Results 11 to 20 of about 2,304,071 (294)
Numerical Models of Cosmological Evolution of the Degenerated Fermi-system of Scalar Charged Particles [PDF]
Gravitation & Cosmology, 2014 Based on mathematical model of the statistical Fermi system with the interparticle interaction which was constructed in the previous articles, this work offers the construction and analysis of the numerical models of cosmological evolution of the single ...
Agathonov, A. A., Ignatyev, Yu. G.
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Phase-Space Analysis of an Einstein–Gauss–Bonnet Scalar Field Cosmology [PDF]
Mathematics, 2023 We perform a detailed study of the phase-space of the field equations of an Einstein–Gauss–Bonnet scalar field cosmology for a spatially flat Friedmann–Lemaître–Robertson–Walker spacetime.
Alfredo D. Millano +2 more
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Scalar Curvature, Entropy, and Generalized Ricci Flow [PDF]
International mathematics research notices, 2022 We derive a family of weighted scalar curvature monotonicity formulas for generalized Ricci flow, involving an auxiliary dilaton field evolving by a certain reaction–diffusion equation motivated by renormalization group flow.
J. Streets
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Analysis, Prediction, and Control of Epidemics: A Survey from Scalar to Dynamic Network Models [PDF]
IEEE Circuits and Systems Magazine, 2021 During the ongoing COVID-19 pandemic, mathematical models of epidemic spreading have emerged as powerful tools to produce valuable predictions of the evolution of the pandemic, helping public health authorities decide which intervention policies should ...
Lorenzo Zino, M. Cao
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Weak scalar curvature lower bounds along Ricci flow [PDF]
Science China Mathematics, 2021 In this paper, we study Ricci flow on compact manifolds with a continuous initial metric. It was known from Simon (2002) that the Ricci flow exists for a short time.
Wenshuai Jiang +2 more
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The Batchelor Spectrum of Passive Scalar Turbulence in Stochastic Fluid Mechanics at Fixed Reynolds Number [PDF]
Communications on Pure and Applied Mathematics, 2019 In 1959 Batchelor predicted that the stationary statistics of passive scalars advected in fluids with small diffusivity k should display a k−1 power spectrum along an inertial range contained in the viscous‐convective range of the fluid model.
J. Bedrossian +2 more
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Frontiers in Psychology, 2021 A stereotype threat arises when a negative stereotype about group to which an individual belongs is activated. It affects the achievement and interest of students in a particular academic domain, e.g., girls at math or boys at language arts. Hence, it is
Sylwia Bedyńska +2 more
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Results in Physics, 2021 Static spaces (with perfect fluids) appeared in a natural way both in physics (cf. Hawking and Ellis, 1975) and mathematics (cf. A. Fischer and J. Marsden, Duke Math. J. 42 (3) (1975), 519–547).
Ibrahim Al-Dayel +2 more
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Prescribing Morse Scalar Curvatures: Pinching and Morse Theory [PDF]
Communications on Pure and Applied Mathematics, 2019 We consider the problem of prescribing conformally the scalar curvature on compact manifolds of positive Yamabe class in dimension n≥5 . We prove new existence results using Morse theory and some analysis on blowing‐up solutions under suitable pinching ...
A. Malchiodi, Martin Gebhard Mayer
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