Results 51 to 60 of about 612 (101)

Warped product skew semi-invariant submanifolds of order 1 of a locally product Riemannian manifold

, 2014
We introduce warped product skew semi-invariant submanifolds of order $1$ of a locally product Riemannian manifold. We give a necessary and sufficient condition for skew semi-invariant submanifold of order 1 to be a locally warped product.
Taştan, Hakan Mete
core   +1 more source

Dimensional reduction of the heterotic string over nearly-Kähler manifolds

Journal of High Energy Physics, 2009
Our aim is to derive the effective action in four dimensions resulting by reducing dimensionally the ten-dimensional ${\cal N}=1$ heterotic supergravity coupled to ${\cal N}=1$ super Yang-Mills over manifolds admitting a nearly-Kähler structure.
Chatzistavrakidis, Athanasios, Zoupanos, George   +1 more
openaire   +5 more sources

Lectures on Nongeometric Flux Compactifications

, 2007
These notes present a pedagogical review of nongeometric flux compactifications. We begin by reviewing well-known geometric flux compactifications in Type II string theory, and argue that one must include nongeometric "fluxes" in order to have a ...
Acharya B S Douglas M R, Aldazabal G Camara P G Font A Ibanez L E, Ashok S, Banks T, Becker K, Becker M Dasgupta K, Blumenhagen R Kors B Lust D Stieberger S, Bouwknegt P Hannabuss K Mathai V, Brian Wecht, Brodzki J Mathai V Rosenberg J Szabo R J, Butti A, Camara P G Font A Ibanez L E, Cardoso G L, Catal-Ozer A, Cvetic M Liu T Schulz M B, D'Auria R, D'Auria R, Dabholkar A, Dabholkar A Hull C, Dasgupta K, de Carlos B Gurrieri S Lukas A Micu A, de Wit B Samtleben H Trigiante M, Denef F, Derendinger J P Petropoulos P M Prezas N, DeWolfe O, DeWolfe O Giryavets A Kachru S Taylor W, Douglas M R, Ellwood I, Ellwood I T, Flournoy A, Font A, Frey A R, Grana M, Grana M, Grana M, Grana M, Grana M, Grange P Schafer-Nameki S, Gray J, Gurrieri S, Hackett-Jones E Moutsopoulos G, Hellerman S, Hellerman S Walcher J, Hitchin N, Hull C M, Hull C M, Hull C M, Hull C M, Hull C M Reid-Edwards R A, Ihl M Robbins D Wrase T, Kachru S, Kachru S, Kaloper N, Kashani-Poor A K, Lawrence A Schulz M B Wecht B, Louis J, Louis J, Marchesano F Schulgin W, Mathai V Rosenberg J, Mathai V Rosenberg J M, Micu A, Minasian R, Palti E, Reid-Edwards R A, Scherk J, Schulz M B, Serone M, Shelton J, Shelton J, Trigiante M, Tripathy P K, Villadoro G, Villadoro G, Villadoro G Zwirner F, Wess J   +74 more
core   +1 more source

AdS$_4$ solutions of massive IIA from dyonic ISO(7) supergravity

, 2016
Explicit formulae are given for the consistent truncation of massive type IIA supergravity on the six-sphere to the SU(3)--invariant sector of $D=4$ ${\cal N}=8$ supergravity with dyonic ISO(7) gauging.
Varela, Oscar
core   +1 more source

Clairaut anti-invariant submersion from nearly Kaehler manifold

, 2020
In the present paper, we investigate geometric properties of Clairaut anti-invariant submersions whose total space is a nearly Kaehler manifold. We obtain condition for Clairaut anti-invariant submersion to be a totally geodesic map and also study Clairaut anti-invariant submersions with totally umbilical fibers.
Gupta, Punam, Rai, Amit Kumar
openaire   +3 more sources

Supersymmetric AdS(4) compactifications of IIA supergravity

, 2004
We derive necessary and sufficient conditions for N=1 compactifications of (massive) IIA supergravity to AdS(4) in the language of SU(3) structures. We find new solutions characterized by constant dilaton and nonzero fluxes for all form fields.
A. Butti, A. Giryavets, A. Lukas, C. Angelantonj, C. Núñez, D Lust, D Tsimpis, E. Abbena, F. Giani, G. Dall'Agata, J.H. Schwarz, J.P. Gauntlett, J.P. Gauntlett, J.P. Gauntlett, J.P. Gauntlett, K. Behrndt, K. Behrndt, K. Behrndt, M. Grana, M. Grana, M. Huq, O. DeWolfe, P. Kaste, P. Kaste, P.S. Aspinwall, S. Chiossi, S. Chiossi, S. Chiossi, S. Gurrieri, S. Kachru, T. House, U. Gran   +31 more
core   +2 more sources

Sasakian Geometry, Holonomy, and Supersymmetry

, 2007
In this expository article we discuss the relations between Sasakian geometry, reduced holonomy and supersymmetry. It is well known that the Riemannian manifolds other than the round spheres that admit real Killing spinors are precisely Sasaki-Einstein ...
Boyer, Charles P., Galicki, Krzysztof
core   +3 more sources

CR-warped product submanifolds of locally conformal Kaehler manifolds [PDF]

, 2010
In the present paper characterizations in terms of the canonical structures P and F on a CR-submanifold of a locally conformal Kaehler manifold are worked out under which the sub manifold reduces to a CR-warped product ...
Jamal Nargis, Khan Viqar Azam
core   +1 more source

Heterotic Flux Attractors

, 2010
We find attractor equations describing moduli stabilization for heterotic compactifications with generic SU(3)-structure. Complex structure and K\"ahler moduli are treated on equal footing by using SU(3)xSU(3)-structure at intermediate steps.
A Strominger, A Strominger, A-K Kashani-Poor, B Carlos de, C Caviezel, D Andriot, D Cassani, D Cassani, F Larsen, F Larsen, Finn Larsen, G Dall’Agata, G Lopes Cardoso, G Lopes Cardoso, H Ooguri, J Shelton, J Shelton, K Becker, K Becker, K Dasgupta, L Anguelova, L Anguelova, Lilia Anguelova, M Becker, M Graña, M Graña, M Graña, M Graña, M Ihl, N Hitchin, O DeWolfe, R Kallosh, Ross O’Connell, S Bellucci, S Ferrara, S Ferrara, S Gurrieri, SB Giddings, T Kimura   +38 more
core   +1 more source

Conformal Killing forms on Riemannian manifolds

, 2001
Conformal Killing forms are a natural generalization of conformal vector fields on Riemannian manifolds. They are defined as sections in the kernel of a conformally invariant first order differential operator.
Semmelmann, U.
core   +2 more sources