Geodesic

Tome 54 (1999) no. 1

Sommaire

Sergei Petrovich Novikov (on his 60th birthday)
p. 1-7
Cohomology rings for smooth maps
p. 9-19
The geometry of stability regions in Novikov's problem on the semiclassical motion of an electron
p. 21-59
Moduli of Riemann surfaces, Hurwitz-type spaces, and their superanalogues
p. 61-117
Simple homotopy type of the Novikov complex and the Lefschetz $\zeta$-function of a~gradient flow
p. 119-169
Rigidity for groups with radical, cohomology of finite groups, and arithmeticity problems
p. 171-179
Anomalous transport in quasi-periodic media
p. 181-208
Signature in terms of Novikov numbers
p. 209-212
Wess--Zumino--Witten--Novikov theory, Knizhnik--Zamolodchikov equations, and Krichever--Novikov algebras
p. 213-249
A~spherical code
p. 251-253
Formalization of the notion of a ``number system''
p. 254-255
On the extension of compact-valued maps
p. 256-257
Discrete Lagrangian systems on graphs. Symplectic-topological properties
p. 258-259
Birationally rigid varieties with a~sheaf of Fano hypersurfaces
p. 260-261
On a~property of the classical zeta-function associated with the Riemann hypothesis
p. 262-263
A~direct geometric description of the $n$-dimensional Voronoi parallelohedra of second type
p. 264-265
Singular points of second-order differential equations: solutions with logarithmic terms
p. 266-268
The edge rotation group of a~composite of planar trees and wreath products of groups
p. 269-271
Sergei Petrovich Novikov (photo)
Meetings of the St.~Petersburg Mathematical Society