Results 31 to 40 of about 4,869 (103)

Semi-invariant Riemannian submersions from nearly Kaehler manifolds [PDF]

International Journal of Geometric Methods in Modern Physics, 2020
We study semi-invariant Riemannian submersions from a nearly Kaehler manifold to a Riemannian manifold. It is well known that the vertical distribution of a Riemannian submersion is always integrable therefore, we derive condition for the integrability of horizontal distribution of a semi-invariant Riemannian submersion and also investigate the ...
Rupali Kaushal, Rashmi Sachdeva, Rakesh Kumar, Rakesh Kumar Nagaich   +3 more
openaire   +1 more source

Dipole-Deformed Bound States and Heterotic Kodaira Surfaces [PDF]

, 2006
We study a particular N = 1 confining gauge theory with fundamental flavors realised as seven branes in the background of wrapped five branes on a rigid two-cycle of a non-trivial global geometry.
Alexander, Alishahiha, Aprodu, Atiyah, Becker, Becker, Becker, Becker, Becker, Becker, Becker, Becker, Becker, Bergman, Bergman, Brînzănescu, Brînzănescu, Brînzănescu, Candelas, Cardoso, Casero, Chakravarty, Chiossi, Chiou, Cvetic, Cyrier, Dasgupta, Dasgupta, Dasgupta, Dasgupta, Dasgupta, Dasgupta, de Wit, Derendinger, Dine, Falcitelli, Ferrara, Frey, Friedrich, Fu, Ganor, Gauduchon, Gauntlett, Gauntlett, Gauntlett, Gava, Giddings, Goldstein, Gukov, Gukov, Gurrieri, Gurrieri, Gurrieri, Gursoy, Imamura, Ivanov, Josh Guffin, Keshav Dasgupta, Knauf, Lee, Li, Louis, Lu, Lunin, Maldacena, Manousselis, Micu, Ouyang, Pando Zayas, Rhiannon Gwyn, Salamon, Schwarz, Schwarz, Seiberg, Sen, Sen, Sheldon Katz, Tu, Witten   +78 more
core   +2 more sources

On CR-submanifolds of the six-dimensional sphere

International Journal of Mathematics and Mathematical Sciences, 1995
We consider proper CR-submanifolds of the six-dimensional sphere S6. We prove that S6 does not admit compact proper CR-submanifolds with non-negative sectional curvature and integrable holomorphic distribution.
M. A. Bashir
doaj   +1 more source

The N=4 effective action of type IIA supergravity compactified on SU(2)-structure manifolds [PDF]

, 2011
We study compactifications of type IIA supergravity on six-dimensional manifolds with SU(2) structure and compute the low-energy effective action in terms of the non-trivial intrinsic torsion.
Danckaert, Thomas, Louis, Jan, Martínez-Pedrera, Danny, Spanjaard, Bastiaan, Triendl, Hagen   +4 more
core   +5 more sources

CR-hypersurfaces of the six-dimensional sphere

International Journal of Mathematics and Mathematical Sciences, 1994
We proved that there does not exist a proper CR-hypersurface of S6 with parallel second fundamental form. As a result of this we showed that S6 does not admit a proper CR-totally umbilical hypersurface.
M. A. Bashir
doaj   +1 more source

Nearly-Kaehler dimensional reduction of the heterotic string

, 2010
The effective action in four dimensions resulting from the ten-dimensional N=1 heterotic supergravity coupled to N=1 supersymmetric Yang-Mills upon dimensional reduction over nearly-Kaehler manifolds is discussed.
Behrndt, Benmachiche, Bergshoeff, Burgess, Candelas, Cassani, Castellani, Caviezel, Chapline, Chatzistavrakidis, Chatzistavrakidis, Derendinger, Derendinger, Dolan, Forgacs, Frey, Govindarajan, Govindarajan, Grana, Gross, Gukov, Gukov, Gurrieri, Gurrieri, Gurrieri, House, Kachru, Kaloper, Kapetanakis, Kashani-Poor, Koerber, Lechtenfeld, Lopes Cardoso, Lüst, Lüst, Manousselis, Manousselis, Micu, Mueller-Hoissen, Witten   +39 more
core   +1 more source

Geometry of warped product semi-slant submanifolds of Kenmotsu manifolds

, 2017
In this paper, we study semi-slant submanifolds and their warped products in Kenmotsu manifolds. The existence of such warped products in Kenmotsu manifolds is shown by an example and a characterization.
Uddin, Siraj
core   +1 more source

M-theory Compactifications on Manifolds with G2 Structure

, 2004
In this paper we study M-theory compactifications on manifolds of G2 structure. By computing the gravitino mass term in four dimensions we derive the general form for the superpotential which appears in such compactifications and show that beside the ...
Acharya B S, Acharya B S, Acharya B Witten E, Alexander S Becker K Becker M Dasgupta K Knauf A Tatar R, Andrei Micu, Atiyah M, Barrett A B Lukas A, Beasley C, Becker K, Becker K, Becker K Becker M Dasgupta K Tatar R, Becker M, Becker M Dasgupta K, Behrndt K, Behrndt K Cvetic M, Behrndt K Cvetic M, Cardoso G L, Carlos B de Lukas A Morris S, Cascales J F G, Cvetic M Shiu G Uranga A M, Dall'Agata G, Frey A R, Gauntlett J P, Gauntlett J P, Gauntlett J P Martelli D Sparks J Waldram D, Grana M, Gurrieri S, Gurrieri S, House T Lukas A, Joyce D D, Kachru S, Kaste P, Kaste P, Lukas A, Lukas A Saffin P M, Martelli D, Mayer C Mohaupt T, Micu A, Serone M, Thomas House, Wess J, Witten E, Witten E   +42 more
core   +3 more sources

Rigidity theorems of Lagrangian submanifolds in the homogeneous nearly K\"ahler $\mathbb{S}^6(1)$

, 2019
In this paper, we study Lagrangian submanifolds of the homogeneous nearly K\"ahler $6$-dimensional unit sphere $\mathbb{S}^6(1)$. As the main result, we derive a Simons' type integral inequality in terms of the second fundamental form for compact ...
Hu, Zejun, Yin, Bangchao, Yin, Jiabin
core   +1 more source

Warped Product Pointwise Hemi-Slant Submanifolds of Nearly Kaehler Manifolds

, 2023
In this paper, we introduce the notion of pointwise hemi-slant submanifolds of nearly Kaehler manifolds. Further, we study their warped products and prove the necessary and sufficient condition that a pointwise hemi-slant submanifold to be a warped product manifold.
Lamia Saeed Alqahtani, Siraj Uddin, Rawan Bossly   +2 more
openaire   +1 more source