Vol. 233 No. 3 2000
Contents L.J. Billera, R. Ehrenborg:
Y. Long:
P. Aiena, M. Gonzalez:
A. Ben Abdesselem, P. Cherrier:
J. Valles:
C. Greither:
E. Casadio Tarabusi, A. lannuzzi, S. Trapani:
M. de Longueville:
R. Kuwabara:
S. Ariki, A. Mathas:
Monotonicity of the cd-index for polytopes 421 Multiple periodic points of the Poincare map
of Lagrangian systems on tori 443 Examples of improjective operators 471
Estimation of Ricci tensor
on certain Fano manifolds 481
Nombre maximal d'hyperplans instablespour un fibre de Steiner 507 Some cases of Brumer's conjecture
for abelian CM extensions of totally real fields 5 1 5 Globalizations, fiber bundles, and envelopes
of holomorphy 535 The ring structure on the cohomology
of coordinate subspace arrangements 553 Difference spectrum of the Schrodinger operator
in a magnetic field 579 The number of simple modules of the Hecke algebras
of type G(r, 1, n) 601
