Hijazi - Hommage à Jean-Pierre Bourguignon 51:43 Samson Shatashvili - Integrability and Supersymmetry 58:34 Thibault Damour - 34 Gravitation relativiste et expérience 1:54:04 Xinyi Yuan, Hodge index theorem for adelic line bundles 1:14:52 Yiming Long, Multiple closed geodesics on spheres 41:...
We show that given a dominant morphism between two smooth varieties of the same dimension, the induced morphism between the formal neighborhoods of two arcs on these varieties is a closed embedding, of codimension given by the order of vanishing along the ramification subscheme....
Inseparable morphisms of algebraic surfaces We prove that no regular vector field exists on an algebraic K3 surface defined over an algebraically closed field of finite characteristic.Bibliography: 19 titles. AN Rudakov,?afarevi?, I R - Mathematics of the USSR-Izvestiya 被引量: 148发表: 1976年...
Suppose Γ and Σ are closed permutation groups on infinite sets C and W and ρ: Γ→Σ is a non-split, continuous epimorphism with finite kernel. Describe (for fixed Σ) the possibilities for ρ. Here, we consider the case where ρ arises from a finite cover π: C → W. We give...
The full version of the theorem allows one to replace by an algebraic variety over any algebraically closed field, and for to be an morphism from the algebraic variety to itself, but for simplicity I will just discuss the above special case. This theorem is not at all obvious; it is not...
Mathlib.AlgebraicGeometry.Morphisms.Basic Mathlib.AlgebraicGeometry.Morphisms.IsIso Mathlib.AlgebraicGeometry.Modules.Presheaf Mathlib.AlgebraicGeometry.Morphisms.UnderlyingMap Mathlib.AlgebraicGeometry.Morphisms.QuasiCompact Mathlib.AlgebraicGeometry.Morphisms.ClosedImmersion Mathlib.AlgebraicGeometry.Morphisms....
is a pair T = (Σ, I) where Σ is a signature and I a class of Σ-interpretations, the models of T , that is closed under variable reassignment (i.e., every Σ-interpretation that differs from one in I only for how it interprets the variables is also in I) and iso- morphism....
LetXbe a smooth projective curve of genusg, defined over an algebraically closed fieldk, and letGbe a connected reductive group overk. We say that aG-torsor is essentially finite if it admits a reduction to a finite group, generalising the notion of essentially finite vector bundles to arbitr...
Soc.Locally finite and locally nilpotent derivations with applications to polynomial flows and polynomial morphisms - Essen - 1992 () Citation Context ...Z7])... AVD Essen - 《Proc.amer.math.soc》 被引量: 46发表: 1992年 Some Open Problems on Locally Finite or Locally Nilpotent Derivations ...
Moreover, the orbit of e under L (or R) consists of the evaluation morphisms at all points of G. Therefore both [Math Processing Error] and [Math Processing Error] separate points in [Math Processing Error], so that [Math Processing Error] by the Urysohn lemma. A version of [17, ...