搜索结果: 31-45 共查到“理学 flat”相关记录78条 . 查询时间(0.023 秒)
Intrinsic Shapes of Very Flat Elliptical Galaxies
Intrinsic Shapes Flat Elliptical Galaxies
font style='font-size:12px;'>
2011/1/11
Photometric data from the literature is combined with triaxial mass models to derive variation in the intrinsic shapes of the light distribution of elliptical galaxies NGC 720, 2768 and 3605. The infe...
Asymptotically flat, stable black hole solutions in Einstein--Yang-Mills--Chern-Simons theory
Asymptotically flat stable black hole solutions
font style='font-size:12px;'>
2010/12/23
We construct finite mass, asymptotically flat black hole solutions in d=5 Einstein--Yang-Mills--Chern-Simons theory. Our results indicate the existence of a second order phase transition between Reiss...
Mechanical Normal Forms of Knots and Flat Knots
Mechanical Normal Forms Knots Flat Knots
font style='font-size:12px;'>
2010/11/24
A new type of knot energy is presented via real life experiments involving a thin resilient metallic tube. Knotted in different ways, the device mechanically acquires a uniquely determined (up to iso...
Third order Lovelock black holes in flat space
Third order Lovelock black holes flat space
font style='font-size:12px;'>
2010/12/20
In this paper, we present the asymptotically flat black hole solutions for arbitrary values of coefficients in third order Lovelock gravity, and then derive gravitational mass, Hawking temperature and...
Blow-up phenomena for scalar-flat metrics on manifolds with boundary
Blow-up phenomena scalar-flat metrics
font style='font-size:12px;'>
2010/11/23
Let (M,g) be a compact n-dimensional Riemannian manifold with boundary. This article is concerned with the set of scalar-flat metrics on M which are in the conformal class of g and have the boundary ...
Conformally flat Lorentzian manifolds with special holonomy
Conformally flat Lorentzian manifolds special holonomy
font style='font-size:12px;'>
2010/11/23
Connected holonomy groups of conformally flat Lorentzian manifolds are classified. It is shown that among conformally flat Lorentzian manifolds there are two classes of spaces with special holonomy: ...
Scalar--flat Kähler metrics with conformal Bianchi V symmetry
General Relativity and Quantum Cosmology (gr-qc) High Energy Physics - Theory (hep-th) Differential Geometry (math.DG) Exactly Solvable and Integrable Systems (nlin.SI)
font style='font-size:12px;'>
2010/11/11
We provide an affirmative answer to a question posed by Tod \cite{Tod:1995b}, and construct all four-dimensional Kahler metrics with vanishing scalar curvature which are invariant under the conformal ...
Asymptotically flat, stable black hole solutions in Einstein--Yang-Mills--Chern-Simons theory
stable black hole solutions Einstein--Yang-Mills--Chern-Simons theory
font style='font-size:12px;'>
2010/12/21
We construct finite mass, asymptotically flat black hole solutions in d = 5 Einstein–Yang-Mills–Chern-Simons theory. Our results indicate the existence of a second order phase transition between Reiss...
Topological phases and flat surface bands in superconductors without inversion symmetry
Topological phases flat surface bands superconductors without inversion symmetry
font style='font-size:12px;'>
2010/11/18
We examine different topological phases in three-dimensional non-centrosymmetric superconductors with time-reversal symmetry by using three different types of topological invariants. Due to the bulk b...
Flat band in the core of topological defects: bulk-vortex correspondence in topological superfluids with Fermi points
Flat band topological superfluids Fermi points
font style='font-size:12px;'>
2010/11/24
We consider the dimensional crossover in the topological matter, which involves the transformation of different types of topologically protected zeroes in the fermionic spectrum. In the considered cas...
Cosmological evolution and statefinder diagnostic for new holographic dark energy model in non flat universe
Dark energy；New holographic model；Statefinder diagnostic；Cosmological evolution
font style='font-size:12px;'>
2010/12/20
In this paper, the holographic dark energy model with new infrared cut-off proposed by Granda
and Oliveros has been investigated in spatially non flat universe.
Faithfully flat descent for projectivity of modules
projectivity modules
font style='font-size:12px;'>
2010/11/8
We give a self-contained exposition of the proof of faithfully flat descent for projectivity of modules. This fills a gap in the proof given in the literature.
A Series Solution to the Luminosity Distance in a Flat LCDM Universe
Cosmological distances Numerical methods
font style='font-size:12px;'>
2010/11/15
Cosmological observations indicate that our universe is flat and dark energy (DE)
dominated at present. The luminosity distance plays an important role in the investigation
of the evolution and stru...
A Series Solution to the Luminosity Distance in a Flat LCDM Universe
Cosmological distances Numerical methods
font style='font-size:12px;'>
2010/12/21
Cosmological observations indicate that our universe is flat and dark energy (DE)dominated at present. The luminosity distance plays an important role in the investigation of the evolution and structu...
Dimensional crossover in topological matter: Evolution of the multiple Dirac point in the layered system to the flat band on the surface
Dimensional crossover topological matter multiple Dirac point
font style='font-size:12px;'>
2010/11/24
We consider the dimensional crossover in the topological matter, which involves the ransformation of different types of topologically protected zeroes in the fermionic spectrum. In the considered case...