Graph polynomials serve as robust algebraic encodings of the intricate combinatorial properties inherent to graphs. At the heart of this discipline lies the Tutte polynomial, an invariant that not ...

Mountain View High School teacher Randy Vogl preps his students for the Advanced Placement calculus exam by giving them a question from an old test. The students work quietly on the problem, which ...

Let the parabolic problem $c(x, t, u)u_t = a(x, t, u)u_{xx} + b(x, t, u, u_x), 0 < x < 1, 0 < t \leqq T, u(x, 0) = f(x), u(0, t) = g_0(t), u(1, t)$, be solved ...