Results 41 to 50 of about 3,784,223 (275)

Witten’s top Chern class on the moduli space of higher spin curves [PDF]

open access: yes, 2002
This paper is a sequel to [9]. Its goal is to verify that the virtual top Chern class c 1/r in the Chow group of the moduli space of higher spin curves \(\overline M _{{g,n}}^{{1/r}} \) constructed in [9], satisfies all the axioms of spin virtual class ...
A. Polishchuk
semanticscholar   +1 more source

Phase transitions in the diagonal ensemble of two-band Chern insulators

open access: yesNew Journal of Physics, 2016
We identify a new class of phase transitions when calculating the Hall conductance of two-band Chern insulators in the long-time limit after a global quench of the Hamiltonian.
Pei Wang, Stefan Kehrein
doaj   +1 more source

Orientifold limits of singular F-theory vacua

open access: yesNuclear Physics B, 2020
We construct global orientifold limits of singular F-theory vacua whose associated gauge groups are SO(3), SO(5), SO(6), F4, SU(4), and Spin(7). For each limit we show a universal tadpole relation is satisfied, which is a homological identity whose ...
James Fullwood, Dongxu Wang
doaj   +1 more source

Chern-Simons type characteristic classes of Abelian lattice gauge theory

open access: yesPhysics Letters B
In this paper, we extend the definition of the Chern-Simons type characteristic classes in the continuous case to Abelian lattice gauge theory. Then, we show that the exterior differential of the k-th Chern-Simons type characteristic class is exactly ...
Mengyao Wu, Jie Yang
doaj   +1 more source

New T-duality for Chern-Simons theory

open access: yesJournal of High Energy Physics, 2019
It has recently pointed out that a four-dimensional analog of Chern-Simons theory provides an elegant framework for understanding integrable models with spectral parameters.
Masahito Yamazaki
doaj   +1 more source

Non-K\"ahler Calabi-Yau manifolds

open access: yes, 2015
We study the class of compact complex manifolds whose first Chern class vanishes in the Bott-Chern cohomology. This class includes all manifolds with torsion canonical bundle, but it is strictly larger.
Tosatti, Valentino
core   +1 more source

Continuity Equation of Transverse Kähler Metrics on Sasakian Manifolds

open access: yesMathematics
We introduce the continuity equation of transverse Kähler metrics on Sasakian manifolds and establish its interval of maximal existence. When the first basic Chern class is null (resp. negative), we prove that the solution of the (resp.
Yushuang Fan, Tao Zheng
doaj   +1 more source

The colored Jones polynomials as vortex partition functions

open access: yesJournal of High Energy Physics, 2021
We construct 3D N $$ \mathcal{N} $$ = 2 abelian gauge theories on S $$ \mathbbm{S} $$ 2 × S $$ \mathbbm{S} $$ 1 labeled by knot diagrams whose K-theoretic vortex partition functions, each of which is a building block of twisted indices, give the colored ...
Masahide Manabe   +2 more
doaj   +1 more source

Symplectic structure free Chern-Simons Theory

open access: yes, 1998
The second class constraints algebra of the abelian Chern-Simons theory is rigorously studied in terms of the Hamiltonian embedding in order to obtain the first class constraint system.
Banerjee R   +13 more
core   +1 more source

Solutions of the Strominger System via Stable Bundles on Calabi-Yau Threefolds

open access: yes, 2012
We prove that a given Calabi-Yau threefold with a stable holomorphic vector bundle can be perturbed to a solution of the Strominger system provided that the second Chern class of the vector bundle is equal to the second Chern class of the tangent bundle.
A. Sen   +34 more
core   +1 more source

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