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Coulomb branches with complex singularities [PDF]

open access: yesJournal of High Energy Physics, 2018
We construct 4d superconformal field theories (SCFTs) whose Coulomb branches have singular complex structures. This implies, in particular, that their Coulomb branch coordinate rings are not freely generated.
Philip C. Argyres, Mario Martone
doaj   +8 more sources

New conformal mapping for adaptive resolving of the complex singularities of Stokes wave. [PDF]

open access: yesProc Math Phys Eng Sci, 2017
A new highly efficient method is developed for computation of traveling periodic waves (Stokes waves) on the free surface of deep water. A convergence of numerical approximation is determined by the complex singularites above the free surface for the ...
Lushnikov PM   +2 more
europepmc   +2 more sources

Complex-Temperature Singularities of Ising Models [PDF]

open access: yesNuclear Physics B - Proceedings Supplements, 1995
We report new results on complex-temperature properties of Ising models. These include studies of the $s=1/2$ model on triangular, honeycomb, kagom\'e, $3 \cdot 12^2$, and $4 \cdot 8^2$ lattices. We elucidate the complex--$T$ phase diagrams of the higher-
Domb   +15 more
core   +3 more sources

Extension Phenomena for Holomorphic Geometric Structures [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2009
The most commonly encountered types of complex analytic G-structures and Cartan geometries cannot have singularities of complex codimension 2 or more.
Benjamin McKay
doaj   +9 more sources

Complex singularities and PDEs

open access: yes, 2015
In this paper we give a review on the computational methods used to characterize the complex singularities developed by some relevant PDEs. We begin by reviewing the singularity tracking method based on the analysis of the Fourier spectrum.
Caflisch, R. E.   +3 more
core   +3 more sources

Rigorous reconstruction of gluon propagator in the presence of complex singularities

open access: yesSciPost Physics Proceedings, 2022
It has been suggested that the Landau-gauge gluon propagator has complex singularities, which invalidates the K\"all\'en-Lehmann spectral representation.
Yui Hayashi, Kei-Ichi Kondo
doaj   +1 more source

Complexity=anything: singularity probes

open access: yesJournal of High Energy Physics, 2023
Abstract We investigate how the complexity=anything observables proposed by [1, 2] can be used to investigate the interior geometry of AdS black holes. In particular, we illustrate how the flexibility of the complexity=anything approach allows us to systematically probe the geometric properties of black hole singularities.
Eivind Jørstad   +2 more
openaire   +4 more sources

ON COMPLEX HOMOGENEOUS SINGULARITIES [PDF]

open access: yesBulletin of the Australian Mathematical Society, 2019
We study the singularity at the origin of $\mathbb{C}^{n+1}$ of an arbitrary homogeneous polynomial in $n+1$ variables with complex coefficients, by investigating the monodromy characteristic polynomials $\unicode[STIX]{x1D6E5}_{l}(t)$ as well as the relation between the monodromy zeta function and the Hodge spectrum of the singularity.
QUY THUONG LÊ   +2 more
openaire   +3 more sources

Spatiotemporal Organization of Electromechanical Phase Singularities during High-Frequency Cardiac Arrhythmias

open access: yesPhysical Review X, 2022
Ventricular fibrillation (VF) is a life-threatening electromechanical dysfunction of the heart associated with complex spatiotemporal dynamics of electrical excitation and mechanical contraction of the heart muscle.
A. Molavi Tabrizi   +5 more
doaj   +1 more source

Koszul Complexes and Hypersurface Singularities [PDF]

open access: yesProceedings of the American Mathematical Society, 1994
The behavior of Poincaré series and Betti numbers of complex projective hypersurfaces in terms of their singularities is compared.
Choudary, A. D. Raza, Dimca, A.
openaire   +3 more sources

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