4 problems

Let $X^n$ be a pseudomanifold and let $Y\subset X$ be a compact codimension-$1$ submanifold such that … where $Y\subset\subset X^{\mathrm{reg}}$. For a perversity function…

A complementary weak pseudomanifold is a weak pseudomanifold whose simplicial complex satisfies complementarity. Let $M$ be a $d$-dimensional complementary weak pseudomanifold with…

Nonnegativity conjecture for discrete pseudomanifolds.

Let $k$ be a field of arbitrary characteristic, and let $\Delta$ be a connected oriented simplicial pseudomanifold over $k$ of dimension $d-1$ with vertex set $V$. For…