Results 51 to 60 of about 22,482 (118)
Truncated Bresse-Timoshenko beam with fractional Laplacian damping [PDF]
Contributions to Mathematics, 2023 Luiz Gutemberg Rosário Miranda +2 more
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On bi-Γ-ideals in Γ-semigroups [PDF]
Songklanakarin Journal of Science and Technology (SJST), 2007 In 1952, R. A. Good and D. R. Hughes introduced the notion of bi-ideals of semigroups and in 1981, the concept of Γ-semigroups was introduced by M. K. Sen. We have known that Γ-semigroups are a generalizationof semigroups. In this research, the notion of
Ronnason Chinram, Chutiporn Jirojkul
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𝒩-Fuzzy Ideals in Ordered Semigroups
International Journal of Mathematics and Mathematical Sciences, 2009 We introduce the concept of 𝒩-fuzzy left (right) ideals in ordered semigroups and characterize ordered semigroups in terms of 𝒩-fuzzy left (right) ideals. We characterize left regular (right regular) and left simple (right simple) ordered
Asghar Khan +2 more
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DLP in semigroups: Algorithms and lower bounds
Journal of Mathematical Cryptology, 2022 The discrete logarithm problem (DLP) in semigroups has attracted some interests and serves as the foundation of many cryptographic schemes. In this work, we study algorithms and lower bounds for DLP in semigroups.
Han Jiao, Zhuang Jincheng
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Partial Observation of Linear Systems With the Mori–Zwanzig Formalism
Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 4, December 2026.ABSTRACT The Mori–Zwanzig (MZ) formalism provides a systematic framework for deriving reduced‐order model of dynamical systems when only part of the state is observed, but its practical use is often limited by the complexity of the resulting computations.
Fan Wang, Peter Benner, Jan Heiland
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Combinatorial Properties and Characterization of Glued Semigroups
Abstract and Applied Analysis, 2014 This work focuses on the combinatorial properties of glued semigroups and provides its combinatorial characterization. Some classical results for affine glued semigroups are generalized and some methods to obtain glued semigroups are developed.
J. I. García-García +2 more
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On the automorphisms of the power semigroups of a numerical semigroup
Transactions of the London Mathematical Society, Volume 13, Issue 1, December 2026.Abstract If H$H$ is a numerical semigroup (i.e., a cofinite subset of the non‐negative integers closed under addition), then the collection of all non‐empty subsets of H$H$ forms a semigroup P(H)$\mathcal {P}(H)$ under the sumset operation induced by addition in H$H$.
Salvatore Tringali, Kerou Wen
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Generalized perfect numerical semigroups [PDF]
Notes on Number Theory and Discrete MathematicsIn this work, we study the isolated gaps for generalized numerical semigroups, intro- duce generalized perfect numerical semigroups, and exemplify these semigroups.
Mohammad Zmmo, Nesrin Tutaş
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The lq-controller synthesis problem for infinite-dimensional systems in factor form [PDF]
Opuscula Mathematica, 2013 The general lq-problem with infinite time horizon for well-posed infinite-dimensional systems has been investigated by George Weiss and Martin Weiss and by Olof Staffans with a complement by Kalle Mikkola and Olof Staffans.
Piotr Grabowski
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Context‐free graphs and their transition groups
Transactions of the London Mathematical Society, Volume 13, Issue 1, December 2026.Abstract Starting from context‐free inverse graphs, we introduce a new class of groups and study their structural properties. We establish closure properties, show that their coword problems are context‐free, analyze torsion elements, and realize them as subgroups of the asynchronous rational group.
Daniele D'Angeli +3 more
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