3 papers
math.OC2026
Bregman level proximal subdifferentials and new characterizations of Bregman proximal operators
Ziyuan Wang, Andreas Themelis
Classic subdifferentials in variational analysis may fail to fully represent the Bregman proximal operator in the absence of convexity. In this paper, we fill this gap by introduci…
physics.class-ph2025
Rigid body kinematics in an intuitive group-theoretic approach, as completely as possible: Part I Rotational phenomena
Ziyuan Wang
This paper focuses on rotational phenomena of rigid body kinematics. It discusses them in a group-theoretic approach as completely as possible, using methods and notations as intui…
math.OC2025
On the natural domain of Bregman operators
Andreas Themelis, Ziyuan Wang
The Bregman proximal mapping and Bregman-Moreau envelope are traditionally studied for functions defined on the entire space , even though these constructions depend…