We consider an initial-boundary value problem for general higher-order hyperbolic equation in an infinite cylinder with the base containing conical points on the boundary. We establish several results on the unique solvability, the regularity, and the asymptotic behaviour of the solution near the conical points.
"On Initial-Boundary Value Problems for Hyperbolic Equations in Domains with Conical Points." Abstr. Appl. Anal. 2013 (SI51) 1 - 10, 2013. https://doi.org/10.1155/2013/801314