Results 21 to 30 of about 35,584 (262)

Yang–Baxter deformations, AdS/CFT, and twist-noncommutative gauge theory

Nuclear Physics B, 2016
We give an AdS/CFT interpretation to homogeneous Yang–Baxter deformations of the AdS5×S5 superstring as noncommutative deformations of the dual gauge theory, going well beyond the canonical noncommutative case.
Stijn J. van Tongeren
doaj   +1 more source

Recent Developments in Instantons in Noncommutative ℝ𝟒

Advances in Mathematical Physics, 2010
We review recent developments in noncommutative deformations of instantons in ℝ4. In the operator formalism, we study how to make noncommutative instantons by using the ADHM method, and we review the relation between topological charges and ...
Akifumi Sako
doaj   +1 more source

N $$ \mathcal{N} $$ = 1 conformal dualities from unoriented chiral quivers

Journal of High Energy Physics, 2022
We study various orientifold projections of 4d N $$ \mathcal{N} $$ = 1 toric gauge theories, associated with CY singularities known as L a,b,a /ℤ2, with a + b even. We obtain superconformal chiral theories that have the same central charge, anomalies and
Antonio Amariti, Massimo Bianchi, Marco Fazzi, Salvo Mancani, Fabio Riccioni, Simone Rota   +5 more
doaj   +1 more source

Deformations of canonical singularities [PDF]

Journal of the American Mathematical Society, 1999
We prove that small deformations of canonical singularities are canonical.
openaire   +3 more sources

Vector perturbations of Kerr-AdS5 and the Painlevé VI transcendent

Journal of High Energy Physics, 2020
We analyze the Ansatz of separability for Maxwell equations in generically spinning, five-dimensional Kerr-AdS black holes. We find that the parameter μ introduced in [1] can be interpreted as apparent singularities of the resulting radial and angular ...
Julián Barragán Amado, Bruno Carneiro da Cunha, Elisabetta Pallante   +2 more
doaj   +1 more source

MULTISCALE SPARSE APPEARANCE MODELING AND SIMULATION OF PATHOLOGICAL DEFORMATIONS

ICTACT Journal on Image and Video Processing, 2017
Machine learning and statistical modeling techniques has drawn much interest within the medical imaging research community. However, clinically-relevant modeling of anatomical structures continues to be a challenging task.
Rami Zewail, Ahmed Hag-ElSafi
doaj   +1 more source

Matrix factorizations and elliptic fibrations

Nuclear Physics B, 2016
I use matrix factorizations to describe branes at simple singularities of elliptic fibrations. Each node of the corresponding Dynkin diagrams of the ADE-type singularities is associated with one indecomposable matrix factorization which can be deformed ...
Harun Omer
doaj   +1 more source

Hamiltonian motions of plane curves and formation of singularities and bubbles

, 2010
A class of Hamiltonian deformations of plane curves is defined and studied. Hamiltonian deformations of conics and cubics are considered as illustrative examples. These deformations are described by systems of hydrodynamical type equations.
Konopelchenko, B. G., Ortenzi, G.
core   +1 more source

Deformations of Calabi–Yau varieties with k-liminal singularities

Forum of Mathematics, Sigma
The goal of this paper is to describe certain nonlinear topological obstructions for the existence of first-order smoothings of mildly singular Calabi–Yau varieties of dimension at least $4$ .
Robert Friedman, Radu Laza
doaj   +1 more source

T-branes, monopoles and S-duality

Journal of High Energy Physics, 2017
M2 branes probing T-brane backgrounds in M-theory with ADE surface singularities perceive deformations on their worldvolume superpotentials by monopole operators.
Andrés Collinucci, Simone Giacomelli, Roberto Valandro   +2 more
doaj   +1 more source