Results 31 to 40 of about 81,230 (240)

Singlet vs Nonsinglet Perturbative Renormalization factors of Staggered Fermion Bilinears

open access: yesEPJ Web of Conferences, 2018
In this paper we present the perturbative computation of the difference between the renormalization factors of flavor singlet (Σfψ¯fΓψf, f : flavor index) and nonsinglet (ψ¯f1Γψf2,f1≠f2) bilinear quark operators (where Γ = 𝟙, γ5, γ µ, γ5 γ µ, γ5 σµv on ...
Panagopoulos Haralambos   +1 more
doaj   +1 more source

Definición de semiproductos escalares útiles en análisis de datos

open access: yesRevista de Matemática: Teoría y Aplicaciones, 2009
We develop the theory necessary for Data Analysis with inner semiproducts, extending tha classical concepts of inner products usually employed. For this, we use the basic algebraic definitions of non degenerated bilinear forms and develop all the ...
Javier Trejos Zelaya
doaj   +1 more source

Sobolev norm estimates for a class of bilinear multipliers

open access: yes, 2013
We consider bilinear multipliers that appeared as a distinguished particular case in the classification of two-dimensional bilinear Hilbert transforms by Demeter and Thiele [9]. In this note we investigate their boundedness on Sobolev spaces. Furthermore,
Bernicot, Frédéric, Kovač, Vjekoslav
core   +2 more sources

Perturbative renormalization factors for bilinear and four-quark operators for Kogut-Susskind fermions on the lattice [PDF]

open access: yes, 1993
Renormalization factors for bilinear and four-quark operators with the Kogut-Susskind fermion action are perturbatively calculated to one-loop order in the general covariant gauge.
Ishizuka, N., Shizawa, Y.
core   +2 more sources

Scaling dimensions in QED3 from the ϵ-expansion

open access: yesJournal of High Energy Physics, 2017
We study the fixed point that controls the IR dynamics of QED in d = 4 − 2ϵ dimensions. We derive the scaling dimensions of four-fermion and bilinear operators beyond leading order in the ϵ-expansion.
Lorenzo Di Pietro, Emmanuel Stamou
doaj   +1 more source

Bilinear Fractal Interpolation and Box Dimension

open access: yes, 2014
In the context of general iterated function systems (IFSs), we introduce bilinear fractal interpolants as the fixed points of certain Read-Bajraktarevi\'{c} operators.
Barnsley, Michael F.   +1 more
core   +1 more source

Bilinear Fractional Integral Operators

open access: yes, 2020
We study the bilinear fractional integral considered by Kenig and Stein, where linear combinations of variables with matrix coefficients are involved. Under more general settings, we give a complete characterization of the corresponding parameters for which the bilinear fractional integral is bounded from $L^{p_1}(\mathbb R^{n_1}) \times L^{p_2 ...
Chen, Ting, Sun, Wenchang
openaire   +2 more sources

Norm Attaining Multilinear Forms on 𝐿1(𝝁)

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2008
Given an arbitrary measure 𝜇, this study shows that the set of norm attaining multilinear forms is not dense in the space of all continuous multilinear forms on 𝐿1(𝜇). However, we have the density if and only if 𝜇 is purely atomic. Furthermore, the study
Yousef Saleh
doaj   +1 more source

Boundedness of smooth bilinear square functions and applications to some bilinear pseudo-differential operators

open access: yes, 2010
This paper is devoted to the proof of boundedness of bilinear smooth square functions. Moreover, we deduce boundedness of some bilinear pseudo-differential operators associated with symbols belonging to a subclass of $BS^0_{0,0}$.Comment: 27 ...
Bernicot, Frederic, Shrivastava, Saurabh
core   +1 more source

On summability of bilinear operators [PDF]

open access: yesMathematische Nachrichten, 2003
AbstractWe study some properties of strongly and absolutely p‐summing bilinear operators. We show that Hilbert‐Schmidt bilinear mappings are both strongly and absolutely p‐summing, for every p ≥ 1. Giving an example of a strongly 1‐summing bilinear mapping which fails to be weakly compact, we answer a question posed in [6].
Carando, Daniel, Dimant, Verónica
openaire   +2 more sources

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