RedTram News Search Engine
Русский  English Українська  Français  Polski  Deutsch  Italiano  Español  中文   
21 November 2009 year (time zone GMT 00:00)  Number of sources in English: 4957
Navigating the themes
Navigating the regions
All Themes Science & Education Sciences Mathematics World
Mathematics (World) RSS 2.0

Localized Matter and Geometry of the Dirac Field. (arXiv:0911.3671v1 [math-ph])

21.11.2009 03:30    arxiv.org
Within the framework of classical field theory, the connection between theDirac field as the field of matter and the spacetime metric is discussed.Polarization structure of the Dirac field is shown to be rich enough todetermine the spacetime metric locally and
World    Mathematics    Articles
Localized Matter and Geometry of the Dirac Field. (arXiv:0911.3671v1 [math-ph])


On the exact discretization of the classical harmonic oscillator equation. (arXiv:0911.3672v1 [math-ph])

21.11.2009 03:30    arxiv.org
We discuss the exact discretization of the classical harmonic oscillatorequation (including the inhomogeneous case and multidimensionalgeneralizations) with a special stress on the energy integral. We present andsuggest some numerical applications.
World    Mathematics    Articles

The local relaxation flow approach to universality of the local statistics for random matrices. (arXiv:0911.3687v1 [math-ph])

21.11.2009 03:29    arxiv.org
We present a generalization of the method of the local relaxation flow toestablish the universality of local spectral statistics of a broad class oflarge random matrices. We show that the local distribution of the eigenvaluescoincides with the local statistics of
World    Mathematics    Articles
The local relaxation flow approach to universality of the local statistics for random matrices. (arXiv:0911.3687v1 [math-ph])

Quantum Geometry of 3-Dimensional Lattices and Tetrahedron Equation. (arXiv:0911.3693v1 [math-ph])

21.11.2009 03:29    arxiv.org
We study geometric consistency relations between angles of 3-dimensional (3D)circular quadrilateral lattices -- lattices whose faces are planarquadrilaterals inscribable into a circle. We show that these relations generatecanonical transformations of a remarkable "ultra-local" Poisson bracket algebradefined on discrete 2D surfaces
World    Mathematics    Articles
Quantum Geometry of 3-Dimensional Lattices and Tetrahedron Equation. (arXiv:0911.3693v1 [math-ph])


Skin effect with arbitrary specularity in Maxwellian plasma. (arXiv:0911.3726v1 [math-ph])

21.11.2009 03:29    arxiv.org
The problem of skin effect with arbitrary specularity in maxwellian plasmawith specular--diffuse boundary conditions is solved. A new analytical methodis developed that makes it possible to to obtain a solution up to an arbitrarydegree of accuracy. The method is based
World    Mathematics    Articles
Skin effect with arbitrary specularity in Maxwellian plasma. (arXiv:0911.3726v1 [math-ph])

Wave localization does not affect the breakdown of a Schr\"odinger-type amplifier driven by the square of a Gaussian field. (arXiv:0911.3744v1

21.11.2009 03:29    arxiv.org
We study the divergence of the solution to a Schr\"odinger-type amplifierdriven by the square of a Gaussian noise in presence of a random potential. Wefollow the same approach as Mounaix, Collet, and Lebowitz (MCL) in terms of adistributional formulation of
World    Mathematics    Articles
Wave localization does not affect the breakdown of a Schr\"odinger-type amplifier driven by the square of a Gaussian field. (arXiv:0911.3744v1

Existence and uniqueness of the stationary measure in the continuous Abelian sandpile. (arXiv:0911.3782v1 [math.PR])

21.11.2009 03:29    arxiv.org
Let \Lambda be a finite subset of Z^d. We study the following sandpile modelon \Lambda. The height at any given vertex x of \Lambda is a positive realnumber, and additions are uniformly distributed on some interval [a,b], whichis a subset
World    Mathematics    Articles

Symmetries and geometrically implied nonlinearities in mechanics and field theory. (arXiv:0911.3818v1 [math-ph])

21.11.2009 03:29    arxiv.org
Discussed is relationship between nonlinearity and symmetry of dynamicalmodels. The special stress is laid on essential, non-perturbative nonlinearity,when none linear background does exist. This is nonlinearity essentiallydifferent from ones given by nonlinear corrections imposed onto some linearbackground. In a sense
World    Mathematics    Articles

Desordre et phenomenes de localisation. (arXiv:0911.3824v1 [math.PR])

21.11.2009 03:28    arxiv.org
Cette these est consacree a l' etude de differents modeles aleatoires depolymeres. On s'interesse en particulier a l'influence du desordre sur lalocalisation des trajectoires pour les modeles d'accrochage et pour lespolymeres diriges en milieu aleatoire. En plus des modeles classiques
World    Mathematics    Articles
Desordre et phenomenes de localisation. (arXiv:0911.3824v1 [math.PR])

Recurrence relations and vector equilibrium problems arising from a model of non-intersecting squared Bessel paths. (arXiv:0911.3831v1 [math.CA])

