Results 31 to 40 of about 302,725 (292)

Spacetime Paths as a Whole

Quantum Reports, 2020
The mathematical similarities between non-relativistic wavefunction propagation in quantum mechanics and image propagation in scalar diffraction theory are used to develop a novel understanding of time and paths through spacetime as a whole.
Sky Nelson-Isaacs
doaj   +1 more source

Irreversibility of World-sheet Renormalization Group Flow [PDF]

, 2005
We demonstrate the irreversibility of a wide class of world-sheet renormalization group (RG) flows to first order in $\alpha'$ in string theory. Our techniques draw on the mathematics of Ricci flows, adapted to asymptotically flat target manifolds.
Adams, Bakas, Callan, E. Woolgar, Ecker, Fradkin, Friedan, Gutperle, Hamilton, Headrick, Ivey, Jost, Morozov, Perelman, Polchinski, T. Oliynyk, Tseytlin, V. Suneeta, Zamolodchikov   +18 more
core   +2 more sources

A space for inflections: following up on JMM's special issue on mathematical theories of voice leading [PDF]

, 2013
Journal of Mathematics and Music's recent special issue 7(2) reveals substantial common ground between mathematical theories of harmony advanced by Tymoczko, Hook, Plotkin, and Douthett.
Yust, Jason
core   +1 more source

Measurement of job motivation in TEDS-M: testing for invariance across countries and cultures

Large-scale Assessments in Education, 2016
The paper presents the challenges of cross-country and cross-cultural research on the motivation to become a mathematics teacher based on data from the “Teacher Education and Development Study in Mathematics (TEDS-M)”.
Christin Laschke, Sigrid Blömeke
doaj   +1 more source

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

Riccati equations

International Journal of Mathematics and Mathematical Sciences, 1987
In this paper we find closed form solutions of some Riccati equations. Attention is restricted to the scalar as opposed to the matrix case. However, the ones considered have important applications to mathematics and the sciences, mostly in the form of ...
Lloyd K. Williams
doaj   +1 more source

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

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
doaj   +1 more source

Quantum theta functions and Gabor frames for modulation spaces [PDF]

, 2008
Representations of the celebrated Heisenberg commutation relations in quantum mechanics and their exponentiated versions form the starting point for a number of basic constructions, both in mathematics and mathematical physics (geometric quantization ...
A. Connes, A. Connes, A. Connes, A. Ron, A. Weil, A.J.E.M. Janssen, A.J.E.M. Janssen, A.J.E.M. Janssen, A.J.E.M. Janssen, D. Gabor, D.C. Farden, E.C. Young, F. Boca, Franz luef, G.B. Folland, H. Reiter, H.G. Feichtinger, H.G. Feichtinger, H.G. Feichtinger, H.G. Feichtinger, I. Daubechies, I. Daubechies, I. Daubechies, J.-i. Igusa, K. Gröchenig, K. Gröchenig, K. Gröchenig, K. Seip, M. Frank, M. Reiter, M. Reiter, M.A. Rieffel, M.A. Rieffel, M.A. Rieffel, M.A. Rieffel, M.J. Bastiaans, R. Howe, R.G. Littlejohn, R.J. Duffin, S.M. Sussman, W. Schempp, Yuri I. Manin   +41 more
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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
core   +1 more source