08 Yuki Kanabuko - Inequalities defining polyhedral realizations of affine types an 43:37 Rinat Kedem - Quantum relativistic Toda Hamiltonians associated with a family of 39:07 Marcus Khuri - Spacetime harmonic functions and applications 46:22 Sven Hirsch - Stability of Llarull’s theorem in all...
In this article, we consider finite G-equivariant morphisms F:X→Y of irreducible affine G-varieties. First we determine under which conditions on Y the induced map F G:X//G→Y//G of quotient varieties is also finite. This result is reformulated in terms of kernels of derivations on k...
If f is a morphism from probability X to Y, and Δ X/Y: X → XxYX, x → (x, x) is a closed immersion, then X is said to be separable on Y; if Y=SpecR, then X is said to be separable. The affine f: X → Y is called finite, if there is an affine open cover {Y ...
Mathlib.AlgebraicGeometry.Morphisms.Affine Mathlib.Analysis.Complex.CauchyIntegral Mathlib.Topology.Metrizable.Urysohn Mathlib.LinearAlgebra.Semisimple Mathlib.Order.Filter.Cofinite Mathlib.FieldTheory.AbsoluteGaloisGroup Mathlib.LinearAlgebra.RootSystem.Basic Mathlib.Analysis.InnerProductSpace.JointEigenspace ...
Then e∈X. Moreover, the orbit of e under L (or R) consists of the evaluation morphisms at all points of G. Therefore both LGe and RGe separate points in A, so that LGe‾=RGe‾=X by the Urysohn lemma. A version of [17, Proposition 3.9] now implies that the point e is ...
Locally finite and locally nilpotent derivations with applications to polynomial flows and polynomial morphisms 喜欢 0 阅读量: 30 作者: AVD Essen 摘要: We give a very simple proof of the fact that the Lorenz equations and the Maxwell-Bloch equations do not have a polynomial flow. We also ...
A ringed finite space is a ringed space whose underlying topological space is finite. The category of ringed finite spaces contains, fully faithfully, the category of finite topological spaces and the category of affine schemes. Any ringed space, endowed with a finite open covering, produces a ri...
We show that the morphisms from the braid group with n strands in the mapping class group of a surface with a possible non empty boundary, assuming that its genus is smaller or equal to n/2 are either cyclic morphisms (their images are c... F Castel - 《Mathematics》 被引量: 13发表...
is because an FSM's memory is limited by the number of states it has. A finite-state machine has the same computational power as a Turing machine that is restricted such that its head may only perform 'read' operations, and always has to move from left to right. FSMs are studied in ...
In this paper, we show that the ideal of finite elements is exactly the kernel of the natural morphism between%these two Toeplitz C~*-algebras. When G is countable, we show that if the direct sum of K-groups K_0(T~(G_+) direct+ K_1(T~(G_+)) approx= Z, then K_0(T~(G_...