James Propp

collaborators

2 papers

math.NT2004

In search of Robbins stability

Kiran S. Kedlaya, James G. Propp

We speculate on whether a certain p-adic stability phenomenon, observed by David Robbins empirically for Dodgson condensation, appears in other nonlinear recurrence relations that…

math.CO2004

Lambda-determinants and domino-tilings

James Propp

Consider the $2 n$ -by- $2 n$ matrix $M = (m_{i, j})_{i, j = 1}^{2 n}$ with $m_{i, j} = 1$ for $i, j$ satisfying $∣2 i - 2 n - 1∣ + ∣2 j - 2 n - 1∣ \leq 2 n$ and $m_{i, j} = 0$ for all other $i, j$ , consisting…