Results 11 to 20 of about 35,584 (262)
Multi-planarizable quivers, orientifolds, and conformal dualities
Journal of High Energy Physics, 2023 We study orientifold projections of families of four-dimensional N $$ \mathcal{N} $$ = 1 toric quiver gauge theories. We restrict to quivers that have the unusual property of being associated with multiple periodic planar diagrams which give rise, in ...
Antonio Amariti +5 more
doaj +1 more source
Singularity categories of deformations of Kleinian singularities [PDF]
Algebra & Number Theory, 2020 Let $G$ be a finite subgroup of $\text{SL}(2,\Bbbk)$ and let $R = \Bbbk[x,y]^G$ be the coordinate ring of the corresponding Kleinian singularity. In 1998, Crawley-Boevey and Holland defined deformations $\mathcal{O}^ $ of $R$ parametrised by weights $ $.
openaire +3 more sources
Singularities interacting with interfaces incorporating surface elasticity under plane strain deformations [PDF]
Theoretical and Applied Mechanics, 2014 We consider problems involving singularities such as point force, point moment, edge dislocation and a circular Eshelby’s inclusion in isotropic bimaterials in the presence of an interface incorporating surface/interface elasticity under plane ...
Wang Xu, Schiavone Peter
doaj +1 more source
, 2006 Deformation quantization on varieties with singularities offers perspectives that are not found on manifolds. Essential deformations are classified by the Harrison component of Hochschild cohomology, that vanishes on smooth manifolds and reflects ...
A.M. Garsia +16 more
core +2 more sources
Mass deformations of unoriented quiver theories
Journal of High Energy Physics, 2020 We study the interplay between mass deformations and unoriented projections of super-conformal quiver gauge theories resulting from D3-branes at (toric) Calabi-Yau singularities.
Massimo Bianchi +3 more
doaj +1 more source
Small deformations of normal singularities [PDF]
Mathematische Annalen, 1986 The author studies the behavior, under deformations, of normal analytic singularities and their numerical invariants. Let \(\pi: (X,x)\to (C,0)\) be a germ of deformation of normal isolated singularity of relative dimension \(n\geq 2\) with the singular locus S over a one-dimensional parameter space C.
openaire +1 more source
Direct numerical evaluation of multi-loop integrals without contour deformation
European Physical Journal C: Particles and Fields, 2022 We propose a method for computing numerically integrals defined via $$i \epsilon $$ i ϵ deformations acting on single-pole singularities. We achieve this without an explicit analytic contour deformation. Our solution is then used to produce precise Monte
Roberto Pittau, Bryan Webber
doaj +1 more source
Deformation theory of sandwiched singularities
Duke Mathematical Journal, 1998 A sandwiched singularity is a normal surface singularity which admits a birational map to \(({\mathbb C},0)\). The paper under review is concerned with deformations of sandwiched singularities. Namely, deformations of sandwiched singularities are described via deformations of decorated curves.
Jong, T. de, Straten, D. van
openaire +4 more sources
Deformations of Pairs of Kleinian Singularities
International Mathematics Research Notices, 2023 Abstract Kleinian singularities, that is, the varieties corresponding to the algebras of invariants of Kleinian groups are of fundamental importance for Algebraic geometry, Representation theory, and Singularity theory. The filtered deformations of these algebras of invariants were classified by Brieskorn (the commutative case) and Losev
openaire +2 more sources
The Wigner caustic on shell and singularities of odd functions [PDF]
, 2012 We study the Wigner caustic on shell of a Lagrangian submanifold L of affine symplectic space. We present the physical motivation for studying singularities of the Wigner caustic on shell and present its mathematical definition in terms of a generating ...
Arnol’d +19 more
core +1 more source