Generalized Snell’s law for weighted minimal surface in the heterogeneous media. (English) Zbl 1081.35034

Li, Zhilin; Lin, Xiaobiao; Torres, Monica; Zhao, Hongkai

Methods Appl. Anal. 10, No. 2, 199-214 (2003).

Summary: The weighted minimal surface prohlem in heterogeneous media is studied in this paper. The solution to the weighted minimal surface problem is continuous but the derivatives have a jump across the interface where the medium property is discontinuous. The jump condition of the derivatives derived in this paper generalized the Snell’s law in geometric optics to weighted minimal surfaces of co-dimension one in any dimensional space. A numerical method based on the gradient flow and the maximum principal preserving immersed interface method is developed to solve this nonlinear elliptic interface problem with jump conditions. Numerical computations are presented to verify both the analysis and the numerical algorithm.

MSC:

35J60	Nonlinear elliptic equations
53A10	Minimal surfaces in differential geometry, surfaces with prescribed mean curvature
49Q05	Minimal surfaces and optimization