Functional and Operatorial Equations Defined Implicitly and Moment Problems

Author:

Olteanu Octav1

Affiliation:

1. Department of Mathematics-Informatics, University Politehnica of Bucharest, 060042 Bucharest, Romania

Abstract

The properties of the unique nontrivial analytic solution, defined implicitly by a functional equation, are pointed out. This work provides local estimations and global inequalities for the involved solution. The corresponding operatorial equation is studied as well. The second part of the paper is devoted to the full classical moment problem, which is an inverse problem. Two constraints are imposed on the solution. One of them requires the solution to be dominated by a concrete convex operator defined on the positive cone of the domain space. A one-dimensional operator is valued, and a multidimensional scalar moment problem is solved. In both cases, the existence and the uniqueness of the solution are proved. The general idea of the paper is to provide detailed information on solutions which are not expressible in terms of elementary functions.

Publisher

MDPI AG

Subject

Physics and Astronomy (miscellaneous),General Mathematics,Chemistry (miscellaneous),Computer Science (miscellaneous)

Reference21 articles.

1. Choudary, A.D.R., and Niculescu, C.P. (2014). Real Analysis on Intervals, Springer.

2. Rudin, W. (1987). Real and Complex Analysis, McGraw-Hill Book Company. [3rd ed.].

3. Rudin, W. (1991). Functional Analysis, McGraw-Hill, Inc.. [2nd ed.]. International Editions.

4. Niculescu, C.P., and Persson, L.-E. (2018). Convex Functions and Their Applications. A Contemporary Approach, Springer. [2nd ed.]. CMS Books in Mathematics.

5. Cristescu, R. (1976). Ordered Vector Spaces and Linear Operators, Abacus Press.

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3