Results 231 to 240 of about 887 (261)

On a class of homogeneous spaces in general relativity

Bulletin de la Classe des sciences, 1964
Summary. — The only homogenous 4 dimensional Einstein spaces with non-vanishing scalar curvature are the spaces of constant curvature, a family of «null-spaces » and a topological product of 2 2-spaces of constant curvature.
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Variations on the cohomology of loop spaces on generalized homogeneous spaces

Proceedings of the Steklov Institute of Mathematics, 2006
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On the operators related to C.W.T on general homogeneous spaces

Journal of Pseudo-Differential Operators and Applications, 2017
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Sajadi Rad, O. D., Esmaeelzadeh, F., Kamyabi Gol, R. A.   +2 more
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Homogeneous spaces generated by the group of automorphisms of a Lie group

Journal of Soviet Mathematics, 1985
This paper presents fundamental results for the theory of homogeneous spaces generated by a pair (G,\(\Gamma)\), where G is a Lie group, and \(\Gamma\) is a finite Abelian group of automorphisms of the Lie group G. These spaces constitute a generalization of the so-called (G,\(\Phi)\)- spaces which in turn generalize the symmetric spaces. For (G,\(\Phi)
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Random walk on the homogeneous spaces of a group and generalized coherent states

Physica A: Statistical Mechanics and its Applications, 1984
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BERTOTTI G, RASETTI, Mario
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Supremal Generators of Spaces of Homogeneous Functions

1999
In this paper we study the supremal representations of positively homogeneous of degree one and symmetric positively homogeneous of degree two functions, defined on a reflexive Banach space.
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On the role of the Besov spaces for the solutions of the generalized burgers equation in homogeneous Sobolev spaces

Nonlinear Analysis: Theory, Methods & Applications, 2003
It is studied the existence of global solutions for an initial-value problem associated to a generalized Burgers equation. The initial data is considered in homogeneous Sobolev spaces. If, in addition, the initial data belongs to a suitable homogeneous Sobolev space \(L^{p,s}\) (for \(s>-1\) and \(p>1\)) the obtained solution belongs to \(L^\infty ([0,
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Generalized homogeneous Besov spaces associated with the Riemann–Liouville operator

International Journal of Mathematics, 2015
We define and study generalized homogeneous Besov spaces connected with the Riemann–Liouville operator. We establish some results of density of subspaces, completeness and continuous embedding. Also, a discrete equivalent norm is examined.
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Homogeneous geodesics in five-dimensional generalized symmetric spaces.

2002
Some properties of the homogeneous geodesics of certain types on five-dimensional generalized symmetric spaces are studied.
CALVARUSO, Giovanni, R. A. MARINOSCI
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RDS on Homogeneous Spaces of the General Linear Group

1998
Following the pioneering work of Furstenberg [153], the study of the asymptotic behavior (law of large numbers, positivity of top Lyapunov exponent alias Furstenberg constant, simplicity of the Lyapunov spectrum, central limit theorem, large deviations principle, etc.) of products of i.i.d. random matrices (more generally, products of i.i.d.
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