نتایج جستجو برای: flat dimension

تعداد نتایج: 168545  

‎In this paper we first obtain the non-Riemannian Randers metrics of Douglas type on two-step homogeneous nilmanifolds of dimension five‎. ‎Then we explicitly give the flag curvature formulae and the $S$-curvature formulae for the Randers metrics of Douglas type on these spaces‎. ‎Moreover‎, ‎we prove that the only simply connected five-dimensional two-step homogeneous Randers nilmanifolds of D...

2005

We introduce a new equivalence relation for complete algebraic varieties with canonical singularities, generated by birational equivalence, by flat algebraic deformations (of varieties with canonical singularities), and by quasi-´ etale morphisms, i.e., morphisms which are unramified in codimen-sion 1. We denote the above equivalence by A.Q.E.D. : = Algebraic-Quasi-´ Etale-Deformation. A comple...

1997
Michael Dine

Baryogenesis from the coherent production of a scalar condensate along a flat direction of the supersymmetric extension of the standard model (AffleckDine mechanism) is investigated. Two important effects are emphasized. First, nonrenormalizable terms in the superpotential can lift standard model flat directions at large field values. Second, the finite energy density in the early universe indu...

2013
Teresa Sierpinska Joanna Kuc Maria Golebiewska

UNLABELLED Advanced tooth wear often results in lost vertical dimension and impacts facial aesthetics. Complex restorative treatment can replace the lost tooth structure and improve functional occlusal and facial skeleton parameters. PURPOSE The aim of the study is to assess changes in the morphological and functional occlusal parameters of the facial skeleton after prosthetic rehabilitation ...

Journal: :Science 1936
I Langmuir

WE live in a world of three dimensions. We measure objects by their length, breadth and thickness. The position of a point can be described by three coordinates , x, y and z. We can not escape from the inside of a spherical surface except by passing through it, but if we are standing in a circle on a surface we escape from it by stepping over it. It is amusing to try to imagine a fourth dimensi...

Journal: :Annals of Physics 2021

Flat bands imply lack of itinerancy due to some constraints that, in principle, results anomalous behaviors with randomness. By a molecular orbital (MO) representation the flat band systems, random MO models are introduced where degeneracy is preserved even The zero modes chiral symmetric system sublattice imbalance belong class. After explaining generic construction by MOs, several examples di...

2017

The mandible is having the condyloid process which articulates with the temporal fossa to form the temporomandibular joint, on which all the movements occur during the eating, chewing and even on talking also. It is having the articular facet on its head. This articulating facet is having different shapes and sizes which varies according to sex also. The shapes of condyloid processes are classi...

2008
M M Akbar G W Gibbons

The Dirichlet boundary-value problem and isoperimetric inequalities for positive definite regular solutions of the vacuum Einstein equations are studied in arbitrary dimensions for the class of metrics with boundaries admitting a U(1) action. In the case of trivial bundles, apart from the flat space solution with periodic identification, such solutions include the Euclideanised Schwarzschild me...

2008
João Miguel Augusto Penedones Miguel Sousa da Costa

This work explores the celebrated AdS/CFT correspondence [1] in the regime of high energy scattering in Anti–de Sitter (AdS) spacetime. In particular, we develop the eikonal approximation to high energy scattering in AdS and explore its consequences for the dual Conformal Field Theory (CFT). Using position space Feynman rules, we rederive the eikonal approximation for high energy scattering in ...

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