Advances in Mathematics: Equations, Algebra, and Discrete Mathematics

A special issue of Mathematics (ISSN 2227-7390). This special issue belongs to the section "Difference and Differential Equations".

Deadline for manuscript submissions: 1 May 2025 | Viewed by 1438

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MEMOTEF, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
Interests: game theory; ordinary differential equations; mathematical economics; voting games
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Special Issue Information

Dear Colleagues,

It is with great pleasure that I introduce a new and exciting project, specifically devoted to exploring the rich and dynamic fields of equations, algebra, and discrete mathematics. Algebra, as one of the foundational pillars of mathematical sciences, continues to captivate and challenge us with its deep complexities and structures. Equations, both differential and difference, are crucial in understanding dynamic systems and modeling various phenomena, while discrete mathematics opens up pathways to computational innovations and theoretical advancements.

This Special Issue aims to be as inclusive as possible. I am particularly interested in novel contributions in these areas, including but not limited to studies on number theory, algebraic topology, computational algebra, algebraic curves and surfaces, algebraic combinatorics, complex equations, and discrete mathematics.

I encourage researchers and scholars from all over the world to submit their high-quality papers to this Special Issue. I am sure that a lot of new and interesting results will be published and appreciated by the mathematical community worldwide.

Dr. Arsen Palestini
Guest Editor

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Keywords

  • primes
  • conjecture
  • analytic number theory
  • discrete mathematics
  • Diophantine equations
  • finite fields
  • approximation of constants
  • continued fractions
  • Ramanujan theories
  • algebraic equations
  • additive number theory
  • algebraic combinatorics
  • algebraic topology

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Published Papers (2 papers)

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Research

20 pages, 356 KiB  
Article
Pre-Compactness of Sets and Compactness of Commutators for Riesz Potential in Global Morrey-Type Spaces
by Nurzhan Bokayev, Victor Burenkov, Dauren Matin and Aidos Adilkhanov
Mathematics 2024, 12(22), 3533; https://doi.org/10.3390/math12223533 - 12 Nov 2024
Viewed by 339
Abstract
In this paper, we establish sufficient conditions for the pre-compactness of sets in the global Morrey-type spaces GMpθw(·). Our main result is the compactness of the commutators of the Riesz potential b,Iα [...] Read more.
In this paper, we establish sufficient conditions for the pre-compactness of sets in the global Morrey-type spaces GMpθw(·). Our main result is the compactness of the commutators of the Riesz potential b,Iα in global Morrey-type spaces from GMp1θ1w1(·) to GMp2θ2w2(·). We also present new sufficient conditions for the commutator b,Iα to be bounded from GMp1θ1w1(·) to GMp2θ2w2(·). In the proof of the theorem regarding the compactness of the commutator for the Riesz potential, we primarily utilize the boundedness condition for the commutator for the Riesz potential b,Iα in global Morrey-type spaces GMpθw(·), and the sufficient conditions derived from the theorem on pre-compactness of sets in global Morrey-type spaces GMpθw(·). Full article
(This article belongs to the Special Issue Advances in Mathematics: Equations, Algebra, and Discrete Mathematics)
15 pages, 278 KiB  
Article
Unique Solutions for Caputo Fractional Differential Equations with Several Delays Using Progressive Contractions
by Cemil Tunç and Fahir Talay Akyildiz
Mathematics 2024, 12(18), 2799; https://doi.org/10.3390/math12182799 - 10 Sep 2024
Cited by 1 | Viewed by 557
Abstract
We take into account a nonlinear Caputo fractional-order differential equation including several variable delays. We examine whether the solutions to the Caputo fractional-order differential equation taken under consideration, which has numerous variable delays, are unique. In the present study, first, we will apply [...] Read more.
We take into account a nonlinear Caputo fractional-order differential equation including several variable delays. We examine whether the solutions to the Caputo fractional-order differential equation taken under consideration, which has numerous variable delays, are unique. In the present study, first, we will apply the method of progressive contractions, which belongs to T.A. Burton, to Caputo fractional-order differential equation, including multiple variable delays, which has not yet appeared in the relevant literature by this time. The significant point of the method of progressive contractions consists of a very flexible idea to discuss the uniqueness of solutions for various mathematical models. Lastly, we provide two examples to demonstrate how this paper’s primary outcome can be applied. Full article
(This article belongs to the Special Issue Advances in Mathematics: Equations, Algebra, and Discrete Mathematics)
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