“…Drensky showed in [8] that the cocharacter sequence of A is Young derived, whenever A has a unit. We record that theorem by way of reminding the reader of the definition of Young derived sequences.…”
Section: Codimensions Of P I Algebras Satisfying Capelli Identitiesmentioning
Abstract. Let A be a p. i. algebra with 1 in characteristic zero, satisfying a Capelli identity. Then the cocharacter sequence c n (A) is asymptotic to a function of the form an g n , where ∈ N and g ∈ Z.
“…Drensky showed in [8] that the cocharacter sequence of A is Young derived, whenever A has a unit. We record that theorem by way of reminding the reader of the definition of Young derived sequences.…”
Section: Codimensions Of P I Algebras Satisfying Capelli Identitiesmentioning
Abstract. Let A be a p. i. algebra with 1 in characteristic zero, satisfying a Capelli identity. Then the cocharacter sequence c n (A) is asymptotic to a function of the form an g n , where ∈ N and g ∈ Z.
“…The multiplicities of the cocharacters of M n (F ), C, T are explicitly found for n = 2 only, by Formanek [9] for M 2 (F ), C, T , and, with different methods, by Drensky [4] for M 2 (F ), see also Procesi [14]. In particular,…”
Abstract. We find explicitly the multiplicities in the (mixed) trace cocharacter sequence of two 3 × 3 matrices over a field of characteristic 0 and show that asymptotically they behave as polynomials of seventh degree. As a consequence we obtain also the multiplicities of certain irreducible characters in the cocharacter sequence of the polynomial identities of 3 × 3 matrices.
“…Then one considers in a natural way the S n -character of P n (A), denoted ψ n (A), which is called the n-th proper cocharacter of A. A result of Drensky [6,Theorem 2.6] gives the precise relation between the ordinary cocharacters and the proper cocharacters of any PI-algebra A: if ψ p (A) = λ p m λ χ λ , where χ λ is the irreducible S n -character associated to the partition λ n, then…”
Section: Pi-exponent D ≥ 2 If Exp(a) = D and Exp(b) < D For All Algebmentioning
confidence: 99%
“…The multiplicities in the cocharacter sequence of M 2 (F ) were computed in [6], [9], [23]. An inspection of these multiplicities shows that for all n, max µ n m µ = m λ for some λ = (λ 1 , .…”
Section: Lemma 34 Mlt(m 2 (F )) =mentioning
confidence: 99%
“…The sequence c n (A) or even its asymptotic behaviour has only been computed for some special algebras [6], [9], [18], [19], [23], [25]; it turns out that it is in general a very hard problem to determine the precise asymptotic behaviour of such a sequence.…”
Abstract. We consider associative PI-algebras over a field of characteristic zero. We study the asymptotic behavior of the sequence of multiplicities of the cocharacters for some significant classes of algebras. We also give a characterization of finitely generated algebras for which this behavior is linear or quadratic.
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