arXiv subjects

Chang-Hua Wei

Publications and source records attributed to Chang-Hua Wei.

2 recordsLinked to original sources

arXiv2013

Completely linear degeneracy for quasilinear hyperbolic systems in several space variables

In this paper, we introduce the concept of completely linear degeneracy for quasilinear hyperbolic systems in several space variables, and then get an interesting property for multidimensional hyperbolic conservation laws. Some examples and applications are given at last.

math.AP↗

arXiv2013

Lifespan of smooth solutions for timelike extremal surface equation in de Sitter spacetime

In this paper, we study the generalized timelike extremal surface equation in the de Sitter spacetime, which plays an important role in both mathematics and physics. Under the assumption of small initial data with compact support, we investigate the lower bound of lifespan of smooth solutions by weighted energy estimates.

math.AP↗