What if there are some conditions on the B_ij?like some of them must be zero?

for example let A be the matrix with rows (x.0) and (0,y) and let v=(ay,bx)^t, I know that the answer is a=b=0, but how can I compute with maple?

thank you

What if there are some conditions on the B_ij?like some of them must be zero?

for example let A be the matrix with rows (x.0) and (0,y) and let v=(ay,bx)^t, I know that the answer is a=b=0, but how can I compute with maple?

thank you

@hirnyk In my case I have a n^2 dimensional complex lie algebra h and a Lie subalgebra g of dimension n. I would like to compute the cohomology of g in the representation h/g. In the specific case that I have in mind, they are both lie algebra of vector fields in C^n. 

@hirnyk In my case I have a n^2 dimensional complex lie algebra h and a Lie subalgebra g of dimension n. I would like to compute the cohomology of g in the representation h/g. In the specific case that I have in mind, they are both lie algebra of vector fields in C^n. 

@hirnyk I look there and if I'm not wrong it says that it can compute the cohomology of g in a Lie subalgebra h, while in my casein stead of h I would like a quotient that is not a Lie subalgebra of g.

@hirnyk I look there and if I'm not wrong it says that it can compute the cohomology of g in a Lie subalgebra h, while in my casein stead of h I would like a quotient that is not a Lie subalgebra of g.