Results 61 to 70 of about 1,131 (182)

RICCI SOLITONS IN $\alfa$ COSYMPLECTIC MANIFOLDS

open access: yes, 2018
The object of the present paper is to study Ricci solitons in \alfacosymplectic manifolds. Projective, pseudo projective and Weyl conformal curvature in an \alfa cosymplectic manifolds admitting Ricci solitons have been studied under certain curvature ...
Singh, Jay Prakash   +1 more
core   +1 more source

ETA-RICCI SOLITONS ON LORENTZIAN PARA-KENMOTSU MANIFOLDS

open access: yes, 2021
The objective of present research article is to investigate the geometric properties of $\eta$-Ricci solitons on Lorentzian para-Kenmotsu manifolds. In this manner, we consider $\eta$-Ricci solitons on Lorentzian para-Kenmotsu manifolds satisfying $R ...
Singh, Abhishek   +2 more
core   +1 more source

Topology of Kähler Ricci solitons

open access: yesJournal of Differential Geometry, 2015
We prove that any shrinking Kahler Ricci soliton has only one end, and that any expanding Kahler Ricci soliton with proper potential has only one end.
Munteanu, Ovidiu, Wang, Jiaping
openaire   +3 more sources

On Moduli Spaces of Ricci Solitons [PDF]

open access: yesThe Journal of Geometric Analysis, 2013
18 ...
PODESTA', FABIO, Andrea Spiro
openaire   +2 more sources

Differentiable Manifolds and Geometric Structures

open access: yesMathematics
This editorial presents 26 research articles published in the Special Issue entitled Differentiable Manifolds and Geometric Structures of the MDPI Mathematics journal, which covers a wide range of topics particularly from the geometry of (pseudo ...
Adara M. Blaga
doaj   +1 more source

Photoacoustics for Direct Light‐Guiding Inside Transparent and Scattering Media

open access: yesLaser &Photonics Reviews, Volume 19, Issue 8, April 17, 2025.
A novel method for guiding light in transparent and scattering media without external components is presented. A pulsed laser and absorptive material generate photoacoustic pressure waves within the medium, creating refractive index gradients for sub‐microsecond light guiding.
Pietro Ricci   +3 more
wiley   +1 more source

Four-dimensional pseudo-Riemannian homogeneous Ricci solitons

open access: yes, 2015
We consider four-dimensional homogeneous pseudo-Riemannian manifolds with nontrivial isotropy and completely classify the cases giving rise to non-trivial homogeneous Ricci solitons. In particular, we show the existence of non-compact homogeneous (and
Giovanni Calvaruso   +3 more
core   +1 more source

$\eta$-RICCI SOLITONS AND GRADIENT RICCI SOLITONS ON $\delta$- LORENTZIAN TRANS-SASAKIAN MANIFOLDS

open access: yes, 2021
The objective of the present research article is to study the $\delta$-Lorentzian trans-Sasakian manifolds conceding the $\eta$-Ricci solitons and gradient Ricci soliton.
Siddiqi, Mohd Danish, Akyol, Mehmet Akif
core   +1 more source

On gradient Ricci solitons with symmetry [PDF]

open access: yesProceedings of the American Mathematical Society, 2009
We study gradient Ricci solitons with maximal symmetry. First we show that there are no nontrivial homogeneous gradient Ricci solitons. Thus, the most symmetry one can expect is an isometric cohomogeneity one group action. Many examples of cohomogeneity one gradient solitons have been constructed.
Petersen, Peter, Wylie, William
openaire   +2 more sources

Mabuchi Kähler solitons versus extremal Kähler metrics and beyond

open access: yesBulletin of the London Mathematical Society, Volume 57, Issue 3, Page 692-710, March 2025.
Abstract Using the Yau–Tian–Donaldson type correspondence for v$v$‐solitons established by Han–Li, we show that a smooth complex n$n$‐dimensional Fano variety admits a Mabuchi soliton provided it admits an extremal Kähler metric whose scalar curvature is strictly less than 2(n+1)$2(n+1)$.
Vestislav Apostolov   +2 more
wiley   +1 more source

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