共查询到20条相似文献,搜索用时 15 毫秒
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In one of our recent papers, the associative and the Lie algebras of Weyl typeA[D]=A⊗F[D] were defined and studied, whereA is a commutative associative algebra with an identity element over a field F of any characteristic, and F[D] is the polynomial algebra of a commutative derivation subalgebraD ofA. In the present paper, a class of the above associative and Lie algebrasA[D] with F being a field of characteristic 0,D consisting of locally finite but not locally nilpotent derivations ofA, are studied. The isomorphism classes and automorphism groups of these associative and Lie algebras are determined 相似文献
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Salvatore Siciliano 《代数通讯》2013,41(12):4513-4522
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林尚垣 《数学的实践与认识》2005,35(9):159-163
在量子环面[1]上构造一类非交换结合代数AQ-模M(a,b),我们还刻划了AQ-模的结构并揭示[2]一类商模序列:每个商模Mn(a)/Mn+1(a)都同构于M(a,0),每个商模的自同构群AutMn(a)/Mn+1(a)均与C*同构. 相似文献
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We study third-power associative division algebras A over a field 𝕂 of characteristic different from 2. Those algebras having dimension ≤2 are commutative. When 𝕂 is the field ? of real numbers, those algebras having dimension 4 are power-commutative in each of the following two cases:
A contains a central element;
A satisfies the additional identity (x, x3, x) = 0.
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H. Seferoglu 《Proceedings of the American Mathematical Society》2006,134(8):2457-2463
In this paper we present some generalization (at the same time a new and a short proof in the Banach algebra context) of the Weak Spectral Mapping Theorem (WSMT) for non-quasianalytic representations of one-parameter groups.
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Let k be a field of characteristic 0 and let k<X> be a free associative algebra with finite basis X. Let R=R(k,X) be the universal enveloping algebra of the square of Lie(X), regarded as a subalgebra of k<X> and called the Specht subalgebra of the free algebra. We prove that k<X> is a free (left) R-module, find sufficient conditions for some system of elements in k<X> to be a basis for this module, and obtain an explicit formula that allows us to calculate the R-coefficients of the elements of the free algebra over a special basis of symmetric monomials. 相似文献
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H. Seferoglu 《Mathematische Nachrichten》2007,280(8):924-931
Let T = {T (t)}t ∈? be a C0‐group on a Banach space X with generator A. Under what conditions the assumption σ (A) = {0} implies that A = 0? This is called “A = 0” problem. In this paper we present some results related to this problem. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim) 相似文献
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We obtain a necessary and sufficient condition for a given collection of elements to freely generate a free associative algebra. We present some necessary conditions for primitivity of an element of a free associative algebra of rank 2. 相似文献
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Suppose that F is a field of prime characteristic p and V p is the variety of associative algebras over F defined by the identities [[x, y], z] = 0 and x p = 0 if p > 2 and by the identities [[x, y], z] = 0 and x 4 = 0 if p = 2 (here [x, y] = xy ? yx). As is known, the free algebras of countable rank of the varieties V p contain non-finitely generated T-spaces. We prove that the varieties V p are minimal with respect to this property. 相似文献
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The graded Hecke algebra for a finite Weyl group is intimately related to the geometry of the Springer correspondence. A
construction of Drinfeld produces an analogue of a graded Hecke algebra for any finite subgroup of GL(V). This paper classifies all the algebras obtained by applying Drinfeld's construction to complex reflection groups. By giving
explicit (though nontrivial) isomorphisms, we show that the graded Hecke algebras for finite real reflection groups constructed
by Lusztig are all isomorphic to algebras obtained by Drinfeld's construction. The classification shows that there exist
algebras obtained from Drinfeld's construction which are not graded Hecke algebras as defined by Lusztig for real as well
as complex reflection groups.
Received: July 25, 2001 相似文献
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Teodor Banica 《Journal of Functional Analysis》2005,224(2):243-280
Associated to a finite graph X is its quantum automorphism group G. The main problem is to compute the Poincaré series of G, meaning the series f(z)=1+c1z+c2z2+? whose coefficients are multiplicities of 1 into tensor powers of the fundamental representation. In this paper we find a duality between certain quantum groups and planar algebras, which leads to a planar algebra formulation of the problem. Together with some other results, this gives f for all homogeneous graphs having 8 vertices or less. 相似文献
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Let (Γ,I) be the bound quiver of a cyclic quiver whose vertices correspond to the Abelian group Zd. In this paper, we list all indecomposable representations of (Γ,I) and give the conditions that those representations of them can be extended to representations of deformed preprojective algebra Πλ(Γ,I). It is shown that those representations given by extending indecomposable representations of (Γ,I) are all simple representations of Πλ(Γ,I). Therefore, it is concluded that all simple representa-tions of rest... 相似文献
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LetD be a division algebra of degree three over an algebraic number fieldK and let G = SLD. We prove that the normal subgroup structure of G(K) is given by the Platonov-Margulis conjecture. The proof uses the classification of finite simple groups. 相似文献