Abundant lumps and their interaction solutions of (3+1)-dimensional linear PDEs

The paper aims to explore the existence of diverse lump and interaction solutions to linear partial differential equations in (3+1)-dimensions. The remarkable richness of exact solutions to a class of linear partial differential equations in (3+1)-dimensions will be exhibited through Maple symbolic computations, which yields exact lump, lump-periodic and lump-soliton solutions. The results expand the understanding of lump, freak wave and breather solutions and their interaction solutions in soliton theory.