-
作者:Eyssidieux, P
作者单位:Universite de Toulouse; Universite Toulouse III - Paul Sabatier; Centre National de la Recherche Scientifique (CNRS)
摘要:Let X be a smooth connected compact projective variety over C. We study the Shafarevich conjecture concerning holomorphic convexity along the lines of Kollaar's approach, when the fundamental group of X admits large finite dimensionnal representations. We prove that, given nis an element ofN, the topological covering space (X) over tilde (n) of a projective algebraic compact complex manifold X corresponding to the intersection of the kernels of all linear reductive representations of pi(1)(X) ...
-
作者:Kurano, K
作者单位:Meiji University
摘要:In the present paper, we define a notion of numerical equivalence on Chow groups or Grothendieck groups of Noetherian local rings, which is an analogue of that on smooth projective varieties. Under a mild condition, it is proved that the Chow group modulo numerical equivalence is a finite dimensional Q-vector space, as in the case of smooth projective varieties. Numerical equivalence on local rings is deeply related to that on smooth projective varieties. For example, if Grothendieck's standar...
-
作者:Browning, TD; Heath-Brown, DR
作者单位:University of Oxford
-
作者:Liu, Q; Lorenzini, D; Raynaud, M
作者单位:Universite de Bordeaux; Centre National de la Recherche Scientifique (CNRS); University System of Georgia; University of Georgia; Universite Paris Saclay
-
作者:Rodnianski, I; Schlag, W
作者单位:Princeton University; California Institute of Technology
摘要:In this paper we establish dispersive estimates for solutions to the linear Schrodinger equation in three dimensions (0.1) 1/ipartial derivative(t)psi - Deltapsi + Vpsi = 0 psi(s) = f where V(t,x) is a time-dependent potential that satisfies the conditions [GRAPHICS] Here c(0) is some small constant and V((tau) over cap, x) denotes the Fourier transform with respect to the first variable. We show that under these conditions (0.1) admits solutions psi(.) is an element of L-t(infinity)(L-x(2)(R-...
-
作者:Szenes, A; Vergne, M
作者单位:Budapest University of Technology & Economics; Institut Polytechnique de Paris; Ecole Polytechnique
-
作者:Kim, HH
作者单位:University of Toronto
-
作者:Diaconu, A
作者单位:Columbia University
摘要:Let L be a number field containing the r-th roots of unity. Starting with the Rankin-Selberg convolution of a metaplectic Eisenstein series on the r-fold cover of GL(2) with itself, we construct a Dirichlet series defined over L whose coefficients involve the r-th order twists of a fixed Hecke L-function. We then observe that a group of functional equations can be naturally associated with this construction. Combining this with the convexity theorem for holomorphic functions of several complex...
-
作者:Crawley-Boevey, W; Van den Bergh, M
作者单位:University of Leeds; Hasselt University
摘要:A conjecture of Kac states that the polynomial counting the number of absolutely indecomposable representations of a quiver over a finite field with given dimension vector has positive coefficients and furthermore that its constant term is equal to the multiplicity of the corresponding root in the associated Kac-Moody Lie algebra. In this paper we prove these conjectures for indivisible dimension vectors.
-
作者:Gorbounov, V; Malikov, F; Schechtman, V
作者单位:University of Kentucky; University of Southern California; Universite de Toulouse; Universite Toulouse III - Paul Sabatier