Title of Paper: Extensions of Weyl and Schur functors

Author: Marcin Chalupnik

Abstract: We use here the Schur-De-Rham complex to extend
calculations of the Ext-groups between twisted Weyl and Schur
functors initiated in the paper ``Extensions of strict polynomial
functors''. The main result is a full calculation of those groups
in the case of a pair of diagrams which can be obtained from
diagrams of the same weights by the operation F described in
``Schur-De-Rham complex and its cohomology''.