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math.RA2025
Skew Laurent Series and General Cyclic Convolutional Codes
José Gómez-Torrecillas, José Patricio Sánchez-Hernández
Convolutional codes were originally conceived as vector subspaces of a finite-dimensional vector space over a field of Laurent series having a polynomial basis. Piret and Roos mode…
math.RA2019
Biseparable extensions are not necessarily Frobenius
José Gómez-Torrecillas, F. J. Lobillo, Gabriel Navarro +1
We give necessary and sufficient conditions on an Ore extension , where is a finite dimensional algebra over a field , for being a Frobenius extension ove…