Characteristic free resolutions in Schur algebras
 
 
Description:  Using the Borel-Schur algebra, I construct explicit resolutions of Weyl modules for GL_n and of co-Specht modules. These resolutions provide an answer to the problem, posed in the 80's by A.Akin and D. A. Buchsbaum, of constructing finite explicit and universal resolutions of Weyl modules by direct sums of divided powers, and prove a conjecture of Boltje and Hartmann on resolutions of co-Specht modules.

This is joint work with I. Yudin.

Date:  2011-11-23
Start Time:   15:00
Speaker:  Ana Paula Santana (CMUC/Mat. FCTUC)
Institution:  -
Place:  Room 5.5
Research Groups: -Algebra and Combinatorics
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