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math.RA2007
Detecting Infinitely Many Semisimple Representations in a Fixed Finite Dimension
Edward S. Letzter
Let be a positive integer, and let be a field (of arbitrary characteristic) accessible to symbolic computation. We describe an algorithmic test for determining whether or n…
math.QA2007
Semiclassical Limits of Quantum Affine Spaces
K. R. Goodearl, E. S. Letzter
Semiclassical limits of generic multiparameter quantized coordinate rings A = O_q(k^n) of affine spaces are constructed and related to A, for k an algebraically closed field of cha…
math.RA2007
Noetherian Skew Inverse Power Series Rings
Edward S. Letzter, Linhong Wang
We study skew inverse power series extensions R[[y^{-1};tau,delta]], where R is a noetherian ring equipped with an automorphism tau and a tau-derivation delta. We find that these e…