Results 41 to 50 of about 349,076 (327)
Geometry and Topology of String Junctions [PDF]
Journal of Singularities, 2016 We study elliptic fibrations by analyzing suitable deformations of the fibrations and vanishing cycles. We introduce geometric string junctions and describe some of their properties. We show how the structure of the geometric string junctions is naturally related to the Lie algebra structures of the associated singularities.
Grassi, Antonella +2 more
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International Journal of Mathematics and Mathematical Sciences, 1999 A tiling of a topological space X is a covering of X by sets (called tiles) which are the closures of their pairwise-disjoint interiors. Tilings of ℝ2 have received considerable attention (see [2] for a wealth of interesting examples and results as well ...
F. G. Arenas
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AIMS Mathematics, 2023 Using the theory of Lie-Hamilton systems, formal generalized time-dependent Hamiltonian systems that extend a recently proposed SIS epidemic model with a variable infection rate are considered.
Rutwig Campoamor-Stursberg +2 more
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Topological recursion and geometry [PDF]
Reviews in Mathematical Physics, 2020 This paper aims at explaining some incarnations of the idea of topological recursion: in two-dimensional quantum field theories (2d TQFTs), in cohomological field theories (CohFT), and in the computation of volumes of the moduli space of curves. It gives an introduction to the formalism of quantum Airy structures on which the topological recursion is ...
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Coarse Geometry and Topological Phases [PDF]
Communications in Mathematical Physics, 2019 We propose the Roe C*-algebra from coarse geometry as a model for topological phases of disordered materials. We explain the robustness of this C*-algebra and formulate the bulk-edge correspondence in this framework. We describe the map from the K-theory of the group C*-algebra of Z^d to the K-theory of the Roe C*-algebra, both for real and complex K ...
Eske Ellen Ewert, Ralf Meyer
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Demonstratio Mathematica, 2020 Riemann-Liouville fractional differential equations with a constant delay and impulses are studied in this article. The following two cases are considered: the case when the lower limit of the fractional derivative is fixed on the whole interval of ...
Hristova Snezhana G., Tersian Stepan A.
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Entropy, 2021 The purpose of this article is to establish some inequalities concerning the normalized δ-Casorati curvatures (extrinsic invariants) and the scalar curvature (intrinsic invariant) of totally real spacelike submanifolds in statistical manifolds of the ...
Bang-Yen Chen +2 more
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The geometry and topology of reconfiguration
Advances in Applied Mathematics, 2007 AbstractA number of reconfiguration problems in robotics, biology, computer science, combinatorics, and group theory coordinate local rules to effect global changes in system states. We define for any such reconfigurable system a cubical complex—the state complex—which coordinates independent local moves.
Robert Ghrist, V. Peterson
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Synchronization of Caputo fractional neural networks with bounded time variable delays
Open Mathematics, 2021 One of the main problems connected with neural networks is synchronization. We examine a model of a neural network with time-varying delay and also the case when the connection weights (the influential strength of the jjth neuron to the iith neuron) are ...
Almeida Ricardo +2 more
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Topological Persistence in Geometry and Analysis [PDF]
, 2020 An Erratum ...
Karina Samvelyan +3 more
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