Results 21 to 30 of about 13,746 (101)

From integral manifolds and metrics to potential maps

open access: yesAtti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2004
Our paper contains two main results: (1) the integral manifolds of a distribution together with two Riemann metrics produce potential maps which are in fact least squares approximations of the starting integral manifolds; (2) the least squares energy ...
Udriste, C
doaj   +1 more source

Ricci-like Solitons with Arbitrary Potential and Gradient Almost Ricci-like Solitons on Sasaki-like Almost Contact B-metric Manifolds

open access: yesResults in Mathematics, 2022
Ricci-like solitons with arbitrary potential are introduced and studied on Sasaki-like almost contact B-metric manifolds. It is proved that the Ricci tensor of such a soliton is the vertical component of both B-metrics multiplied by a constant. It is established that gradient almost Ricci-like solitons have constant soliton coefficients.
openaire   +3 more sources

Semiclassical strings in marginally deformed toric AdS/CFT

open access: yes, 2010
We study string solutions in the beta-deformed Sasaki-Einstein gauge/gravity dualities. We find that the BPS point-like strings move in the submanifolds where the two U(1) circles shrink to zero size.
AA Tseytlin   +15 more
core   +1 more source

Sasaki-Einstein Manifolds [PDF]

open access: yes, 2010
This article is an overview of some of the remarkable progress that has been made in Sasaki-Einstein geometry over the last decade, which includes a number of new methods of constructing Sasaki-Einstein manifolds and obstructions.Comment: 58 pages ...
Sparks, James
core   +1 more source

Toric Vaisman Manifolds

open access: yes, 2016
Vaisman manifolds are strongly related to K\"ahler and Sasaki geometry. In this paper we introduce toric Vaisman structures and show that this relationship still holds in the toric context.
Pilca, Mihaela
core   +1 more source

Non-singlet Baryons in Less Supersymmetric Backgrounds [PDF]

open access: yes, 2012
We analyze the holographic description of non-singlet baryons in various backgrounds with reduced supersymmetries and/or confinement. We show that they exist in all AdS_5xY_5 backgrounds with Y_5 an Einstein manifold bearing five form flux, for a number ...
A Brandhuber   +49 more
core   +2 more sources

Hidden Symmetries of Euclideanised Kerr-NUT-(A)dS Metrics in Certain Scaling Limits [PDF]

open access: yes, 2012
The hidden symmetries of higher dimensional Kerr-NUT-(A)dS metrics are investigated. In certain scaling limits these metrics are related to the Einstein-Sasaki ones.
Vilcu, Gabriel Eduard, Visinescu, Mihai
core   +3 more sources

Metallic deformation on para-Sasaki-like para-Norden manifold

open access: yesAIMS Mathematics
<p>The main goal of this paper is to define the concept of metallic deformation through a relation between the metallic structure and paracontact structure on an almost paracontact para-Norden manifold. A Riemannian connection is obtained on a metallically deformed para-Sasaki-like para-Norden manifold.
Rabia Cakan Akpınar, Esen Kemer Kansu
openaire   +2 more sources

Operator Counting for N=2 Chern-Simons Gauge Theories with Chiral-like Matter Fields

open access: yes, 2012
The localization formula of Chern-Simons quiver gauge theory on $S^3$ nicely reproduces the geometric data such as volume of Sasaki-Einstein manifolds in the large-$N$ limit, at least for vector-like models.
A Amariti   +33 more
core   +1 more source

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