Results 31 to 40 of about 510,591 (285)
Semi-Invariant Riemannian Submersions with Semi-Symmetric Non-Metric Connection
Journal of New Theory, 2021 In this paper, we investigate semi-invariant Riemannian submersion from a Kaehler manifold with semi-symmetric non-metric connection to a Riemannian manifold. We study the geometry of foliations with semi-symmetric non-metric connection.
Ramazan Sarı
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Geometry for the accelerating universe [PDF]
, 2006 The Lorentzian spacetime metric is replaced by an area metric which naturally emerges as a generalized geometry in quantum string and gauge theory. Employing the area metric curvature scalar, the gravitational Einstein-Hilbert action is re-interpreted as
C. Rovelli +5 more
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On some class of functional-differential equations
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2012 {In this paper we consider special functional-differential equations arising in geometry for the metric functions. We prove a theorem on the form of the metric functions.
V. A. Kyrov
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Geometry of left-invariant Randers metric on the Heisenberg groups [PDF]
Arab Journal of Mathematical Sciences, 2023 Purpose – In this paper, we consider the Heisenberg groups which play a crucial role in both geometry and theoretical physics. Design/methodology/approach – In the first part, we retrieve the geometry of left-invariant Randers metrics on the Heisenberg ...
Ghodratallah Fasihi-Ramandi +1 more
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On the Geometry of Connections with Totally Skew-Symmetric Torsion on Manifolds with Additional Tensor Structures and Indefinite Metrics [PDF]
, 2010 This paper is a survey of results obtained by the authors on the geometry of connections with totally skew-symmetric torsion on the following manifolds: almost complex manifolds with Norden metric, almost contact manifolds with B-metric and almost ...
Gribachev, Kostadin +2 more
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Entropy, 2020 This work participates in the research for potential areas of observational evidence of quantum effects on geometry in a black hole astrophysical context. We consider properties of a family of loop quantum corrected regular black hole (BHs) solutions and
Daniela Pugliese, Giovanni Montani
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Distinct Angles and Angle Chains in Three Dimensions [PDF]
Discrete Mathematics & Theoretical Computer Science, 2023 In 1946, Erd\H{o}s posed the distinct distance problem, which seeks to find the minimum number of distinct distances between pairs of points selected from any configuration of $n$ points in the plane.
Ruben Ascoli +8 more
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Symmetry breaking via internal geometry
International Journal of Mathematics and Mathematical Sciences, 2005 Gauge theories commonly employ complex vector-valued fields to reduce symmetry groups through the Higgs mechanism of spontaneous symmetry breaking.
Andrew Talmadge
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A toy model of a fake inflation [PDF]
, 2006 Discontinuities in non linear field theories propagate through null geodesics in an effective metric that depends on its dynamics and on the background geometry.
Huguet, E., Novello, M., Queva, J.
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On the Geometry of Metric Sites
Journal of Algebra, 1995 A metric site is a pair \(({\mathcal C}, \tau)\) where \({\mathcal C}\) is a category and \(\tau \) a covariant functor into a category of topological spaces supplying \({\mathcal C}\) with a geometric structure in terms of a Grothendieck topology; the covers of the latter are universal liftings of open covers of the ``underlying'' spaces.
openaire +1 more source