4 papers
A novel efficient structure-preserving exponential integrator for Hamiltonian systems
Pan Zhang, Fengyang Xiao, Lu Li
We propose a linearly implicit structure-preserving numerical method for semilinear Hamiltonian systems with polynomial nonlinearities, combining Kahan's method and exponential int…
On the steadiness of symmetric solutions to higher order perturbations of KdV
Long Pei, Fengyang Xiao, Pan Zhang
We consider the traveling structure of symmetric solutions to the Rosenau-Kawahara-RLW equation and the perturbed R-KdV-RLW equation. Both equations are higher order perturbations…
On the steadiness of symmetric solutions to two dimensional dispersive models
Long Pei, Fengyang Xiao, Pan Zhang
In this paper, we consider the steadiness of symmetric solutions to two dispersive models in shallow water and hyperelastic mechanics, respectively. These models are derived previo…
Concealed Object Segmentation with Hierarchical Coherence Modeling
Fengyang Xiao, Pan Zhang, Chunming He +2
Concealed object segmentation (COS) is a challenging task that involves localizing and segmenting those concealed objects that are visually blended with their surrounding environme…