Results 21 to 30 of about 100,158 (234)
OPERATOR METHOD IN THE SCALAR WAVE DIFFRACTION BY AXIALLY-SYMMETRIC DISCONTINUITIES IN THE SCREEN
Radio Physics and Radio Astronomy, 2018 Purpose: The scalar wave diffraction by the annular slot in an infinitely thin screen is considered in case of Dirichlet and Neumann boundary conditions. Diffraction problem by a flat ring is also considered as a dual one.
M. E. Kaliberda +2 more
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Domain wall generation by fermion self-interaction and light particles [PDF]
, 2003 A possible explanation for the appearance of light fermions and Higgs bosons on the four-dimensional domain wall is proposed. The mechanism of light particle trapping is accounted for by a strong self-interaction of five-dimensional pre-quarks. We obtain
+94 more
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Curvature in Noncommutative Geometry
, 2020 Our understanding of the notion of curvature in a noncommutative setting has progressed substantially in the past ten years. This new episode in noncommutative geometry started when a Gauss-Bonnet theorem was proved by Connes and Tretkoff for a curved ...
A Buium +32 more
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Bounds for OPE coefficients on the Regge trajectory
Journal of High Energy Physics, 2017 We consider the Regge limit of the CFT correlation functions JJOO $$ \left\langle \mathcal{JJOO}\right\rangle $$ and T T O O $$ \left\langle TT\mathcal{O}\mathcal{O}\right\rangle $$ , where J $$ \mathcal{J} $$ is a vector current, T is the stress tensor ...
Miguel S. Costa +2 more
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Grand Unification in the Spectral Pati-Salam Model [PDF]
, 2015 We analyze the running at one-loop of the gauge couplings in the spectral Pati-Salam model that was derived in the framework of noncommutative geometry.
Chamseddine, Ali H. +2 more
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ON REFLEXIVITY OF SCALAR-TYPE SPECTRAL OPERATORS
Demonstratio Mathematica, 1999 \(X\) is said to be a locally convex \(C(K)\)-module if the bilinear mapping \(C(K)\times X\to X:(a, x)\to ax\) satisfies the following conditions: (i) 1. \(x= x\) for all \(x\) in \(X\), (ii) \((a,b)x= a.(bx)\) \((a\in C(K),b\in C(K),x\in X)\), (iii) the bilinear mapping is separately continuous. Here \(K\) is a compact Hausdorff space.
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, 2011 In this work we study the spectral zeta function associated with the Laplace operator acting on scalar functions defined on a warped product of manifolds of the type $I\times_{f} N$ where $I$ is an interval of the real line and $N$ is a compact, $d ...
A. Flachi +28 more
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Heat Determinant on Manifolds [PDF]
, 2014 We introduce and study new invariants associated with Laplace type elliptic partial differential operators on manifolds. These invariants are constructed by using the off-diagonal heat kernel; they are not pure spectral invariants, that is, they depend ...
Avramidi, Ivan G., Buckman, Benjamin J.
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Boolean algebras of projections and resolutions of the identity of scalar-type spectral operators [PDF]
Proceedings of the Edinburgh Mathematical Society, 1997 Let Μ be a Bade complete (or σ-complete) Boolean algebra of projections in a Banach space X. This paper is concerned with the following questions: When is Μ equal to the resolution of the identity (or the strong operator closure of the resolution of the identity) of some scalar-type spectral operator T (with σ(T) ⊆ ℝ) in X?
De Pagter, B., Ricker, W. J.
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, 2010 In this paper, we provide an approach for the calculation of one-loop effective actions, vacuum energies, and spectral counting functions and discuss the application of this approach in some physical problems.
AO Barvinsky +50 more
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