activity
20172026
most citedRecursive Integral Method with Cayley Transformation

7 citations · 10 across the 9 of their papers we have counts for

collaborators

10 papers

physics.med-ph2026

Imaging-Derived Coronary Fractional Flow Reserve: Advances in Physics-Based, Machine Learning, and Physics-Informed Methods

Tanxin Zhu, Emran Hossen, Chen Zhao +4

Purpose of Review Imaging derived fractional flow reserve (FFR) is rapidly evolving beyond conventional computational fluid dynamics (CFD) based pipelines toward machine learning (…

math.NA2025

Fourier-Galerkin method for scattering poles of sound soft obstacles

Yunyun Ma, Jiguang Sun

The computation of scattering poles for a sound-soft obstacle is investigated. These poles correspond to the eigenvalues of two boundary integral operators. We construct novel deco…

math.NA2025

Operator Inference for Elliptic Eigenvalue Problems

Haoqian Li, Jiguang Sun, Zhiwen Zhang

Eigenvalue problems for elliptic operators play an important role in science and engineering applications, where efficient and accurate numerical computation is essential. In this…

math.NA2025

FEM-DtN-SIM Method for Computing Resonances of Schrödinger Operators

Bo Gong, Takumi Sato, Jiguang Sun +1

The study of resonances of the Schrödinger operator has a long-standing tradition in mathematical physics. Extensive theoretical investigations have explored the proximity of reson…

math.NA2024★ 3 cited

Analysis of a finite element DtN method for scattering resonances of sound hard obstacles

Yingxia Xi, Bo Gong, Jiguang Sun

Scattering resonances have important applications in many areas of science and engineering. They are the replacement of discrete spectral data for problems on non-compact domains.…

math.NA2024

A finite element contour integral method for computing the resonances of metallic grating structures with subwavelength holes

Yingxia Xi, Junshan Lin, Jiguang Sun

We consider the numerical computation of resonances for metallic grating structures with dispersive media and small slit holes. The underlying eigenvalue problem is nonlinear and t…

math.NA2024

Parallel Multi-Step Contour Integral Methods for Nonlinear Eigenvalue Problems

Yingxia Xi, Jiguang Sun

We consider nonlinear eigenvalue problems to compute all eigenvalues in a bounded region on the complex plane. Based on domain decomposition and contour integrals, two robust and s…

math.NA2023

Quadratic and cubic Lagrange finite elements for mixed Laplace eigenvalue problems on criss-cross meshes

Kaibo Hu, Jiguang Sun, Qian Zhang

In [6], it was shown that the linear Lagrange element space on criss-cross meshes and its divergence exhibit spurious eigenvalues when applied in the mixed formulation of the Lapla…

math.AP2023

The anisotropic interior transmission eigenvalue problem with a conductive boundary

Victor Hughes, Isaac Harris, Jiguang Sun

In this paper, we study the transmission eigenvalue problem for an anisotropic material with a conductive boundary. We prove that the transmission eigenvalues for this problem exis…

math.NA2017★ 7 cited

Recursive Integral Method with Cayley Transformation

R. Huang, J. Sun, C. Yang

Recently, a non-classical eigenvalue solver, called RIM, was proposed to compute (all) eigenvalues in a region on the complex plane. Without solving any eigenvalue problem, it test…