Results 121 to 130 of about 4,589,015 (245)

θ-type Calderón-Zygmund Operators and Commutators in Variable Exponents Herz space

open access: yesOpen Mathematics, 2018
The aim of this paper is to deal with the boundedness of the θ-type Calderón-Zygmund operators and their commutators on Herz spaces with two variable exponents p(⋅), q(⋅).
Yang Yanqi, Tao Shuangping
doaj   +1 more source

Weighted BMO spaces associated to operators

open access: yes, 2012
In this version, the results on Hardy spaces were ...
Bui, The Anh, Duong, Xuan Thinh
openaire   +2 more sources

Operator-valued dyadic BMO spaces

open access: yes, 2008
We consider BMO spaces of operator-valued functions, among them the space of operator-valued functions $B$ which define a bounded paraproduct on $L^2(H)$. We obtain several equivalent formulations of $\| _B\|$ in terms of the norm of the "sweep" function of $B$ or of averages of the norms of martingales transforms of $B$ in related spaces. Furthermore,
Blasco, Oscar, Pott, Sandra
openaire   +2 more sources

BMO and Teichmüller space [PDF]

open access: yesAnnales Academiae Scientiarum Fennicae Series A I Mathematica, 1989
openaire   +2 more sources

A limiting case in partial regularity for quasiconvex functionals

open access: yesMathematics in Engineering
Local minimizers of nonhomogeneous quasiconvex variational integrals with standard $ p $-growth of the type $ w\mapsto \int \left[F(Dw)-f\cdot w\right]{\,{{\rm{d}}}x} $ feature almost everywhere $ \mbox{BMO} $-regular gradient provided that ...
Mirco Piccinini
doaj   +1 more source

Duality, BMO and Hankel operators on Bernstein spaces

open access: yesJournal of Functional Analysis
In this paper we deal with the problem of describing the dual space $(B^1_κ)^*$ of the Bernstein space $B^1_κ$, that is the space of entire functions of exponential type at most $κ>0$ whose restriction to the real line is Lebesgue integrable. We provide several characterisations, showing that such dual space can be described as a quotient of the ...
Bellavita, Carlo, Peloso, Marco M.
openaire   +3 more sources

On representation of solutions to the heat equation

open access: yesComptes Rendus. Mathématique
We propose a simple method to obtain semigroup representation of solutions to the heat equation using a local $L^2$ condition with prescribed growth and a boundedness condition within tempered distributions.
Auscher, Pascal, Hou, Hedong
doaj   +1 more source

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