Showing math.NAShow all
2 papers · 1 filter
math.NA2025
Divergence-free Preserving Mix Finite Element Methods for Fourth-order Active Fluid Model
Nan Zheng, Xu Guo, Wenlong Pei +1
This paper is concerned with mixed finite element method (FEM) for solving the two-dimensional, nonlinear fourth-order active fluid equations. By introducing an auxiliary variable…
math.NA2023
Compressing the memory variables in constant-Q viscoelastic wave propagation via an improved sum-of-exponentials approximation
Xu Guo, Shidong Jiang, Yunfeng Xiong +1
Earth introduces strong attenuation and dispersion to propagating waves. The time-fractional wave equation with very small fractional exponent, based on Kjartansson's constant-Q th…