activity
20182026
most citedA Finite Element Approach for the Dual Rudin--Osher--Fatemi Model and Its Nonoverlapping Domain Decomposition Methods

18 citations · 149 across the 24 of their papers we have counts for

collaborators

26 papers

math.NT2026

The strong Ramanujan bound for Drinfeld modular forms

Sjoerd de Vries

The Ramanujan bound states that the degree of the trace of the -Hecke operator on a space of weight Drinfeld cusp forms is at most , where $\mathfrak{p}…

math.NA2026

Optimal block preconditioners for a mass-conserving mixed stress formulation of Stokes flow

Kaibo Hu, Jongho Park, Jindong Wang

We present optimal block diagonal and triangular preconditioners for a mass-conserving mixed stress formulation of Stokes flow. The algebraic formulation leads to a double saddle p…

math.NA2025

Parallel multilevel methods for solving the Darcy--Forchheimer model based on a nearly semicoercive formulation

Jongho Park, S. Majid Hassanizadeh

High-velocity fluid flow through porous media is modeled by prescribing a nonlinear relationship between the flow rate and the pressure gradient, called the Darcy--Forchheimer equa…

math.OC2025

Randomized subspace correction methods for convex optimization

Boou Jiang, Jongho Park, Jinchao Xu

This paper introduces an abstract framework for randomized subspace correction methods for convex optimization, which unifies and generalizes a broad class of existing algorithms,…

math.NA2024★ 1 cited

Two-level overlapping Schwarz preconditioners with universal coarse spaces for th-order elliptic problems

Jongho Park

We propose a novel universal construction of two-level overlapping Schwarz preconditioners for th-order elliptic boundary value problems, where is a positive integer. The w…

cs.LG2023★ 2 cited

Balanced Group Convolution: An Improved Group Convolution Based on Approximability Estimates

Youngkyu Lee, Jongho Park, Chang-Ock Lee

The performance of neural networks has been significantly improved by increasing the number of channels in convolutional layers. However, this increase in performance comes with a…