搜索结果: 1-15 共查到“代数学 Being Rational”相关记录23条 . 查询时间(0.026 秒)
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Number of rational points of difference varieties in finite difference fields
有限差分域 差分簇 有理点数
2023/4/13
A difference field is a field with a distinguished automorphism. Automorphisms of a finite field are powers of the Frobenius map. In this talk, I will discuss how to estimate the number of rational po...
Caporaso and Harris derive recursive formulas counting nodal plane
curves of degree d and geometric genus g in the plane (through the appropriate number of xed
general points). We rephrase their ar...
Category O for Rational Cherednik Algebras H_{t,c}(GL_2(F_p),h) in Characteristic p
Rational Cherednik Algebras Characteristic p Representation Theory
2011/9/23
Abstract: In this paper we describe the characters of irreducible objects in category O for the rational Cherednik algebra associated to GL_2(F_p) over an algebraically closed field of positive charac...
Representations of Rational Cherednik Algebras in Positive Characteristic
Rational Cherednik Algebras Positive Characteristic Representation Theory
2011/8/24
Abstract: We study rational Cherednik algebras over an algebraically closed field of positive characteristic. We first prove several general results about category O, and then focus on rational Chered...
Rational subsets of groups
Free groups inverse automata Stallings automata rational subsets
2011/3/2
Over the years, finite automata have been used effectively in the theory of infinite
groups to represent rational subsets.
On the $p$-adic closure of a subgroup of rational points on an Abelian variety
$p$-adic closure subgroup of rational points Abelian variety
2011/2/24
In 2007, B. Poonen (unpublished) studied the p{adic closure of a subgroup of rational points on a commutative algebraic group. More recently, J. Bellache asked the same question for the special case...
Category O for the rational Cherednik algebra associated to the complex reflection group G_12
the rational Cherednik algebra the complex reflection group G_12
2010/11/23
In this paper, we describe the irreducible representations in category O of the rational Cherednik algebra H_c(G_12,h) associated to the complex reflection group G_12 with reflection representation h ...
On the distribution of exponential functionals for Levy processes with jumps of rational transform
exponential functionals Levy processes rational transform
2010/11/22
We derive explicit formulas for the Mellin transform and the distribution of the exponential functional for Levy processes with rational Laplace exponent. This extends recent results by Cai and Kou o...
Dynamics of a rational multi-parameter second order difference equation with cubic numerator and quadratic monomial denominator
Dynamics rational multi-parameter second order difference equation
2010/11/22
The asymptotic behavior (such as convergence to an equilibrium, convergence to a 2-cycle, and divergence to infinity) of solutions of the following multi-parameter, rational, second order difference e...
A rational Arnoldi approach for ill-conditioned linear systems
Ill-conditioned linear systems Arnoldi algorithm Matrix function Tikhonov regularization
2010/12/14
For the solution of full-rank ill-posed linear systems a new approach based on the Arnoldi
algorithm is presented. Working with regularized systems, the method theoretically recon-
structs the true ...
Lee-Yang zeros for DHL and 2D rational dynamics, I. Foliation of the physical cylinder
Lee-Yang zeros DHL D rational dynamics I. Foliation of the physical cylinder
2010/12/10
In a classical work of the 1950’s, Lee and Yang proved that thezeros of the partition functions of a ferromagnetic Ising models always lie on the unit circle. Distribution of these zeros is physically...
Computer Generated Images for Quadratic Rational Maps with a Periodic Critical Point
rational map complex dynamics plane curve singularities geometric
2010/12/8
We describe an algorithm for distinguishing hyperbolic compo-nents in the parameter space of quadratic rational maps with a periodic critical point. We then illustrate computer images of the hyperboli...
Cox rings of rational complexity one T-varieties
Cox ring branched coverings torus actions
2010/11/29
Let X be a Mori dream space together with an effective torus action of complexity one. In this note, we construct a polyhedral divisor DCox on a suitable finite covering of P1 which corresponds to the...
Finite group actions, rational fixed points and weak Néron models
Finite group actions rational fixed points weak Néron models
2010/12/1
If G is a finite ℓ-group acting on an affine space An over a finite field K of cardinality prime to ℓ, Serre [29] shows that there exists a rational fixed point. We generalize this to the ...
Blocks of restricted rational Cherednik algebras for $G(m,d,n)$
Blocks restricted rational Cherednik algebras
2010/12/8
We study the Dunkl-Opdam subalgebra of the rational Cherednik algebra for wreath products at t = 0, and use this to describe the block decomposition of restricted rational Cherednik
algebras for G(m,...