Results 21 to 30 of about 381 (158)
Yang-Baxter deformations of the AdS4 × ℂℙ3 superstring sigma model
The gravity dual of β-deformed ABJM theory can be obtained by a TsT transformation of AdS4 × ℂℙ3. We present a supercoset construction of ℂℙ3 to obtain this gravity dual theory as a Yang-Baxter deformation.
René Negrón, Victor O. Rivelles
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On the Cartan matrix of Mackey algebras [PDF]
Let k k be a field of characteristic
openaire +3 more sources
Exact self-duality in a modified Skyrme model
We propose a modification of the Skyrme model that supports a self-dual sector possessing exact non-trivial finite energy solutions. The action of such a theory possesses the usual quadratic and quartic terms in field derivatives, but the couplings of ...
L.A. Ferreira
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N $$ \mathcal{N} $$ = 2 Conformal SYM theories at large N $$ \mathcal{N} $$
We consider a class of N $$ \mathcal{N} $$ = 2 conformal SU(N) SYM theories in four dimensions with matter in the fundamental, two-index symmetric and anti-symmetric representations, and study the corresponding matrix model provided by localization on a ...
M. Beccaria +4 more
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Strings with non-relativistic conformal symmetry and limits of the AdS/CFT correspondence
We find a Polyakov-type action for strings moving in a torsional Newton-Cartan geometry. This is obtained by starting with the relativistic Polyakov action and fixing the momentum of the string along a non-compact null isometry.
Troels Harmark +4 more
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The masses of affine Toda theories are known to correspond to the entries of a Perron-Frobenius eigenvector of the relevant Cartan matrix. The Lagrangian of the theory can be expressed in terms of a suitable eigenvector of a Coxeter element in the Weyl ...
Martin T. Luu
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We consider generalized Melvin-like solutions associated with nonexceptional Lie algebras of rank 4 (namely, A4, B4, C4, and D4) corresponding to certain internal symmetries of the solutions.
S. V. Bolokhov, V. D. Ivashchuk
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On generalized Melvin solution for the Lie algebra $$E_6$$ E6
A multidimensional generalization of Melvin’s solution for an arbitrary simple Lie algebra $${\mathcal {G}}$$ G is considered. The gravitational model in D dimensions, $$D \ge 4$$ D≥4 , contains n 2-forms and $$l \ge n$$ l≥n scalar fields, where n is the
S. V. Bolokhov, V. D. Ivashchuk
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On the tightness of left‐invariant contact structures
Abstract We prove that all left‐invariant contact structures on three‐dimensional Lie groups are tight. The argument is based on Riemannian methods and establishes a unique factorization property for any Lie group admitting a left‐invariant contact structure, other than SU(2)$\mathrm{SU}(2)$. We then make use of such factorization property to construct
Eugenio Bellini
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On characterizations of g n-helices with Euler angles
Curvature and torsion, in their most general forms, are defined in terms of Euler angle-based parametrization via the Cartan matrix, which leads to the Serret-Frenet equations.
Altinok Mesut, Kula Levent
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