Results 101 to 110 of about 70,449 (343)
Weighted estimates for multilinear Fourier multipliers
, 2013 We prove a H\"{o}rmander type multiplier theorem for multilinear Fourier multipiers with multiple weights.
Li, Kangwei, Sun, Wenchang
core +1 more source
Mathematische Nachrichten, EarlyView.Abstract This paper is devoted to the approximation of two‐ and three‐dimensional Dirac operators HV∼δΣ$H_{\widetilde{V} \delta _\Sigma }$ with combinations of electrostatic and Lorentz scalar δ$\delta$‐shell interactions in the norm resolvent sense. Relying on results from Behrndt, Holzmann, and Stelzer‐Landauer [Math. Nachr.
Jussi Behrndt +2 more
wiley +1 more source
Observables of Angular Momentum as Observables on the Fedosov Quantized Sphere
, 2005 In this paper we construct the commutators of the Fedosov * (a generalization of the Moyal star product) on the phase space of S2. It is shown that this product obeys the standard angular momentum commutation relations in ordinary nonrelativistic quantum
Sparling, George, Tillman, Philip
core +1 more source
IEEE Transactions on Circuits and Systems Part 1: Regular Papers, 2018 Radix- $2^{k}$ delay feed-back and radix-K delay commutator are the most well-known pipeline architecture for FFT design. This paper proposes a novel radix-22 multiple delay commutator architecture utilizing the advantages of the radix-22 algorithm ...
Ngoc Le Ba, T. T. Kim
semanticscholar +1 more source
A general formula for the Magnus expansion in terms of iterated integrals of right-nested commutators [PDF]
, 2017 We present a general expression for any term of the Magnus series as an iterated integral of a linear combination of independent right-nested commutators with given coefficients.
Ana Arnal, F. Casas, Cristina Chiralt
semanticscholar +1 more source
A revisit on the compactness of commutators [PDF]
Canadian Journal of Mathematics - Journal Canadien de Mathematiques, 2017 A new characterization of $\text {CMO}(\mathbb R^n)$ is established replying upon local mean oscillations. Some characterizations of iterated compact commutators on weighted Lebesgue spaces are given, which are new even in the unweighted setting for ...
Weichao Guo, Huo-xiong Wu, Dongyong Yang
semanticscholar +1 more source
Vector bundles on bielliptic surfaces: Ulrich bundles and degree of irrationality
Mathematische Nachrichten, EarlyView.Abstract This paper deals with two problems about vector bundles on bielliptic surfaces. The first is to give a classification of Ulrich bundles on such surfaces S$S$, which depends on the topological type of S$S$. In doing so, we study the weak Brill–Noether property for moduli spaces of sheaves with isotropic Mukai vector. Adapting an idea of Moretti
Edoardo Mason
wiley +1 more source
, 1997 As one would anticipate from the realization of the q-commutators by difference operators, the states of maximum localization are smeared delta functions depending on q.Comment: 10 pages, tex ...
Finkelstein, Robert J.
core +1 more source
Interaction of Dirac δ$$ \delta $$‐Waves in the Inviscid Levine and Sleeman Chemotaxis Model
Mathematical Methods in the Applied Sciences, EarlyView.ABSTRACT This article investigates interactions of δ$$ \delta $$‐shock waves in the inviscid Levine and Sleeman chemotaxis model ut−λ(uv)x=0$$ {u}_t-\lambda {(uv)}_x=0 $$, vt−ux=0$$ {v}_t-{u}_x=0 $$. The analysis employs a distributional product and a solution concept that extends the classical solution concept.
Adelino Paiva
wiley +1 more source
Canonical Commutation Relation Derived from Witt Algebra
MathematicsFrom an arbitrary definition of operators inspired by oscillators of Virasoro, an algebra is derived. It fits the structure of Virasoro algebra with null central charge or Witt algebra. The resulting formalism has yielded commutators with a dependence on
Huber Nieto-Chaupis
doaj +1 more source