Zobrazeno 1 - 10
of 27
pro vyhledávání: '"14Lxx"'
Autor:
Dolgachev, Igor
After recalling some basic facts about F-wound commutative unipotent algebraic groups over an imperfect field F we study their regular integral models over Dedekind schemes of positive characteristic and compute the group of isomorphisms classes of t
Externí odkaz:
http://arxiv.org/abs/2105.06425
Autor:
Duff, Timothy, Ruddy, Michael
We apply numerical algebraic geometry to the invariant-theoretic problem of detecting symmetries between two plane algebraic curves. We describe an efficient equality test which determines, with "probability-one", whether or not two rational maps hav
Externí odkaz:
http://arxiv.org/abs/2005.04783
Autor:
Alkauskas, Giedrius
Let $X\in\mathbb{R}^{n}$. For $\phi:\mathbb{R}^{n}\mapsto\mathbb{R}^{n}$ and $t\in\mathbb{R}$, we put $\phi^{t}=t^{-1}\phi(Xt)$. A projective flow is a solution to the projective translation equation $\phi^{t+s}=\phi^{t}\circ\phi^{s}$, $t,s\in\mathbb
Externí odkaz:
http://arxiv.org/abs/1606.05772
Autor:
Yang, Zhongwei
Class polynomials attached to affine Hecke algebras were first introduced by X.~He in \cite{He1}. They play an important role in the study of affine Deligne-Lusztig varieties. Motivated by \cite{He2}, we compute the class polynomials attached to an a
Externí odkaz:
http://arxiv.org/abs/1409.4670
Autor:
Ngo, Nham V.
Let $G$ be a semisimple algebraic group defined over an algebraically closed field of characteristic 0 and $P$ be a parabolic subgroup of $G$. Let $M$ be a $P$-module and $V$ be a $P$-stable closed subvariety of $M$. We show in this paper that if the
Externí odkaz:
http://arxiv.org/abs/1309.7481
Autor:
Kannan, S. Senthamarai
In this paper, we prove that for any semisimple simply connected algebraic group $G$, for any regular dominant character $\lambda$ of a maximal torus $T$ of $G$ and for any element $\tau$ in the Weyl group $W$, the character $e^{\rho}\cdot char(H^{0}
Externí odkaz:
http://arxiv.org/abs/1211.3542
Autor:
Rubei, Elena
We study the stability of some homogeneous bundles on P^3 by using their representations of the quiver associated to the homgeneous bundles on P^3. In particular we show that homogeneous bundles on P^3 whose support of the quiver representation is a
Externí odkaz:
http://arxiv.org/abs/0712.3031
Autor:
Kannan, S. S., Sardar, Pranab
We give a stratification of the GIT quotient of the Grassmannian $G_{2,n}$ modulo the normaliser of a maximal torus of $SL_{n}(k)$ with respect to the ample generator of the Picard group of $G_{2,n}$. We also prove that the flag variety $GL_{n}(k)/B_
Externí odkaz:
http://arxiv.org/abs/0708.2138
Autor:
Ottaviani, Giorgio, Rubei, Elena
In this paper we characterize minimal free resolutions of homogeneous bundles on P^2. Besides we study stability and simplicity of homogeneous bundles on P^2 by means of their minimal free resolutions; in particular we give a criterion to see when a
Externí odkaz:
http://arxiv.org/abs/math/0401405
Autor:
Kostant, Bertram
We give a branching law for subgroups fixed by an involution. As an application we give a generalization of the Cartan-Helgason theorem and a noncompact analogue of the Borel-Weil theorem.
Comment: 60 pages, plain tex
Comment: 60 pages, plain tex
Externí odkaz:
http://arxiv.org/abs/math/0205283