |
|
1985
|
Nonpositively curved manifolds of higher rank. Zbl 0585.53031
Ballmann, Werner |
|
1985
|
Structure of manifolds of nonpositive curvature. I. Zbl 0589.53047
Ballmann, Werner; Brin, Misha; Eberlein, Patrick |
|
1985
|
Structure of manifolds of nonpositive curvature. II. Zbl 0598.53046
Ballmann, Werner; Brin, Misha; Spatzier, Ralf |
|
1985
|
Manifolds of non positive curvature. Zbl 0569.53021
Ballmann, W. |
|
1985
|
Existence of closed geodesics on positively curved manifolds. Zbl 0514.53044
Ballmann, W.; Thorbergsson, G.; Ziller, W. |
|
1983
|
On the lengths of closed geodesics on convex surfaces. Zbl 0505.53020
Ballmann, Werner |
|
1983
|
Some existence theorems for closed geodesics. Zbl 0532.53034
Ballmann, W.; Thorbergsson, G.; Ziller, W. |
|
1983
|
On the existence of short closed geodesics and their stability properties. Zbl 0543.53038
Ballmann, W.; Thorbergsson, G.; Ziller, W. |
|
1983
|
Closed geodesics on positively curved manifolds. Zbl 0495.58010
Ballmann, W.; Thorbergsson, G.; Ziller, W. |
|
1982
|
Axial isometries of manifolds of non-positive curvature. Zbl 0487.53039
Ballmann, Werner |
|
1982
|
On the number of closed geodesics on a compact Riemannian manifold. Zbl 0495.53042
Ballmann, Werner; Ziller, Wolfgang |
|
1982
|
On the ergodicity of geodesic flows. Zbl 0519.58036
Ballmann, W.; Brin, M. |
|
1982
|
Closed geodesics and the fundamental group. Zbl 0476.58010
Ballmann, W.; Thorbergsson, G.; Ziller, W. |
|
1981
|
Der Satz von Lusternik und Schnirelmann. Zbl 0394.53027
Ballmann, Werner |
|
1978
|
Einige neue Resultate über Mannigfaltigkeiten nicht positiver Krümmung. Zbl 0421.53032
Ballmann, Werner |
|
1978
|
Doppelpunktfreie geschlossene Geodätische auf kompakten Flächen. Zbl 0367.58006
Ballmann, Werner |
|
1978
|