Results 1 to 10 of about 427 (111)
Entropy, 2023 Universal Causality is a mathematical framework based on higher-order category theory, which generalizes previous approaches based on directed graphs and regular categories.
Sridhar Mahadevan
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Reversing orientation homeomorphisms of surfaces
Pracì Mìžnarodnogo Geometričnogo Centru, 2021 Let $M$ be a connected compact orientable surface, $f:M\to \mathbb{R}$ be a Morse function, and $h:M\to M$ be a diffeomorphism which preserves $f$ in the sense that $f\circ h = f$. We will show that if $h$ leaves invariant each regular component of each
Iryna Kuznietsova, Sergiy Maksymenko
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Regular homotopy of Hurwitz curves [PDF]
Izvestiya: Mathematics, 2004 26 ...
Auroux, D. +2 more
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Covariant singularities in quantum field theory and quantum gravity
Nuclear Physics B, 2021 It is rather well-known that spacetime singularities are not covariant under field redefinitions. A manifestly covariant approach to singularities in classical gravity was proposed in [1].
Roberto Casadio +2 more
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Case Studies in Thermal Engineering, 2021 The double diffusion thermal mechanism of viscoelastic nano-materials has been suggested under the dynamic consequence of nonlinear thermal radiation and temperature absorption/production phenomenon.
M. Ijaz Khan +6 more
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Analytical solution for the motion of a pendulum with rolling wheel: stability analysis
Scientific Reports, 2022 The current work focuses on the motion of a simple pendulum connected to a wheel and a lightweight spring. The fundamental equation of motion is transformed into a complicated nonlinear ordinary differential equation under restricted surroundings.
Galal M. Moatimid, T. S. Amer
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Regular homotopy and total curvature [PDF]
Algebraic & Geometric Topology, 2003 We consider properties of the total absolute geodesic curvature functional on circle immersions into a Riemann surface. In particular, we study its behavior under regular homotopies, its infima in regular homotopy classes, and the homotopy types of spaces of its local minima.
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Topological Nambu monopole in two Higgs doublet models
Physics Letters B, 2020 We show that a topological Nambu monopole exists as a regular solution for a large range of parameters in two Higgs doublet models, contrary to the standard model admitting only non-topological Nambu monopoles.
Minoru Eto +3 more
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Non-linear convective flow of the thin film nanofluid over an inclined stretching surface
Scientific Reports, 2021 To enhance the surface properties of solids the mechanism of thin films is frequently used. Penetration, degradation, stiffness, illumination, diffusion, absorption, and electric performance are all characteristics of a bulk substance medium that a thin ...
Anwar Saeed +4 more
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The Scientific World Journal, 2014 The paper presents the optimal homotopy perturbation method, which is a new method to find approximate analytical solutions for nonlinear partial differential equations.
Constantin Bota, Bogdan Căruntu
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