Results 1 to 10 of about 935 (235)
Topological strings on elliptic fibrations [PDF]
We study topological string theory on elliptically fibered Calabi-Yau threefolds using mirror symmetry. We compute higher genus topological string amplitudes and express these in terms of polynomials of functions constructed from the special geometry of the moduli space. The polynomials are fixed by the holomorphic anomaly equations supplemented by the
Murad Alim, Emanuel Scheidegger
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Knot invariants and topological strings [PDF]
23 pages, harvmac, 3 figures; An error in the Schwinger computation in two dimensions corrected; references ...
Hirosi Ooguri, Cumrun Vafa
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Topological G2 and Spin(7) strings at 1-loop from double complexes
We study the topological G 2 and Spin(7) strings at 1-loop. We define new double complexes for supersymmetric NSNS backgrounds of string theory using generalised geometry.
Anthony Ashmore +2 more
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Intertwining operator and integrable hierarchies from topological strings
In [1], Nakatsu and Takasaki have shown that the melting crystal model behind the topological strings vertex provides a tau-function of the KP hierarchy after an appropriate time deformation.
Jean-Emile Bourgine +1 more
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Topological Strings on Non-commutative Resolutions [PDF]
AbstractIn this paper we propose a definition of torsion refined Gopakumar–Vafa (GV) invariants for Calabi–Yau threefolds with terminal nodal singularities that do not admit Kähler crepant resolutions. Physically, the refinement takes into account the charge of five-dimensional BPS states under a discrete gauge symmetry in M-theory.
Sheldon Katz +3 more
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TOPOLOGICAL ZERO-THICKNESS COSMIC STRINGS [PDF]
In this paper, based on the gauge potential decomposition and the ϕ-mapping theories, we study the topological structures and properties of the cosmic strings that arise in the Abelian–Higgs gauge theory in the zero-thickness limit. After a detailed discussion, we conclude that the topological tensor current introduced in our model is a better and ...
Yi-Shi Duan, Zhen-Bin Cao
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Topological Strings and Integrable Hierarchies [PDF]
We consider the topological B-model on local Calabi-Yau geometries. We show how one can solve for the amplitudes by using W-algebra symmetries which encodes the symmetries of holomorphic diffeomorphisms of the Calabi-Yau. In the highly effective fermionic/brane formulation this leads to a free fermion description of the amplitudes. Furthermore we argue
Mina Aganagic +2 more
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Confining strings with topological term [PDF]
11 pages ...
M. C. Diamantini +2 more
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Toda 3-point functions from topological strings [PDF]
Vladimir Mitev +2 more
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Instantons, Topological Strings, and Enumerative Geometry [PDF]
We review and elaborate on certain aspects of the connections between instanton counting in maximally supersymmetric gauge theories and the computation of enumerative invariants of smooth varieties. We study in detail three instances of gauge theories in
Richard J. Szabo
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