Say I have a family of linear spaces, and that I can solve all Schuber problems of that family (that is, how many members of the family pass through a set $S$ of linear spaces, where we consider all ...
Both Kazhdan-Lusztig and Steinberg have defined pairs of preorders on $S_n$. Kazhdan and Lusztig's preorders come from their basis: We write $x\leq_L y$ if any left ideal spanned by K-L basis ...
Consider a smooth, closed, compact finite-dim manifold. We have Poincare Duality to relate the cocycles and cycles. I would like to know where I can find a reference for a proof that the cup ...