Every Tuesday from 12 to 12:50 p.m., I attend section for MATH 0180: Intermediate Calculus. During these fifty minutes, we solve challenging problem sets in groups of two or three. Every Tuesday at 12 ...

We study the initial boundary value problem of semilinear hyperbolic equations utt – Δu = f(u) and semilinear parabolic equations ut – Δu = f(u) with critical initial data E(0) = d (or J(u₀) = d), ...

The Annals of Applied Probability, Vol. 28, No. 3 (June 2018), pp. 1943-1976 (34 pages) The initial-boundary value problem for the heat equation is solved by using an algorithm based on a random walk ...

Problems can be difficult to solve when we only know the issue and none of the steps to fix it. Sometimes it's even more daunting to figure out what those steps are at all. This guide will help you ...