Results 41 to 50 of about 1,196,150 (335)
Lorentzian homogeneous spaces admitting a homogeneous structure of type T1+T3
We show that a Lorentzian homogeneous space admitting a homogeneous structure of type T1 + T3 is either a (locally) symmetric space or a singular homogeneous plane wave.Comment: 7 pages, Latex2e, a small note and a reference ...
Ambrose +7 more
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k-Dirac operator and parabolic geometries [PDF]
The principal group of a Klein geometry has canonical left action on the homogeneous space of the geometry and this action induces action on the spaces of sections of vector bundles over the homogeneous space.
A Čap +12 more
core +1 more source
On the Volume in Homogeneous Spaces [PDF]
Guldin-Pappus’s theorem about the volume of a solid of rotation in the euclidean space has been generalized in two ways. G. Koenigs [1] and J. Hadamard [2] proved that the volume generated by a 1-parametric motion of a surface D bounded by a closed curve c is equal to where are quantities attached to D with respect to a rectangular coordinate system ...
openaire +2 more sources
On Ricci Curvature of a Homogeneous Generalized Matsumoto Finsler Space
The characterization of Finsler spaces with Ricci curvature is an ancient and cumbersome one. In this paper, we have derived an expression of Ricci curvature for the homogeneous generalized Matsumoto change.
Yanlin Li +3 more
doaj +1 more source
The graviton propagator in homogeneous and isotropic spacetimes [PDF]
We find the propagator for gravitons in spacetimes with homogeneous and isotropic flat (k=0) spatial sections. The method also applies to the k = + 1 and K = −1 cases.
Allen, B.
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On the product of homogeneous spaces
Within the class of Tikhonov spaces, and within the class of topological groups, most of the natural questions concerning ''productive closure'' of the subclasses of countably compact and pseudocompact spaces are answered by the following three well-known results: (1) [ZFC] There is a countably compact Tikhonov space X such that \(X\times X\) is not ...
Jan van Mill, W. Wistar Comfort
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Elementary approach to homogeneous C*-algebras [PDF]
A C*-algebra is n-homogeneous (where n is finite) if every its nonzero irreducible representation acts on an n-dimensional Hilbert space. An elementary proof of Fell's characterization of n-homogeneous C*-algebras (by means of their spectra) is presented.
Niemiec, Piotr
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Harmonic analysis on a finite homogeneous space
In this paper, we study harmonic analysis on finite homogeneous spaces whose associated permutation representation decomposes with multiplicity. After a careful look at Frobenius reciprocity and transitivity of induction, and the introduction of three ...
Scarabotti, Fabio, Tolli, Filippo
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Conjugate complex homogeneous spaces with non-isomorphic fundamental groups [PDF]
Let X=G/H be the quotient of a connected reductive algebraic C-group G defined over the field of complex numbers C by a finite subgroup H. We describe the topological fundamental group of the homogeneous space X, which is nonabelian when H is nonabelian.
Borovoi, Mikhail, Cornulier, Yves
core +3 more sources
The homogeneous structure in a Cartan space
The homogeneus almost product structure on the Finsler space have Lieviu Popescu studied. In this paper we study the integrability conditions for the homogeneus product structure in Cartan space with Miron connection.
Edmundas Mazėtis
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