Abstract
We give a family of pairs of Weyl modules for the q-Schur algebras for which the corresponding homomorphism space is at least 2-dimensional. Using this result we show that for any field F and any quantum characteristic, there exist arbitrarily large homomorphism spaces between pairs of Weyl modules.
Original language | English |
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Pages (from-to) | 87-96 |
Number of pages | 10 |
Journal | Journal of Pure and Applied Algebra |
Volume | 217 |
Issue number | 1 |
Early online date | 23 May 2012 |
DOIs | |
Publication status | Published - Jan 2013 |