We consider the wave equations with perturbation of the first order differential operators, the coefficients of which depend on both the space and time variables. Under suitable conditions on the ...
Quarterly of Applied Mathematics, Vol. 74, No. 1 (March · 2016), pp. 61-87 (27 pages) In this paper we discuss a novel High–Order Perturbation of Surfaces (HOPS) method for the simulation of linear ...