Results 11 to 20 of about 317 (185)
Virasoro conjecture for the stable pairs descendent theory of simply connected 3-folds (with applications to the Hilbert scheme of points of a surface). [PDF]
J Lond Math Soc, 2022 Abstract This paper concerns the recent Virasoro conjecture for the theory of stable pairs on a 3‐fold proposed by Oblomkov, Okounkov, Pandharipande, and the author. Here we extend the conjecture to 3‐folds with non‐(p,p)$(p,p)$‐cohomology and we prove it in two specializations. For the first specialization, we let S$S$ be a surface with H1(S)=0$H^1(S)=
Moreira M.
europepmc +2 more sources
On the BPS Sector in AdS3/CFT2 Holography
Fortschritte der Physik, Volume 71, Issue 4-5, May 2023., 2023 Abstract The BPS sector in AdS3/CFT2$AdS_3/CFT_2$ duality has been fertile ground for the exploration of gauge/gravity duality, from the match between black hole entropy and the CFT elliptic genus to the construction of large families of geometrical microstates and the identification of the corresponding states in the CFT.
Emil J. Martinec +2 more
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Codes, vertex operators and topological modular forms
Bulletin of the London Mathematical Society, Volume 54, Issue 4, Page 1167-1196, August 2022., 2022 Abstract We describe a new link between the theory of topological modular forms and representations of vertex operator algebras obtained by certain lattices. The construction is motivated by the arithmetic Whitehead tower of the orthogonal groups. The tower discloses the role of codes in representation theory.
Nora Ganter, Gerd Laures
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Computer algebra in gravity research. [PDF]
Living Rev Relativ, 2018 MacCallum MAH.
europepmc +2 more sources
Homotopy Transfer and Effective Field Theory II: Strings and Double Field Theory
Fortschritte der Physik, Volume 70, Issue 2-3, March 2022., 2022 Abstract We continue our study of effective field theory via homotopy transfer of L∞$L_\infty$‐algebras, and apply it to tree‐level non‐Wilsonian effective actions of the kind discussed by Sen in which the modes integrated out are comparable in mass to the modes that are kept. We focus on the construction of effective actions for string states at fixed
Alex S. Arvanitakis +3 more
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Affine opers and conformal affine Toda
Journal of the London Mathematical Society, Volume 104, Issue 5, Page 2148-2207, December 2021., 2021 Abstract For g a Kac–Moody algebra of affine type, we show that there is an AutO‐equivariant identification between FunOpg(D), the algebra of functions on the space of g‐opers on the disc, and W⊂π0, the intersection of kernels of screenings inside a vacuum Fock module π0.
Charles A. S. Young
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Conformal Super‐Biderivations on Lie Conformal Superalgebras
Journal of Mathematics, Volume 2021, Issue 1, 2021., 2021 In this paper, the conformal super‐biderivations of two classes of Lie conformal superalgebras are studied. By proving some general results on conformal super‐biderivations, we determine the conformal super‐biderivations of the loop super‐Virasoro Lie conformal superalgebra and Neveu–Schwarz Lie conformal superalgebra.
Zhongxian Huang, Li Guo
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Holographic Description of Noncommutative Schwinger Effect
Advances in High Energy Physics, Volume 2021, Issue 1, 2021., 2021 We consider the phenomenon of spontaneous pair production in the presence of an external electric field for noncommutative Yang‐Mills theories. Using Maldacena’s holographic conjecture, the threshold electric field for pair production is computed from the quark/antiquark potential for noncommutative theories.
Udit Narayan Chowdhury, Michele Arzano
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The Maschke‐Type Theorem and Morita Context for BiHom‐Smash Products
Advances in Mathematical Physics, Volume 2021, Issue 1, 2021., 2021 Let (H, αH, βH, ωH, ψH, SH) be a BiHom‐Hopf algebra and (A, αA, βA) be an (H, αH, βH)‐module BiHom‐algebra. Then, in this paper, we study some properties on the BiHom‐smash product A#H. We construct the Maschke‐type theorem for the BiHom‐smash product A#H and form an associated Morita context AH,AHAA#H,A#HAAH,A#H.
Bingliang Shen +2 more
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Exact correlators in the Gaussian Hermitian matrix model
Physics Letters B, 2019 We present the W1+∞ constraints for the Gaussian Hermitian matrix model, where the constructed constraint operators yield the W1+∞ n-algebra. For the Virasoro constraints, we note that the constraint operators give the null 3-algebra.
Bei Kang +4 more
doaj +1 more source