Zobrazeno 1 - 10
of 11 102
pro vyhledávání: '"Speight A."'
Autor:
Slobodeanu, Radu, Speight, Martin
A Skyrme type energy functional for maps $\varphi$ from an oriented Riemannian 3-manifold $M$ to a contact 3-manifold $N$ is defined, generalizing the BPS Skyrme energy of Ferreira and Zakrzewski. This energy has a topological lower bound, attained b
Externí odkaz:
http://arxiv.org/abs/2411.09649
The Skyrme model is extended with the Maxwell action and a source term for the gauge field. We consider the specialized case of vanishing isospin states, such that only an electric potential is turned on and study the backreaction onto the Skyrme fie
Externí odkaz:
http://arxiv.org/abs/2410.19618
Autor:
Speight, Martin, Winyard, Thomas
A method is developed to compute minimal energy vortex lattices in a general Ginzburg-Landau model of a superconductor subjected to an applied magnetic field. The model may have any number of components and may be spatially anisotropic. Both the peri
Externí odkaz:
http://arxiv.org/abs/2406.16584
We show that there exists a family of mutually singular doubling measures on Laakso space with respect to which real-valued Lipschitz functions are almost everywhere differentiable. This implies that there exists a measure zero universal differentiab
Externí odkaz:
http://arxiv.org/abs/2406.07660
Autor:
Speight, Sam
We develop realizability models of intensional type theory, based on groupoids, wherein realizers themselves carry non-trivial (non-discrete) homotopical structure. In the spirit of realizability, this is intended to formalize a homotopical BHK inter
Externí odkaz:
http://arxiv.org/abs/2405.19095
Publikováno v:
J. High Energ. Phys. 06, 116 (2024)
We investigate the ground state crystalline structure of nuclear matter in the $\omega$-meson variant of the Skyrme model. After minimizing energy with respect to variations of both the Skyrme field and the period lattice, we find four distinct perio
Externí odkaz:
http://arxiv.org/abs/2404.11287
Publikováno v:
School-University Partnerships, 2024, Vol. 17, Issue 3, pp. 259-267.
Externí odkaz:
http://www.emeraldinsight.com/doi/10.1108/SUP-02-2023-0012
Higher order Whitney extension and Lusin approximation for Horizontal curves in the Heisenberg group
In the setting of horizontal curves in the Heisenberg group, we prove a $C^{m,\omega}$ finiteness principle, a $C^{m,\omega}$ Lusin approximation result, a $C^{\infty}$ Whitney extension result, and a $C^{\infty}$ Lusin approximation result. Combined
Externí odkaz:
http://arxiv.org/abs/2310.06953
Autor:
James P. Copley, Benjamin J. Hayes, Elizabeth M. Ross, Shannon Speight, Geoffry Fordyce, Benjamin J. Wood, Bailey N. Engle
Publikováno v:
Genetics Selection Evolution, Vol 56, Iss 1, Pp 1-14 (2024)
Abstract Background Genotype by environment interactions (GxE) affect a range of production traits in beef cattle. Quantifying the effect of GxE in commercial and multi-breed herds is challenging due to unknown genetic linkage between animals across
Externí odkaz:
https://doaj.org/article/378e4f5cacee440bad7546d4336ab4ae
Autor:
Jennifer A. Halliday, Elizabeth Holmes-Truscott, Sharmala Thuraisingam, Uffe Søholm, Mary Lou Chatterton, Sienna Russell-Green, Eric O, Sof Andrikopoulos, Taryn Black, Susan Davidson, Glen Noonan, Renza Scibilia, Virginia Hagger, Christel Hendrieckx, Cathrine Mihalopoulos, James A. M. Shaw, Vincent L. Versace, Sophia Zoungas, Timothy C. Skinner, Jane Speight, on behalf of the HypoPAST Research Group
Publikováno v:
Trials, Vol 25, Iss 1, Pp 1-19 (2024)
Abstract Background Management of type 1 diabetes (T1D) requires the use of insulin, which can cause hypoglycaemia (low blood glucose levels). While most hypoglycaemic episodes can be self-treated, all episodes can be sudden, inconvenient, challengin
Externí odkaz:
https://doaj.org/article/278a49a65d104c889f82c7d8bfba9bab