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564
ElectricMagnetic duality and the geometric Langlands program
, 2006
"... The geometric Langlands program can be described in a natural way by compactifying on a Riemann surface C a twisted version of N = 4 super YangMills theory in four dimensions. The key ingredients are electricmagnetic duality of gauge theory, mirror symmetry of sigmamodels, branes, Wilson and ’t H ..."
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Cited by 294 (26 self)
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The geometric Langlands program can be described in a natural way by compactifying on a Riemann surface C a twisted version of N = 4 super YangMills theory in four dimensions. The key ingredients are electricmagnetic duality of gauge theory, mirror symmetry of sigmamodels, branes, Wilson and ’t
On homalgebras with surjective twisting
"... A homassociative structure is a set A together with a binary operation ⋆ and a selfmap α such that an αtwisted version of associativity is fulfilled. In this paper, we assume that α is surjective. We show that in this case, under surprisingly weak additional conditions on the multiplication, the b ..."
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Cited by 30 (1 self)
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A homassociative structure is a set A together with a binary operation ⋆ and a selfmap α such that an αtwisted version of associativity is fulfilled. In this paper, we assume that α is surjective. We show that in this case, under surprisingly weak additional conditions on the multiplication
Seeing stars: Exploiting class relationships for sentiment categorization with respect to rating scales
 In Proc. 43st ACL
, 2005
"... We address the ratinginference problem, wherein rather than simply decide whether a review is “thumbs up ” or “thumbs down”, as in previous sentiment analysis work, one must determine an author’s evaluation with respect to a multipoint scale (e.g., one to five “stars”). This task represents an int ..."
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Cited by 298 (2 self)
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an interesting twist on standard multiclass text categorization because there are several different degrees of similarity between class labels; for example, “three stars ” is intuitively closer to “four stars ” than to “one star”. We first evaluate human performance at the task. Then, we apply a metaalgorithm
Integration of twisted Poisson structures
 J. GEOM. PHYS
, 2003
"... Poisson manifolds may be regarded as the infinitesimal form of symplectic groupoids. Twisted Poisson manifolds considered by ˇ Severa and Weinstein [14] are a natural generalization of the former which also arises in string theory. In this note it is proved that twisted Poisson manifolds are in bije ..."
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Cited by 17 (1 self)
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are in bijection with a (possibly singular) twisted version of symplectic groupoids.
A New TwIST: TwoStep Iterative Shrinkage/Thresholding Algorithms for Image Restoration
 IEEE TRANSACTIONS ON IMAGE PROCESSING
, 2007
"... Iterative shrinkage/thresholding (IST) algorithms have been recently proposed to handle a class of convex unconstrained optimization problems arising in image restoration and other linear inverse problems. This class of problems results from combining a linear observation model with a nonquadratic ..."
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Cited by 183 (26 self)
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. For noninvertible observation operators, we introduce a monotonic version of TwIST (MTwIST); although the convergence proof does not apply to this scenario, we give experimental evidence that MTwIST exhibits similar speed gains over IST. The effectiveness of the new methods are experimentally confirmed on problems
Twisted supersymmetric gauge theories and orbifold lattices
 JHEP
, 2006
"... Abstract: We examine the relation between twisted versions of the extended supersymmetric gauge theories and supersymmetric orbifold lattices. In particular, for the N = 4 SYM in d = 4, we show that the continuum limit of orbifold lattice reproduces the twist introduced by Marcus, and the examples a ..."
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Cited by 29 (2 self)
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Abstract: We examine the relation between twisted versions of the extended supersymmetric gauge theories and supersymmetric orbifold lattices. In particular, for the N = 4 SYM in d = 4, we show that the continuum limit of orbifold lattice reproduces the twist introduced by Marcus, and the examples
The twisted twin of Grigorchuk’s group
, 2009
"... We study a twisted version of Grigorchuk’s first group, and stress its similarities and differences to its model. In particular, we show that it admits a finite endomorphic presentation, has infiniterank multiplier, and does not have the congruence property. ..."
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Cited by 6 (1 self)
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We study a twisted version of Grigorchuk’s first group, and stress its similarities and differences to its model. In particular, we show that it admits a finite endomorphic presentation, has infiniterank multiplier, and does not have the congruence property.
TWISTED CONJUGACY SEPARABLE GROUPS
, 2006
"... Abstract. We study the notion of twisted conjugacy separability (essentially introduced in our previous paper for a proof of twisted version of BurnsideFrobenius theorem) and some related properties. We give examples of groups with and without this property and study its behavior under some extensi ..."
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Cited by 1 (0 self)
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Abstract. We study the notion of twisted conjugacy separability (essentially introduced in our previous paper for a proof of twisted version of BurnsideFrobenius theorem) and some related properties. We give examples of groups with and without this property and study its behavior under some
Stacks of Twisted Modules and Integral Transforms
, 2000
"... Stacks were introduced by Grothendieck and Giraud and are, roughly speaking, sheaves of categories. Kashiwara developed the theory of twisted modules, which are objects of stacks locally equivalent to stacks of modules over sheaves of rings. In this paper we recall these notions, and we develop the ..."
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Cited by 20 (7 self)
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the formalism of operations for stacks of twisted modules. As an application, we state a twisted version of an adjunction formula which is of use in the theory of integral transforms for sheaves and Dmodules.
Results 1  10
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564