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Related papers: Realization of Einsteins Machian Program

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Completely solved the equivalence problem for the "`Painleve 34"' equation.

Classical Analysis and ODEs · Mathematics 2014-07-15 Vera V. Kartak

We show that every K-contact Einstein manifold is Sasakian-Einstein and discuss several corollaries of this result.

Differential Geometry · Mathematics 2007-05-23 Charles P. Boyer , Krzysztof Galicki

An exact plane-symmetric non-stationary solution to the Einstein-Maxwell equations for a magnetoactive plasma is obtained and studied.

General Relativity and Quantum Cosmology · Physics 2011-01-06 Yu. G. Ignatyev , E. G. Chepkunova

In this paper, we first review Huei's formulation in which it is shown that the linearized Einstein equations can be written in the same form as the Maxwell equations. We eliminate some imperfections like the scalar potential which is ill…

General Relativity and Quantum Cosmology · Physics 2015-05-20 A. Bouda , A. Belabbas

In this paper, new inequalities connected with the celebrated Steffensen's integral inequality are proved.

Classical Analysis and ODEs · Mathematics 2016-04-08 M. W. Alomari , S. Hussain , Z. Liu

We prove the existence of Sasakian-Einstein metrics on infinitely many rational homology spheres in all odd dimensions greater than 3. In dimension 5 we obain somewhat sharper results. There are examples where the number of effective…

Differential Geometry · Mathematics 2008-11-26 Charles P. Boyer , Krzysztof Galicki

We present algorithms to work with iterated Eisenstein integrals that have recently appeared in the computation of multi-loop Feynman integrals. These algorithms allow one to analytically continue these integrals to all regions of the…

High Energy Physics - Theory · Physics 2020-03-18 Claude Duhr , Lorenzo Tancredi

We obtain new invariant Einstein metrics on the compact Lie groups $SO(n)$ ($n \geq 7$) which are not naturally reductive. This is achieved by imposing certain symmetry assumptions in the set of all left-invariant metrics on $SO(n)$ and by…

Differential Geometry · Mathematics 2016-02-09 Andreas Arvanitoyeorgos , Yusuke Sakane , Marina Statha

We give a complete geometrical description of the effective Hamiltonians common in nuclear shell model calculations. By recasting the theory in a manifestly geometric form, we reinterpret and clarify several points. Some of these results…

Nuclear Theory · Physics 2008-11-26 Simen Kvaal

We prove an improved form of an expectation of Polya and discuss several related questions

Number Theory · Mathematics 2025-12-02 Umberto Zannier

In the paper, the authors establish, by using Cauchy integral formula in the theory of complex functions, an integral representation for the geometric mean of $n$ positive numbers. From this integral representation, the geometric mean is…

Classical Analysis and ODEs · Mathematics 2014-03-07 Feng Qi , Xiao-Jing Zhang , Wen-Hui Li

This work proves certain general orbifold compactness results for spaces of Riemannian metrics, generalizing earlier results along these lines for Einstein metrics or metrics with bounded Ricci curvature. This is then applied to prove such…

Differential Geometry · Mathematics 2007-05-23 Michael T. Anderson

The evolution of the methods used to find solutions of Einstein's field equations during the last 100 years is described. Early papers used assumptions on the coordinate forms of the metrics. Since the 1950s more invariant methods have been…

General Relativity and Quantum Cosmology · Physics 2009-11-11 M. A. H. MacCallum

We prove that for every natural number k there are simply connected topological four-manifolds which have at leat k distinct smooth structures supporting Einstein metrics, and also have infinitely many distinct smooth structures not…

Geometric Topology · Mathematics 2007-05-23 V. Braungardt , D. Kotschick

This thesis is focused on some solvable quantum mechanical models and their associated symmetries.

Mathematical Physics · Physics 2013-05-27 Bikashkali Midya

A proof is given of Rosenthal's \(\ell_1\) theorem.

Functional Analysis · Mathematics 2014-03-06 Ioannis Gasparis

A family of general integral identities is derived and several applications of physical interest are presented

Mathematical Physics · Physics 2011-02-01 M L Glasser

We study Einstein manifolds admitting a transitive solvable Lie group of isometries (solvmanifolds). It is conjectured that these exhaust the class of noncompact homogeneous Einstein manifolds. J. Heber has showed that under certain simple…

Differential Geometry · Mathematics 2010-02-02 Jorge Lauret

In this article, we construct explicit analytical exact solutions to the six and higher dimensional Einstein-Maxwell theory. In all solutions, a subspace of the metric is the Eguchi-Hanson space where the metric functions are completely…

General Relativity and Quantum Cosmology · Physics 2017-09-28 A. M. Ghezelbash , V. Kumar

We present an improved incremental selection algorithm of the selection algorithm presented in [1] and prove all the selected conjectures.

Artificial Intelligence · Computer Science 2025-11-04 Jovial Cheukam Ngouonou , Ramiz Gindullin , Claude-Guy Quimper , Nicolas Beldiceanu , Remi Douence