2 papers
math.AP2023
Hyperbolic problems with totally characteristic boundary
Zhuoping Ruan, Ingo Witt
We study first-order symmetrizable hyperbolic systems in a spacetime cylinder whose lateral boundary is totally characteristic. In local coordinates near the boundary a…
math.AP2023
A scheme for solving hyperbolic problems with symbolic structure
Zhuoping Ruan, Ingo Witt
Hyperbolic problems can at times be solved employing symbolic arguments. This is especially true for the construction of forward (and backward) fundamental solutions. We formulate…