Annals of Mathematics

最新文章

• THE E(2, A) SECTIONS OF SL(2, A) AI翻译
  作者：COSTA, DL; KELLER, GE
• SIEGEL THEOREM IN THE COMPACT CASE AI翻译
  作者：VOJTA, P
• CUSPS ARE DENSE AI翻译
  作者：MCMULLEN, C
  摘要：We show cusps are dense in Bers' boundary for Teichmuller space. The proof rests on an estimate for the algebraic effect of a unit quasiconformal deformation supported in the thin part of a hyperbolic Riemann surface.
• ON THE BASE SPACE OF A SEMI-UNIVERSAL DEFORMATION OF RATIONAL QUADRUPLE POINTS AI翻译
  作者：DEJONG, T; VANSTRATEN, D
• STRATIFIED SYMPLECTIC SPACES AND REDUCTION AI翻译
  作者：SJAMAAR, R; LERMAN, E
  摘要：Let (M, omega) be a Hamiltonian G-space with proper momentum map J: M --> g*. It is well-known that if zero is a regular value of J and G acts freely on the level set J-1(0), then the reduced space M0 : = J-1(0)/G is a symplectic manifold. We show that if the regularity assumptions are dropped, the space M0 is a union of symplectic manifolds; i.e., it is a stratified symplectic space. Arms et al. [2] proved that M0 possesses a natural Poisson bracket. Using their result, we study Hamiltonian d...
• RATIONAL SUBGROUPS OF BIAUTOMATIC GROUPS AI翻译
  作者：GERSTEN, SM; SHORT, HB
  摘要：Centralizers of finite subsets in biautomatic groups are themselves biautomatic. Every polycyclic subgroup of a biautomatic group is abelian by finite.
• SZEGO EXTREMUM PROBLEM ON THE UNIT-CIRCLE AI翻译
  作者：MATE, A; NEVAI, P; TOTIK, V
  摘要：It is shown that the Christoffel functions arising from the Szego extremum problem associated with a finite positive Borel measure on the interval [-pi, pi] satisfy [GRAPHICS] whenever mu belongs to the Szego class; that is, log-mu' element-of L1. Some implications of this result are discussed.
• THE CLASSIFICATION OF THE SIMPLE MODULAR LIE-ALGEBRAS .3. SOLUTION OF THE CLASSICAL CASE AI翻译
  作者：STRADE, H
  摘要：We investigate the structure of simple modular Lie algebras over an algebraically closed field of characteristic p > 7. If the distinguished subalgebra Q(L, T) with respect to an optimal torus T in some p-envelope L(p) of L equals L, then either L has a two-section of type H(2; 1; PHI(tau))(1) or L is of classical type.
• A BOUNDARY HARNACK PRINCIPLE IN TWISTED HOLDER DOMAINS AI翻译
  作者：BASS, RF; BURDZY, K
  摘要：The boundary Harnack principle for the ratio of positive harmonic functions is shown to hold in twisted Holder domains of order alpha for alpha element-of (1/2, 1]. For each alpha-element-of (0, 1/2), there exists a twisted Holder domain of order alpha for which the boundary Harnack principle fails. Extensions are given to L-harmonic functions for uniformly elliptic operators L in divergence form.
• SINGULAR SPACES, CHARACTERISTIC CLASSES, AND INTERSECTION HOMOLOGY AI翻译
  作者：CAPPELL, SE; SHANESON, JL