9 M ay 2 00 0 On W lodarczyk ’ s Embedding Theorem
نویسنده
چکیده
We prove the following version of W lodarczyk’s Embedding Theorem: Every normal complex algebraic C∗-variety Y admits an equivariant closed embedding into a toric prevariety X on which C∗ acts as a one-parameter-subgroup of the big torus T ⊂ X. If Y is Q-factorial, then X may be chosen to be simplicial and of affine intersection.
منابع مشابه
2 9 M ay 2 00 4 A refined version of the Siegel - Shidlovskii theorem
Using Y.André's result on differential equations staisfied by E-functions, we derive an improved version of the Siegel-Shidlovskii theorem. It gives a complete characterisation of algebraic relations over the algebraic numbers between values of E-functions at any non-zero algebraic point.
متن کامل1 5 M ay 2 00 1 Exact diagonalization of the S = 1 / 2 XY ferromagnet on finite bcc lattices to estimate T = 0 properties on the infinite lattice
In this paper finite bcc lattices are defined by a triple of vectors in two different ways upper triangular lattice form and compact form. In Appendix A are lists of some 260 distinct and useful bcc lattices of 9 to 32 vertices. The energy and magnetization of the S = 1/2 XY ferromagnet have been computed on these bcc lattices in the lowest states for Sz = 0, 1/2, 1 and 3/2. These data are stud...
متن کاملar X iv : 0 90 5 . 25 85 v 1 [ m at h . C O ] 1 5 M ay 2 00 9 CHARACTERISTIC POINTS OF RECURSIVE SYSTEMS
Characteristic points have been a primary tool in the study of a generating function defined by a single recursive equation. We investigate the proper way to adapt this tool when working with multi-equation recursive systems.
متن کاملTheta Lifting for Some Cohomologicaly Induced Representations
— In his paper [14], Jian-Shu Li proved that a certain kind of cohomological representations of U(a, b) is automorphic. In this paper, this result is generalized to a more general class of cohomological representations of this group. It comes from the fact that these cohomological representations are the image by the theta correspondance of some representations obtained by cohomological inducti...
متن کاملM ay 2 00 7 Remarks on the existence of bilaterally symmetric extremal
The study of extremal Kähler metric is initiated by the seminar work of Calabi [4], [5]. Let (M, [ω]) be a compact Kähler manifold with fixed Kähler class [ω]. The extremal Kähler metric is the critical point of the Calabi energy C(g) for any Kähler metrics g in the fixed Kähler class [ω], C(g) = M s 2 dµ, where s is the scalar curvature of g. The extremal condition asserts that ¯ ∂∇s = 0. In o...
متن کامل