Characterization of a two-weighted vector-valued inequality for fractional maximal operators.
Characterization of associate spaces of generalized weighted weak-Lorentz spaces and embeddings
We characterize associate spaces of generalized weighted weak-Lorentz spaces and use this characterization to study embeddings between these spaces.
Characterization of Bessel sequences.
Let H be a separable Hilbert space, L(H) be the algebra of all bounded linear operators of H and Bess(H) be the set of all Bessel sequences of H. Fixed an orthonormal basis E = {ek}k∈N of H, a bijection αE: Bess(H) → L(H) can be defined. The aim of this paper is to characterize α-1E (A) for different classes of operators A ⊆ L(H). In particular, we characterize the Bessel sequences associated to injective operators, compact operators and Schatten p-classes.
Characterization of Biothogonal Cosine Wavelets.
Characterization of Convolution Operators on Spaces of C-Functions Admitting a Continuous Linear Right Inverse.
Characterization of Fourier Transforms of Vector Valued Functions and Measures
Characterization of generators for multiresolution analyses with composite dilations.
Characterization of in terms of generalized Littlewood-Paley g-functions
Characterization of low pass filters in a multiresolution analysis
We characterize the low pass filters associated with scaling functions of a multiresolution analysis in a general context, where instead of the dyadic dilation one considers the dilation given by a fixed linear invertible map A: ℝⁿ → ℝⁿ such that A(ℤⁿ) ⊂ ℤⁿ and all (complex) eigenvalues of A have modulus greater than 1. This characterization involves the notion of filter multiplier of such a multiresolution analysis. Moreover, the paper contains a characterization of the measurable functions which...
Characterization of L...(R...) Using Gabor Frames.
Characterization of measures in the group C*-algebra of a locally compact group.
Characterization of moment multisequences by a variation of positive definiteness.
Characterization of rearrangement invariant spaces with fixed points for the Hardy-Littlewood maximal operator.
Characterization of the Besov-Lipschitz and Triebel-Lizorkin Spaces the Case q < 1.
Characterization of the boundedness for a family of commutators on
Characterization of the convolution operators on quasianalytic classes of Beurling type that admit a continuous linear right inverse
Extending previous work by Meise and Vogt, we characterize those convolution operators, defined on the space of (ω)-quasianalytic functions of Beurling type of one variable, which admit a continuous linear right inverse. Also, we characterize those (ω)-ultradifferential operators which admit a continuous linear right inverse on for each compact interval [a,b] and we show that this property is in fact weaker than the existence of a continuous linear right inverse on .
Characterization of the strict convexity of the Besicovitch-Musielak-Orlicz space of almost periodic functions
We introduce the new class of Besicovitch-Musielak-Orlicz almost periodic functions and consider its strict convexity with respect to the Luxemburg norm.
Characterizations of Gabor Systems via the Fourier transform.
We give characterizations of orthogonal families, tight frames and orthonormal bases of Gabor systems. The conditions we propose are stated in terms of equations for the Fourier transforms of the Gabor system's generating functions.
Characterizations of Localized BMO() via Commutators of Localized Riesz Transforms and Fractional Integrals Associated to Schr“odinger Operators and Fractional Integrals Associated to Schr“odinger Operators.
Characterizations of periodic function spaces of Besov-Sobolev type via approximation processes and relations to the strong summability of Fourier series