کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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6414164 | 1630441 | 2017 | 24 صفحه PDF | دانلود رایگان |
In this paper, we study the exponential growth of â-graded identities of a finite dimensional â-superalgebra A over a field F of characteristic zero. If a â-superalgebra A satisfies a non-trivial identity, then the sequence {cngri(A)}nâ¥1 of â-graded codimensions of A is exponentially bounded and so we study the â-graded exponent expgri(A):=limnâââ¡cngri(A)n of A. We show that expgri(A)=dimFâ¡(A) if and only if A is a simple â-superalgebra and F is the symmetric even center of A. Also, we characterize the finite dimensional â-superalgebras such that expgri(A)â¤1 by the exclusion of four â-superalgebras from vargri(A) and construct eleven â-superalgebras Ei,i=1,â¦,11, with the following property: expgri(A)>2 if and only if Eiâvargri(A), for some iâ{1,â¦,11}. As a consequence, we characterize the finite dimensional â-superalgebras A such that expgri(A)=2.
Journal: Journal of Algebra - Volume 473, 1 March 2017, Pages 283-306