Exact asymptotic behaviour of the codimensions of some P.I. algebras |
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Authors: | Vesselin Drensky Amitai Regev |
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Institution: | (1) Institute of Mathematics, Bulgarian Academy of Sciences, Akad. G.Bonchev Str., Block 8, 1113 Sofia, Bulgaria;(2) Department of Mathematics, The Pennsylvania State University, 16802 University Park, PA, USA;(3) Department of Theoretical Mathematics, The Weizmann Institute of Science, 76100 Rehovot, Israel |
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Abstract: | Letc
n
(A) denote the codimensions of a P.I. algebraA, and assumec
n
(A) has a polynomial growth:
. Then, necessarily,q∈ℚ D3]. If 1∈A, we show that
, wheree=2.71…. In the non-unitary case, for any 0<q∈ℚ, we constructA, with a suitablek, such that
.
In memory of S. A. Amitsur, our teacher and friend
Partially supported by Grant MM404/94 of Ministry of Education and Science, Bulgaria and by a Bulgarian-American Grant of
NSF.
Partially supported by NSF grant DMS-9101488. |
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Keywords: | |
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