Cohomologie des algèbres de Krönecker générales

Belkacem Bendiffalah, Daniel Guin

The computation of the Hochschild cohomology $H{H}^{\ast }(T)=H^{\ast }(T,T)$ of a triangular algebra $T=\pmatrix{A&M\cr 0&B\cr}$ was performed in {\bf[BG2]}, by the means of a certain triangula…