21.11.2009 03:28    arxiv.org
In this paper we consider the model of $n$ non-intersecting squared Besselprocesses with parameter $\alpha$, in the confluent case where all particlesstart, at time $t=0$, at the same positive value $x=a$, remain positive, andend, at time $T=t$, at the position
World    Mathematics    Articles
Recurrence relations and vector equilibrium problems arising from a model of non-intersecting squared Bessel paths. (arXiv:0911.3831v1 [math.CA])

Ellipsoids of U(3) model. (arXiv:0911.3847v1 [math-ph])

21.11.2009 03:28    arxiv.org
The Cartan model of SO(3)/SO(2) matrices is applied to reduce of rotationaldegrees of freedom on coadjoint orbits of u^*(3) Poisson algebra. Theseven--dimensional Poisson algebra u_SO(3) obtained by SO(3) reduction ofu^*(3) algebra is found and canonical parametrization of u^*(3) orbits[p_1,p_2,p_3] is
World    Mathematics    Articles
Ellipsoids of U(3) model. (arXiv:0911.3847v1 [math-ph])

Noncommutative Root Space Witt, Ricci Flow, and Poisson Bracket Continual Lie Algebras. (arXiv:0911.3875v1 [math-ph])

21.11.2009 03:28    arxiv.org
We introduce new examples of mappings defining noncommutative root spacegeneralizations for the Witt, Ricci flow, and Poisson bracket continual Liealgebras.
World    Mathematics    Articles
Noncommutative Root Space Witt, Ricci Flow, and Poisson Bracket Continual Lie Algebras. (arXiv:0911.3875v1 [math-ph])

Limit process of stationary TASEP near the characteristic line. (arXiv:0907.0226v2 [math-ph] UPDATED)

21.11.2009 03:28    arxiv.org
The totally asymmetric simple exclusion process (TASEP) on Z with theBernoulli-rho measure as initial conditions, 0
World    Mathematics    Articles

Stochastic Stability: a Review and Some Perspectives. (arXiv:0911.1091v2 [math-ph] UPDATED)

21.11.2009 03:27    arxiv.org
A review of the stochastic stability property for the Gaussian spin glassmodels is presented and some perspectives discussed.
World    Mathematics    Articles
Stochastic Stability: a Review and Some Perspectives. (arXiv:0911.1091v2 [math-ph] UPDATED)

New observables in topological instantonic field theories. (arXiv:0911.2928v1 [hep-th] CROSS LISTED)

21.11.2009 03:27    arxiv.org
Instantonic theories are quantum field theories where all correlators aredetermined by integrals over the finite-dimensional space (space of generalizedinstantons). We consider novel geometrical observables in instantonictopological quantum mechanics that are strikingly different from standardevaluation observables. These observables allow jumps of
World    Mathematics    Articles
New observables in topological instantonic field theories. (arXiv:0911.2928v1 [hep-th] CROSS LISTED)

Relativistic diffusive transport. (arXiv:0911.3126v1 [hep-th] CROSS LISTED)

21.11.2009 03:27    arxiv.org
We discuss transport equations resulting from relativistic diffusions in theproper time. We show that a solution of the transport equation can be obtainedfrom the solution of the diffusion equation by means of an integration over theproper time. We study the
World    Mathematics    Articles

On the Relation between Rigging Inner Product and Master Constraint Direct Integral Decomposition. (arXiv:0911.3431v1 [gr-qc] CROSS LISTED)

21.11.2009 03:27    arxiv.org
Canonical quantisation of constrained systems with first class constraintsvia Dirac's operator constraint method proceeds by the thory of Rigged Hilbertspaces, sometimes also called Refined Algebraic Quantisation (RAQ). This methodcan work when the constraints form a Lie algebra. When the constraints
World    Mathematics    Articles
On the Relation between Rigging Inner Product and Master Constraint Direct Integral Decomposition. (arXiv:0911.3431v1 [gr-qc] CROSS LISTED)

The Fine Structure of SU(2) Intertwiners from U(N) Representations. (arXiv:0911.3553v1 [gr-qc] CROSS LISTED)

21.11.2009 03:27    arxiv.org
In this work we study the Hilbert space space of N-valent SU(2) intertwinerswith fixed total spin, which can be identified, at the classical level, with aspace of convex polyhedra with N face and fixed total boundary area. We showthat this
World    Mathematics    Articles
The Fine Structure of SU(2) Intertwiners from U(N) Representations. (arXiv:0911.3553v1 [gr-qc] CROSS LISTED)

On p-Adic Sector of Adelic String. (arXiv:0911.3625v1 [hep-th] CROSS LISTED)

21.11.2009 03:27    arxiv.org
We consider construction of Lagrangians which are candidates for p-adicsector of an adelic open scalar string. Such Lagrangians have their origin inLagrangian for a single p-adic string and contain the Riemann zeta functionwith the d'Alembertian in its argument. In particular,
World    Mathematics    Articles
On p-Adic Sector of Adelic String. (arXiv:0911.3625v1 [hep-th] CROSS LISTED)

1