most citedNumerical approximation of the invariant distribution for a class of stochastic damped wave equations

2 citations · 3 across the 3 of their papers we have counts for

collaborators

3 papers

math.NA2023★ 2 cited

Numerical approximation of the invariant distribution for a class of stochastic damped wave equations

Ziyi Lei, Charles-Edouard Bréhier, Siqing Gan

We study a class of stochastic semilinear damped wave equations driven by additive Wiener noise. Owing to the damping term, under appropriate conditions on the nonlinearity, the so…

math.NA2021★ 1 cited

First order strong approximation of Ait-Sahalia-type interest rate model with Poisson jumps

Ziyi Lei, Siqing Gan, Jing Liu

For Ait-Sahalia-type interest rate model with Poisson jumps, we are interested in strong convergence of a novel time-stepping method, called transformed jump-adapted backward Euler…

math.CO2021

A categorification for the signed chromatic polynomial

Zhiyun Cheng, Ziyi Lei, Yitian Wang +1

By coloring a signed graph by signed colors, one obtains the signed chromatic polynomial of the signed graph. For each signed graph we construct graded cohomology groups whose grad…