Accelerated riemannian optimization: Handling constraints with a prox to bound geometric penalties

D Martínez-Rubio, S Pokutta - The Thirty Sixth Annual …, 2023 - proceedings.mlr.press
We propose a globally-accelerated, first-order method for the optimization of smooth and
(strongly or not) geodesically-convex functions in a wide class of Hadamard manifolds. We …

Hermite–Hadamard and Ostrowski type inequalities on hemispheres

A Barani - Mediterranean Journal of Mathematics, 2016 - Springer
Hermite–Hadamard and Ostrowski Type Inequalities on Hemispheres Page 1 Mediterr. J. Math.
13 (2016), 4253–4263 DOI 10.1007/s00009-016-0743-3 1660-5446/16/064253-11 published …

Inexact proximal point algorithm for quasiconvex optimization problems on Hadamard manifolds

S Azami, A Barani, M Oveisiha - Optimization, 2024 - Taylor & Francis
In this paper, by using the inexact scalarization proximal methods, we solve quasiconvex
multiobjective optimization problems on Hadamard manifolds. Under some assumptions on …

Weak geodesics on prox-regular subsets of Riemannian manifolds

J Ferrera, MR Pouryayevali, H Radmanesh - arXiv preprint arXiv …, 2022 - arxiv.org
We give a definition of weak geodesics on prox-regular subsets of Riemannian manifolds as
continuous curves with some weak regularities. Then obtaining a suitable Lipschitz constant …

Subdifferentials of perturbed distance function in Riemannian manifolds

A Barani - Optimization, 2018 - Taylor & Francis
The notions of perturbed optimization problem and perturbed distance function are
introduced in Riemannian manifolds. Some characterizations of Fréchet and proximal …

Convexity of the solution set of a pseudoconvex inequality in Riemannian manifolds

A Barani - Numerical Functional Analysis and Optimization, 2018 - Taylor & Francis
Full article: Convexity of the Solution Set of a Pseudoconvex Inequality in Riemannian
Manifolds Skip to Main Content Taylor and Francis Online homepage Taylor and Francis Online …

Local minimality of weak geodesics on prox-regular subsets of Riemannian manifolds

J Ferrera, MR Pouryayevali, H Radmanesh - Mediterranean Journal of …, 2024 - Springer
In this paper, we prove that every locally minimizing curve with constant speed in a prox-
regular subset of a Riemannian manifold is a weak geodesic. Moreover, it is shown that …

Minimizing curves in prox-regular subsets of Riemannian manifolds

MR Pouryayevali, H Radmanesh - Set-Valued and Variational Analysis, 2021 - Springer
We obtain a characterization of the proximal normal cone to a prox-regular subset of a
Riemannian manifold and some properties of Bouligand tangent cones to these sets are …

On the regularity of sets in Riemannian manifolds

A Sepahvand, A Barani - Journal of the Australian Mathematical …, 2021 - cambridge.org
This paper is devoted to the study of the normal (tangential) regularity of a closed set and the
subdifferential (directional) regularity of its distance function in the context of Riemannian …

Subdifferentials of distance function outside of target set in Riemannian manifolds

F Malmir, A Barani - Bulletin of the Iranian Mathematical Society, 2022 - Springer
In this paper some subdifferentials of distance function from a closed subset in points
outside of the target set are introduced in the context of Riemannian manifolds. The …