2 problems

For a copula whose operator tail density is defined using a diagonal norming matrix, suppose that the entries of the matrix are not all equal. Hidden regular variation conjecture.…

Let $F_1=\ldots=F_A$ be the common birth-rate function for $A$ agents, and let the initial state be … For each $a\geq 2$, let $c(A,a)$ denote the tail-dependence constant appearing…