Zobrazeno 1 - 10
of 85
pro vyhledávání: '"Sadov, V."'
Publikováno v:
Nucl.Phys. B505 (1997) 153-164
We consider geometric engineering of N=1 supersymmetric QFTs with matter in terms of a local model for compactification of F-theory on Calabi-Yau fourfold. By bringing 3-branes near 7-branes we engineer N=1 supersymmetric $SU(N_c)$ gauge theory with
Externí odkaz:
http://arxiv.org/abs/hep-th/9612052
Publikováno v:
Nucl.Phys.B481:215-252,1996
Using ``Tate's algorithm,'' we identify loci in the moduli of F-theory compactifications corresponding to enhanced gauge symmetry. We apply this to test the proposed F-theory/heterotic dualities in six dimensions. We recover the perturbative gauge sy
Externí odkaz:
http://arxiv.org/abs/hep-th/9605200
Publikováno v:
Nucl.Phys. B463 (1996) 420-434
In the presence of a D-brane a string theory develops a new subsector. We show that for curved D-branes the corresponding sector is a (partially twisted) topological field theory. We use this result to compute the degeneracy of 2-branes wrapped aroun
Externí odkaz:
http://arxiv.org/abs/hep-th/9511222
Publikováno v:
Nucl.Phys. B463 (1996) 398-414
We study the mechanism for appearance of massless solitons in type II string compactifications. We find that by combining $T$-duality with strong/weak duality of type IIB in 10 dimensions enhanced gauge symmetries and massless solitonic hypermultiple
Externí odkaz:
http://arxiv.org/abs/hep-th/9510225
Publikováno v:
Nucl.Phys. B448 (1995) 166-186
By considering a (partial) topological twisting of supersymmetric Yang-Mills compactified on a 2d space with `t Hooft magnetic flux turned on we obtain a supersymmetric $\sigma$-model in 2 dimensions. For N=2 SYM this maps Donaldson observables on pr
Externí odkaz:
http://arxiv.org/abs/hep-th/9501096
Autor:
Astashkevich, Alexander, Sadov, V.
Publikováno v:
Commun.Math.Phys. 170 (1995) 503-528
We compute the quantum cohomology rings of the partial flag manifolds F_{n_1\cdots n_k}=U(n)/(U(n_1)\times \cdots \times U(n_k)). The inductive computation uses the idea of Givental and Kim. Also we define a notion of the vertical quantum cohomology
Externí odkaz:
http://arxiv.org/abs/hep-th/9401103
Autor:
Sadov, V.
Publikováno v:
Commun.Math.Phys. 173 (1995) 77
(In the revised version the relevant aspect of noncompactness of the moduli of instantons is discussed. It is shown nonperturbatively that any BRST trivial deformation of A-model which does not change the ranks of BRST cohomology does not change the
Externí odkaz:
http://arxiv.org/abs/hep-th/9310153
Autor:
Sadov, V.
We study the nonunitary representations of N=2 Super Virasoro algebra for the rational central charges c<3. The resolutions for the irreducible representations of N=2 SVir in terms of the "2-d gravity modules" are obtained and their characters are co
Externí odkaz:
http://arxiv.org/abs/hep-th/9304049
Autor:
Sadov, V.
We study N=2 SuperVirasoro SCFT for the generic value of the central charge. The main tool is the nonstandard bosonisation suggested in \ref\rRoz{L. Rozansky a letter to M. Bershadsky, 1989}, \ref\rSeBGR{B. Gato-Rivera, A. Semikhatov Phys. Letts. B29
Externí odkaz:
http://arxiv.org/abs/hep-th/9302059
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.