Results 1 to 10 of about 786,797 (33)
, 2006 We consider an open string version of the topological twist previously proposed for sigma-models with G2 target spaces. We determine the cohomology of open strings states and relate these to geometric deformations of calibrated submanifolds and to flat ...
de Boer, Jan +3 more
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Detection of Galactic Center source G2 at 3.8 $\mu$m during periapse passage [PDF]
, 2014 We report new observations of the Galactic Center source G2 from the W. M. Keck Observatory. G2 is a dusty red object associated with gas that shows tidal interactions as it nears closest approach with the Galaxy's central black hole.
Becklin, Eric E. +16 more
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On generalized G2-structures and T-duality [PDF]
, 2018 This is a short note on generalized G2-structures obtained as a consequence of a T-dual construction given in del Barco et al. (2017). Given classical G2-structure on certain seven dimensional manifolds, either closed or co-closed, we obtain integrable ...
del Barco, Viviana Jorgelina +1 more
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A CR twistor space of a G2-manifold [PDF]
, 2010 Let M be a G2-manifold. We consider an almost CR-structure on the sphere bundle of unit tangent vectors on M, called the CR twistor space. This CR-structure is integrable if and only if M is a holonomy G2 manifold. We interpret G2-instanton bundles as CR-
Verbitsky, Misha
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Cohomogeneity-one G2-structures
, 2001 G2-manifolds with a cohomogeneity-one action of a compact Lie group G are studied. For G simple, all solutions with holonomy G2 and weak holonomy G2 are classified.
Andrew Swann +13 more
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ATM and Artemis promote homologous recombination of radiation-induced DNA double-strand breaks in G2 [PDF]
, 2009 Homologous recombination (HR) and non‐homologous end joining (NHEJ) represent distinct pathways for repairing DNA double‐strand breaks (DSBs). Previous work implicated Artemis and ATM in an NHEJ‐dependent process, which repairs a defined subset of ...
Aaron A Goodarzi +13 more
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On the geometry of closed G2-structure
, 2005 We give an answer to a question posed recently by R.Bryant, namely we show that a compact 7-dimensional manifold equipped with a G2-structure with closed fundamental form is Einstein if and only if the Riemannian holonomy of the induced metric is ...
A. Kovalev +18 more
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Rigid G2-Representations and motives of Type G2 [PDF]
, 2013 We prove an effective Hilbert Irreducibility result for residual realizations of a family of motives with motivic Galois group ...
Dettweiler, Michael, Schmidt, Johannes
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, 2010 This paper is a review of current developments in the study of moduli spaces of G2 manifolds. G2 manifolds are 7-dimensional manifolds with the exceptional holonomy group G2.
Beasley C. +10 more
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, 2005 We provide a simple parametrization for the group G2, which is analogous to the Euler parametrization for SU(2). We show how to obtain the general element of the group in a form emphasizing the structure of the fibration of G2 with fiber SO(4) and base H,
Alberto Della Vedova +7 more
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