https://bangmodjmcs.com/index.php/ncao/issue/feedNonlinear Convex Analysis and Optimization: An International Journal on Numerical, Computation and Applications 2025-05-01T07:53:10+00:00Anantachai Padcharoenanantachai.p@rbru.ac.thOpen Journal Systems<p><strong>NCAO </strong>is a peer-reviewed, open-access international journal, that devotes to the publication of original articles of current interest in every theoretical, fixed point theory, numerical optimization, and optimization technique and their applications to science and engineering. All manuscripts are refereed under the same standards as those used by the finest-quality printed mathematical journals. Accepted papers will be published online in their final form as an NCAO formatted PDF. and will be published in two issues annually in June and December.</p>https://bangmodjmcs.com/index.php/ncao/article/view/151The Proximal Point Algorithm for Monotone Vector Fields on Complete Geodesic Spaces2025-03-25T07:33:10+00:00Shuta Sudo7523001s@st.toho-u.ac.jp<p>In this paper, we deal with monotone vector fields defined on geodesic spaces and their zero point approximation method. In an appropriate setting, we can define the resolvent operator for a given monotone vector field, and then that operator has many useful properties which are effective for the fixed point theory. We will show an approximation theorem for a monotone vector field with the canonical proximal point algorithm.</p>2025-05-01T00:00:00+00:00Copyright (c) 2025 Shuta Sudohttps://bangmodjmcs.com/index.php/ncao/article/view/127Approximating Endpoints of Multi-Valued Nonexpansive Mappings in Uniformly Convex Hyperbolic Spaces Using a Novel Iteration Process2025-03-06T06:49:45+00:00Thanomsak Laokulthanom.kul@mwit.ac.th<p class="p1">In this paper, we propose a modified iteration process for approximating the endpoints of multi-valued nonexpansive mappings in 2-uniformly convex hyperbolic spaces, extending the framework of uniformly convex Banach spaces. We establish a \(\Delta\)-convergence theorem for the iterative sequence and, under sufficient conditions, prove strong convergence theorems. These findings extend and improve upon the work of Makbule Kaplan Ozekes and others. ¨</p>2025-05-06T00:00:00+00:00Copyright (c) 2025 Thanomsak Laokulhttps://bangmodjmcs.com/index.php/ncao/article/view/153Extending the Scope of the Fractional Hardy Integral Inequality2025-03-06T07:10:23+00:00Christophe Chesneauchristophe.chesneau@gmail.com<p>In this article, we establish two theorems that generalize the fractional Hardy integral inequality by incorporating several intermediate functions and parameters. The assumptions made are tractable. Some of them can be related to the notions of sub-additivity and sub-multiplicativity. The proofs are self-contained, without intermediate results, and all details are given. We thus extend the applicability of a classical integral inequality and offer new potential applications in mathematical analysis.</p>2025-05-06T00:00:00+00:00Copyright (c) 2025 Christophe Chesneau