Jehan Oh

activity

20242026

collaborators

3 papers

math.OC2026

Nonsmooth Convex Optimization using the Specular Gradient Method with Root-Linear Convergence

Kiyuob Jung, Jehan Oh

In this paper, we find the special case of the subgradient method minimizing a one-dimensional real-valued function, which we term the specular gradient method, that converges root…

math.CA2025

The Specular Derivative

Kiyuob Jung, Jehan Oh

In this paper, we introduce a new generalized derivative, which we term the specular derivative. We establish the Quasi-Rolles' Theorem, the Quasi-Mean Value Theorem, and the Funda…

math.AP2024

Interior $W^{2, I^´}$ type estimates for degenerate fully nonlinear elliptic equations with $L^{n}$ data

Sun-Sig Byun, Hongsoo Kim, Jehan Oh

We establish interior $W^{2, I^´}$ type estimates for a class of degenerate fully nonlinear elliptic equations with $L^{n}$ data. The main idea of our approach is to slide $C^{1, I^\pm}$ c…

Nonsmooth Convex Optimization using the Specular Gradient Method with Root-Linear Convergence

The Specular Derivative

Interior W2,I^´ type estimates for degenerate fully nonlinear elliptic equations with Ln data

Interior $W^{2, I^´}$ type estimates for degenerate fully nonlinear elliptic equations with $L^{n}$ data