Leningrad Geometric School
Alexandrov
Ленинградская геометрическая школа

Russian-German Geometry Meeting
dedicated to the 85th bithday of A.D. Alexandrov

Photo:  A.D. Alexandov
 and his wife S.M. Vladimirova. 1997

A.D. Alexandov and his wife S.M. Vladimirova. 1997

(Author of photo Elena Novikova)

Programme

September 22, Monday

9:00-10:00 Registration 10:00-10:45 Opening 11:00-11:45 Alexei Pogorelov. On the foundation of geometry 12:00-12:45 Hermann Karcher. Construction of embedded minimal surfaces
16:00-18:25 Sections


Section I


16:00-16:25 Christian Baer. Eigenvalues of he Dirac operator, collapse, and Willmore functional
16:40-17:05 Richard Bishop. Warped Products of Metric Spaces (joint with S. Alexander)
17:20-17:45 Urs Lang. Extendability of large-scale Lipschitz maps
18:00-18:25 Wolfgang Meyer. The Sphere Theorem in Riemannian Geometry


Section II


16:00-16:25 Yuri Borisov. Relaxing the a priori constrains on the fundamental theorem of space curves
16:40-17:05 Ernst Kuwert. Minimization of conformally invariant energies in homotopy classes
17:20-17:45 Judith Leder. Codazzi tensor of order three in Differential Geometry
18:00-18:25 Konrad Polthier. Discrete Geodesics and Numerics on Surfaces

Section III

16:00-16:25 Michael Babich. Cartanian Spaces of the Normal Projective Connections correspondent to the Painleve Equations and the Theory of invariants (joint with L.Bordag)
16:40-17:05 Anton Deitmar. Hopf and Lefschetz formulas for flows
17:20-17:45 Alexander Guts. A time machine and restoration of the Past

September 23, Tuesday

9:30-10:15 Uwe Abresch. Homogeneous spaces of strictly positive curvature
10:30-11:15 Valery Berestovsky. On and about Alexandrov's Spaces
11:30-12:15 Bernhard Leeb. Rigidity of symmetric spaces and buildings
16:00-18:25 Sections


Section I


16:00-16:25 Conrad Plaut. Geometries and covers of groups
16:40-17:05 Alexander Bobenko. Discrete Affine Spheres
17:20-17:45 Vadim Kaimanovich. Generalized Busemann functions and compactifications of symmetric spaces
18:00-18:25 Takashi Sakai. On Riemannian manifolds admitting a function whose gradient is of constant norm


Section II


16:00-16:25 Brian Bowditch. A topological characterization of hyperbolic groups
16:40-17:05 Jinichi Itoh. Riemannian metric with fractal cut locus
17:20-17:45 Alexander Borisenko. Total curvatures of convex hypersurfaces in the Hyperbolic space
18:00-18:25 Vladimir Vershinin. Configuration Spaces and Generalizations of Braids

Section III

16:00-16:25 Victor Alexandrov. Sufficient Conditions for Extension of N-th Order Flex of Polyhedra
16:40-17:05 Victor Gichev. Invariant orderings in simply connected Lie groups
17:20-17:45 Michael Babich (joint with L.Bordag). Cartanian Spaces of the Normal Projective Connections correspondent to the Painleve Equations and the Theory of Invariants
18:00-18:25 Vladimir Matveev. Symplectic nature of the Dini theorem
was as stend talk: Konstantin Salikhov. CE-resolving 2-polyhedra up to special ones

September 24, Wednesday


9:30-10:15 Idzhat Sabitov. A generalized Heron's formula and an algorithmic solution of basic problems of
the metric theory of polyhedrons
10:30-11:15 Juergen Jost. Generalized harmonic maps into Alexandrov spaces
11:30-12:15 Olga Ladyzhenskaya. On evolution of multidimensional surfaces with the curvatures dependent speed

14:00-18:00
Excursion over the sity (4 hours). The bus will be near the building where you will have lunch (Popova street, 39), at 14:00

18:00
banquet at the Euler Institute

September 25, Thursday


9:30-10:15 Victor Bangert. Stable Norm and Minimal Laminations
10:30-11:15 Bruce Kleiner. Geometric boundary of Hadamard spaces
11:30-12:15 Wolfgang Meyer. The Sphere Theorem in Riemannian Geometry

16:00-18:25 Sections

Section I


16:00-16:25 Francois Ledrappier. Stable foliations on abelian covers
16:40-17:05 Takashi Shioya (joint with T. Yamaguchi). Collapsing three-manifolds under a lower curvature bound
17:20-17:45 Andrei Bodrenko. ARG-deformations of surfaces in Riemannian space
18:00-18:25 Arkady Skopenkov. On the Deleted Product Criterion For Concordance of Link Maps in Rm

Section II


16:00-16:25 Alexey Bolsinov. Topology of Integrable Hamiltonian Systems
16:40-17:05 Christine Scharlach. Centroaffine geometry of surfaces in R4
17:20-17:45 Serguei Vodop'yanov. Metric structures and quasiconformal mappings
18:00-18:25 Alexandr Ivanov (joint with A.Tuzhilin. Geometry of planar linear trees and applications to minimal networks theory

Section III


16:00-16:25 Patrick Eberlein. Totally geodesic submanifolds of compact, 2-step nilmanifolds
16:40-17:05 Katrin Leschke. On isoparametric submanifolds of Euclidean spaces
17:20-17:45 Yaroslav Bazaikin. On odd-dimensional positively curved spaces
18:00-18:25 Victor Toponogov. The convex surface with principal curvatures connected by some equation

Photo: September, 27, 1997

In center of photo: Yu.G. Resetnyak, A.V. Pogorelov and A.A. Borisenko. 1997

(Author of photo Elena Novikova)

September 26, Friday


9:30-10:15 Ernst Heintze. Isoparametric Submanifold in Hilbert space
10:30-11:15 Stefan Mueller. Geometry and microstructure - flexibility and rigidity
11:30-12:15 Wilderich Tuschmann (joint with A. Petrunin and X. Rong). Collapsing and positive pinching

September 27, Saturday


9:30-10:15 Stephanie Alexander (joint with R. Bishop). Topology of Riemannian manifolds with cut locus of low degree
10:30-11:15 Ulrich Pinkall. Differential geometry of surfaces and quaternionic algebraic geometry

Photo

Yu.F. Borisov, A.K. Guts and A.D. Alexandrov. 1997

(Author of photo: Elena Novikova)


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