SIAM Journal on Applied Mathematics, Vol. 48, No. 6 (Dec., 1988), pp. 1227-1243 (17 pages) The aim of this paper is to contribute to the foundation of the asymptotic methods for initial-boundary value ...

The localized energy estimate for the wave equation is known to be a fairly robust measure of dispersion. Recent analogs on the (1 + 3)-dimensional Schwarzschild space-time have played a key role in a ...

A while back, [Chris Lu] was studying how analog circuits, specifically op-amps can be used to perform mathematical operations and wondered if they could be persuaded to solve differential equations, ...