Results 41 to 50 of about 2,326,589 (197)

Topological and Non-Topological Solitons in Scalar Field Theories

, 2018
Solitons emerge in various nonlinear systems – from nonlinear optics and condensed matter to nuclear physics, cosmology, and supersymmetric theories – as stable, localized configurations behaving in many ways like particles.

semanticscholar   +1 more source

A striking correspondence between the dynamics generated by the vector fields and by the scalar parabolic equations [PDF]

, 2011
The purpose of this paper is to enhance a correspondence between the dynamics of the differential equations $\dot y(t)=g(y(t))$ on $\mathbb{R}^d$ and those of the parabolic equations $\dot u=\Delta u +f(x,u,\nabla u)$ on a bounded domain $\Omega$.
Abraham R., Angenent S. B., Angenent S. B., Angenent S. B., Anosov D. V., Arroyo A., Bendixson I., Bonatti C., Bonatti C., Bonatti C., Brunovský P., Brunovský P., Brunovský P., Brunovský P., Chen X.-Y., Crovisier S., Czaja R., Dancer E. N., Fiedler B., Fiedler B., Fiedler B., Fiedler B., Fiedler B., Fusco G., Fusco G., Fusco G., Fusco G., Galaktianov V. A., GENEVIÈVE RAUGEL, Ghrist R. W., Guckenheimer J., Hale J. K., Hale J. K., Hardt R., Hayashi S., Henry D., Henry D. B., Hirsch M. W., Hirsch M. W., Hirsch M. W., Hirsch M. W., Jolly M., Joly R., Joly R., Joly R., Mallet-Paret J., Matano H., Matano H., Matano H., Newhouse S. E., Nickel K., Nitecki Z., Palis J., Peixoto M. M., Peixoto M. M., Poláčik P., Poláčik P., Poláčik P., Poláčik P., Prizzi M., Pugh C. C., Pugh C. C., Pugh C. C., Pujals E. R., Robinson C., Robinson J. C., Rocha C., Rocha C., ROMAIN JOLY, Ruelle D., Sandstede B., Smale S., Smale S., Smale S., Smale S., Smillie J., Smith H. L., Smith H. L., Sturm C., Wolfrum M.   +79 more
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On a boundary value problem for a Boussinesq-type equation in a triangle

Вестник КазНУ. Серия математика, механика, информатика, 2022
Earlier, we considered an initial-boundary value problem for a one-dimensional Boussinesq-type equation in a domain that is a trapezoid, in which the theorems on its unique weak solvability in Sobolev classes were established by the methods of the theory
M. T. Jenaliyev, A. S. Kassymbekova, M. Yergaliyev   +2 more
doaj   +1 more source

A Scalar Version of the Caflisch‐Luke Paradox [PDF]

Communications on Pure and Applied Mathematics, 2019
Consider an infinite cloud of hard spheres sedimenting in a Stokes flow in the whole space ℝd. Despite many contributions in fluid mechanics and applied mathematics, there is so far no rigorous definition of the associated effective sedimentation ...
A. Gloria
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"Shadowy"modes in Higher-Order Scalar-Tensor theories [PDF]

, 2018
Antonio De Felice,1 David Langlois,2 Shinji Mukohyama,1, 3, 4 Karim Noui,4, 2 and Anzhong Wang5, 6 Center for Gravitational Physics, Yukawa Institute for Theoretical Physics, Kyoto University, 606-8502, Kyoto, Japan Laboratoire Astroparticule et ...
A. D. Felice, D. Langlois, S. Mukohyama, K. Noui, Anzhong Wang   +4 more
semanticscholar   +1 more source

Existence of conformal metrics with constant scalar curvature and constant boundary mean curvature on compact manifolds [PDF]

Communications in Contemporary Mathematics, 2016
We study the problem of deforming a Riemannian metric to a conformal one with nonzero constant scalar curvature and nonzero constant boundary mean curvature on a compact manifold of dimension [Formula: see text].
Xuezhang Chen, Liming Sun
semanticscholar   +1 more source

Calculus-enhanced energy-first curriculum for introductory physics improves student performance locally and in downstream courses

Physical Review Physics Education Research, 2019
Here we demonstrate the benefits of a new curriculum for introductory calculus-based physics that motivates classical mechanics using a modified version of Hamiltonian mechanics.
Sarah E. LeGresley, Jennifer A. Delgado, Christopher R. Bruner, Michael J. Murray, Christopher J. Fischer   +4 more
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Comparisons of Science Motivational Beliefs of Adolescents in Taiwan, Australia, and the United States: Assessing the Measurement Invariance Across Countries and Genders

Frontiers in Psychology, 2021
This study utilized international, large-scale assessment data to compare science motivational beliefs of adolescents within and between countries and genders. The study focused on the beliefs about science of eighth graders, including their self-concept
Pey-Yan Liou, John J. H. Lin
doaj   +1 more source

User-Friendly Tail Bounds for Sums of Random Matrices [PDF]

Foundations of Computational Mathematics, 2010
This paper presents new probability inequalities for sums of independent, random, self-adjoint matrices. These results place simple and easily verifiable hypotheses on the summands, and they deliver strong conclusions about the large-deviation behavior ...
J. Tropp
semanticscholar   +1 more source

The isoperimetric inequality on asymptotically flat manifolds with nonnegative scalar curvature

, 2015
In this note, we consider the isoperimetric inequality on an asymptotically flat manifold with nonnegative scalar curvature, and improve it by using Hawking mass.
Shi, Yuguang
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