Results 21 to 30 of about 28,276 (148)

Contact geometry in superconductors and New Massive Gravity

Physics Letters B, 2021
The defining property of every three-dimensional ε-contact manifold is shown to be equivalent to requiring the fulfillment of London's equation in 2+1 electromagnetism. To illustrate this point, we show that every such manifold that is also K-contact and
Daniel Flores-Alfonso, Cesar S. Lopez-Monsalvo, Marco Maceda   +2 more
doaj   +1 more source

Geometric classifications of k-almost Ricci solitons admitting paracontact metrices

Open Mathematics, 2023
The prime objective of the approach is to give geometric classifications of kk-almost Ricci solitons associated with paracontact manifolds. Let M2n+1(φ,ξ,η,g){M}^{2n+1}\left(\varphi ,\xi ,\eta ,g) be a paracontact metric manifold, and if a KK-paracontact
Li Yanlin, Patra Dhriti Sundar, Alluhaibi Nadia, Mofarreh Fatemah, Ali Akram   +4 more
doaj   +1 more source

Soliton on Sasakian manifold endowed with quarter-symmetric non-metric connection on the tangent bundle [PDF]

Arab Journal of Mathematical Sciences
PurposeThe purpose of this paper is to study the properties of the solitons on Sasakian manifold on the tangent bundle with respect to quarter symmetric non metric connection.Design/methodology/approachWe used the vertical and complete lifts, Ricci ...
Lalnunenga Colney, Rajesh Kumar
doaj   +1 more source

Comments on AdS2 solutions of D=11 Supergravity [PDF]

, 2006
We study the supersymmetric solutions of 11-dimensional supergravity with a factor of $AdS_2$ made of M2-branes. Such solutions can provide gravity duals of superconformal quantum mechanics, or through double Wick rotation, the generic bubbling geometry ...
A. Donos, E. Witten, H. Lin, I.R. Klebanov, J.B. Gutowski, J.B. Gutowski, J.M. Maldacena, J.P. Gauntlett, J.P. Gauntlett, J.P. Gauntlett, J.P. Gauntlett, J.P. Gauntlett, J.P. Gauntlett, Jong-Dae Park, M.M. Caldarelli, N. Kim, N. Kim, Nakwoo Kim, T.Z. Husain, U. Gran, U. Gran   +20 more
core   +4 more sources

W8 - Curvature Tensor in Generalized Sasakian Space Forms

Ratio Mathematica, 2023
The generalized Sasakian-space-forms and their properties have been examined by various researchers such as Alegre and Carriazo [2008], Prakasha [2012], Sarkar and Akbar [2014], Shanmukha et al.
Gyanvendra Pratap Singh, R Rajan, Anand Kumar Mishra, Pawan Prajapati   +3 more
doaj   +1 more source

∗−Conformal η−Ricci Solitons on α−Cosymplectic Manifolds

International Journal of Analysis and Applications, 2021
The object of this paper is to study ∗−conformal η−Ricci solitons on α−cosymplectic manifolds. First, α−cosymplectic manifolds admitting ∗−conformal η−Ricci solitons satisfying the conditions R(ξ, .) · S and S(ξ, .) · R = 0 are being studied.
Abdul Haseeb, D. G. Prakasha, H. Harish
doaj  

The Zamkovoy canonical paracontact connection on a para-Kenmotsu manifold

Cubo, 2021
The object of the paper is to study a type of canonical linear connection, called the Zamkovoy canonical paracontact connection on a para-Kenmotsu manifold.
D. G. Prakasha, H. Harish, P. Veeresha, Venkatesha   +3 more
doaj   +1 more source

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

, 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

Integrable Background Geometries [PDF]

, 2014
This work has its origins in an attempt to describe systematically the integrable geometries and gauge theories in dimensions one to four related to twistor theory. In each such dimension, there is a nondegenerate integrable geometric structure, governed
Calderbank, David M. J.
core   +4 more sources

Holonomy of Einstein Lorentzian manifolds [PDF]

, 2010
The classification of all possible holonomy algebras of Einstein and vacuum Einstein Lorentzian manifolds is obtained. It is shown that each such algebra appears as the holonomy algebra of an Einstein (resp., vacuum Einstein) Lorentzian manifold, the ...
Alekseevsky D V, Anton S Galaev, Berger M, Bergery-Berard L, Besse A L, Brannlund J, Bryant R, Coley A, Coley A, Figueroa-O'Farrill J M, Galaev A S, Galaev A S, Galaev A S, Ghanam R, Gibbons G W, Hall G S, Hernandez R, Joyce D, Joyce D, Leistner T, Wu H   +20 more
core   +1 more source