Results 91 to 100 of about 205,228 (147)

RICCI ALMOST SOLITONS ON RIEMANNIAN MANIFOLDS

open access: yes, 2019
[[abstract]]The present paper deals with the study of Riemannian mani-folds whose metric is Ricci almost soliton with a conformal Killing vector field.
Akshoy Patra, Shyamal Kumar Hui
core  

Perturbed conformal field theory, nonlinear integral equations and spectral problems [PDF]

open access: yes, 2000
This thesis is concerned with various aspects of perturbed conformal field theory and the methods used to calculate finite-size effects of integrable quantum field theories.
Dunning, Tania Clare   +2 more
core  

On extended structures in affine Toda field theory [PDF]

open access: yes, 1996
Two areas of affine Toda field theory are explored in this thesis. First the introduction of a boundary into the real coupling affine Toda field theory.
Harder, Ulrich Karl Priedrich
core  

Randers Ricci soliton homogeneous nilmanifolds

open access: yes, 2021
Let $F$ be a left-invariant Randers metric on a simply connected nilpotent Lie group $N$, induced by a left-invariant Riemannian metric $\hat{\boldsymbol{a}}$ and a vector field $X$ which is $I_{\hat{\boldsymbol{a}}}(M)$-invariant.
Salimi Moghaddam, Hamid Reza
core  

Riemannian submersions whose total manifolds admit a Ricci soliton

open access: yes, 2019
In this paper, we study Riemannian submersions whose total manifolds admit a Ricci soliton. Here, we characterize any fiber of such a submersion is Ricci soliton or almost Ricci soliton.
Kilic, Erol, Meric, Semsi Eken
core   +1 more source

RICCI SOLITONS AND RICCI BI-CONFORMAL VECTOR FIELDS ON THE MODEL SPACE $Sol^{4}_{0}$

open access: yesFacta Universitatis, Series: Mathematics and Informatics
In this paper, we classify the Ricci solitons and the Ricci bi-conformal vector fields on model space $Sol^{4}_{0}$. We also show which of them are gradient vector fields and which one of those are Killing vector fields.
Mahin Sohrabpour, Shahroud Azami
openaire   +2 more sources

About rigidity of gradient almost Ricci Soliton

open access: yes, 2017
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESThis work is based on [1] and aims to show a result of rigidity for gradient almost Ricci soliton. We will prove that an almost Ricci soliton gradient with nonnegative scalar curvature,
Gomes, Maria Francisca de Sousa
core  

h-Almost Conformal η-Ricci–Bourguignon Solitons and Spacetime Symmetry in Barotropic Fluids Within f(R,T) Gravity

open access: yes
We investigate the geometric and physical properties of the h-almost conformal η-Ricci–Bourguignon soliton and its gradient form by employing a barotropic equation of state within the framework of f(R,T) gravity.
Sameh Shenawy   +3 more
core   +1 more source

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