Results 31 to 40 of about 5,837 (259)

Subregular representations of Sln and simple singularities of type An-1. Part II [PDF]

, 2003
The aim of this paper is to show that the structures on K-theory used to formulate Lusztig's conjecture for subregular nilpotent sln-representations are, in fact, natural in the McKay correspondence.
Rumynin, D., Iain Gordon, Dmitriy Rumynin, Gordon, I. (Iain), Rumynin, Dmitriy, Gordon, I.   +5 more
core   +1 more source

Dynamics of singular complex analytic vector fields with essential singularities II [PDF]

Journal of Singularities, 2017
The singular complex analytic vector fields $X$ on the Riemann sphere $\widehat{\mathbb C}_z$ belonging to the family ${\mathscr E}(r,d)=\left\{ X(z)=\frac{1}{P(z)} e^{E(z)}\frac{\partial }{\partial z}\ \Big\vert \ P, E\in\mathbb{C}[z]\right\}$, where $P$ is monic, $deg(P)=r$, $deg(E)=d$, $r+d\geq 1$, have a finite number of poles on the complex plane ...
Alvarez-Parrilla, Alvaro, Muciño-Raymundo, Jesús   +1 more
openaire   +3 more sources

Simple curve singularities

, 2015
In this paper we classify simple parametrisations of complex curve singularities of arbitrary embedding dimension. Simple means that all neighbouring singularities fall in finitely many equivalence classes.
Stevens, Jan, Stevens, Jan,
core   +1 more source

The optical singularities of birefringent dichroic chiral crystals

, 2003
Using a new formalism involving projection from the sphere of directions to the stereographic plane, and associated complex variables, explicit formulae are obtained for the two refractive indices and polarizations in optically anisotropic crystals that ...
Dennis, MR, Berry, MV, M. V. Berry, Dennis, M.R., M. R. Dennis, Berry, M.V., Berry, M. V., Dennis, M. R.; id_orcid   +7 more
core   +1 more source

Linking the singularities of cosmological correlators

Journal of High Energy Physics, 2022
Much of the structure of cosmological correlators is controlled by their singularities, which in turn are fixed in terms of flat-space scattering amplitudes.
Daniel Baumann, Wei-Ming Chen, Carlos Duaso Pueyo, Austin Joyce, Hayden Lee, Guilherme L. Pimentel   +5 more
doaj   +1 more source

Revisiting the Lee-Yang singularities in the four-dimensional Ising model: a tribute to the memory of Ralph Kenna

Condensed Matter Physics
We have studied numerically the Lee-Yang singularities of the four dimensional Ising model at criticality, which is believed to be in the same universality class as the φ44 scalar field theory.
J. J. Ruiz-Lorenzo
doaj   +1 more source

On the topology of a resolution of isolated singularities

, 2017
et Y be a complex projective variety of dimension n with isolated singularities, \pi:X->Y a resolution of singularities, G the exceptional locus.
Franco, Davide, DI GENNARO, VINCENZO, Franco Davide, Digennaro, Vincenzo, DI GENNARO, V, Vincenzo Di Gennaro, Davide Franco, Franco, D   +7 more
core   +1 more source

Serological Benefit of SARS‐CoV‐2 Vaccination Relative to Infection in Children With Acute Lymphoblastic Leukemia

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Children with acute lymphoblastic leukemia (ALL) are at risk of severe outcomes from SARS‐CoV‐2 (SCV2). In the post‐pandemic context, where most children have been infected with SCV2, there are limited data on whether vaccination remains beneficial in children with ALL.
Janna R. Shapiro, Freda Qi, Karen Colwill, Alina D. Dorogy, Ying Liu, Michelle Science, Anne‐Claude Gingras, James M. Rini, Sumit Gupta, Sarah Alexander, Shelly Bolotin, Tania H. Watts   +11 more
wiley   +1 more source

Singular Electromagnetics: From Phase Singularities to Optical Skyrmions and Beyond

Advanced Physics Research
Singular electromagnetics, also known as singular optics in the visible spectrum, is a branch of modern electromagnetics/optics that studies the solutions with nontrivial topological features to Maxwell's equations under different boundary conditions ...
Jie Yang, Juanna Jiang, Jiafu Wang, Xuezhi Zheng   +3 more
doaj   +1 more source

Holographic subregion complexity for singular surfaces [PDF]

The European Physical Journal C, 2017
Recently holographic prescriptions are proposed to compute quantum complexity of a given state in the boundary theory. A specific proposal known as `holographic subregion complexity' is supposed to calculate the the complexity of a reduced density matrix corresponding to a static subregion. We study different families of singular subregions in the dual
Bakhshaei, Elaheh, Mollabashi, Ali, Shirzad, Ahmad   +2 more
openaire   +3 more sources