1999

最新文章

• Localization of virtual classes AI翻译
  作者：Graber, T; Pandharipande, R
  作者单位：Harvard University; California Institute of Technology
• On injective homomorphisms between Teichmuller modular groups I AI翻译
  作者：Ivanov, NV; McCarthy, JD
  作者单位：Michigan State University
  摘要：In this paper and its sequel, we prove that injective homomorphisms between Teichmuller modular groups of compact orientable surfaces are necessarily isomorphisms, if an appropriately measured size of the surfaces in question differs by at most one. In particular, we establish the co-Hopfian property for modular groups of surfaces of positive genus.
• Indivisibility of class numbers of imaginary quadratic fields and orders of Tate-Shafarevich groups of elliptic curves with complex multiplication AI翻译
  作者：Kohnen, W; Ono, K
  作者单位：Ruprecht Karls University Heidelberg; Pennsylvania Commonwealth System of Higher Education (PCSHE); Pennsylvania State University; Pennsylvania State University - University Park
• Schubert cells and representation theory AI翻译
  作者：Casian, L; Stanton, RJ
  作者单位：University System of Ohio; Ohio State University
• Holomorphic maps from rational homogeneous spaces of Picard number 1 onto projective manifolds AI翻译
  作者：Hwang, JM; Mok, N
  作者单位：Seoul National University (SNU); University of Hong Kong
• Resonances, radiation damping and instability in Hamiltonian nonlinear wave equations AI翻译
  作者：Soffer, A; Weinstein, MI
  作者单位：Rutgers University System; Rutgers University New Brunswick; University of Michigan System; University of Michigan
  摘要：We consider a class of nonlinear Klein-Gordon equations which are Hamiltonian and are perturbations of linear dispersive equations. The unperturbed dynamical system has a bound state, a spatially localized and time periodic solution. We show that, for generic nonlinear Hamiltonian perturbations, all small amplitude solutions decay to zero as time tends to infinity at an anomalously slow rate. In particular, spatially localized and time-periodic solutions of the linear problem are destroyed by ...
• Specialization of integral dependence for modules AI翻译
  作者：Gaffney, T; Kleiman, SL
  作者单位：Northeastern University; Massachusetts Institute of Technology (MIT)
  摘要：We establish the principle of specialization of integral dependence for submodules of finite colength of free modules, as part of the general algebraic-geometric theory of the Buchsbaum-Rim multiplicity. Then we apply the principle to the study of equisingularity of ICIS germs, obtaining results for Whitney's Condition A and Them's Condition A(f). Notably, we describe these equisingularity conditions for analytic families in terms of various numerical invariants, which, for the most part, depe...
• Relative regulators of number fields AI翻译
  作者：Friedman, E; Skoruppa, NP
  作者单位：Universidad de Chile; Universite de Bordeaux
• On blowup formulae for the S-duality conjecture of Vafa and Witten AI翻译
  作者：Li, WP; Qin, ZB
  作者单位：Hong Kong University of Science & Technology; Oklahoma State University System; Oklahoma State University - Stillwater
• The variety of circular complexes and F-splitting AI翻译
  作者：Mehta, VB; Trivedi, V
  作者单位：Tata Institute of Fundamental Research (TIFR)