نتایج جستجو برای: singleton g frame operator

تعداد نتایج: 632339  

2015
N.Chandra Sekhar V.Purandhar Reddy

A Novel Degraded Video Enhancement N.Chandra Sekhar, V.Purandhar Reddy PG Student SVCE, Tirupati, India. Associate Professor, SVCE, Tirupati ,India. _________________________________________________________________________ ABSTRACT: We show an illustration based way to deal with general upgrade of degraded video frames. The technique depends on building a lexicon with non-debased parts of the V...

Journal: :Frontiers in Astronomy and Space Sciences 2023

In this short note we show how the Generalised Uncertainty Principle (GUP) and Extended (EUP), two of most common generalised uncertainty relations proposed in quantum gravity literature, can be derived within context canonical theory, without need for modified commutation relations. A GUP-type relation naturally emerges when standard position operator is replaced by an appropriate Positive Ope...

2007
Aditya Mavlankar David Chen Sameh Zakhary Markus Flierl Bernd Girod

The Laplacian pyramid (LP) provides a frame expansion. Thus, there exist infinitely many synthesis operators which achieve perfect reconstruction in the absence of quantization. However, if the subbands are quantized in the open-loop mode then the dual frame synthesis operator, which is the pseudo-inverse of the analysis operator, minimizes the mean squared error (MSE) in the reconstruction. No...

2017
Giuseppina Turco Karim Shoul Rachid Ridouane

We investigate the durational properties of Moroccan Arabic identical consonant sequences contrasting singleton (S) and geminate (G) dental fricatives, in six combinations of fourlevel length contrasts across word boundaries (#) (one timing slot for #S, two for #G and S#S, three for S#G and G#S, and four for G#G). The aim is to determine the nature of the mapping between discrete phonological t...

Journal: :journal of linear and topological algebra (jlta) 0
m rashidi-kouchi young researchers and elite club kahnooj branch, islamic azad university, kerman, iran.

in this paper, we investigate duality of modular g-riesz bases and g-riesz basesin hilbert c*-modules. first we give some characterization of g-riesz bases in hilbert c*-modules, by using properties of operator theory. next, we characterize the duals of a giveng-riesz basis in hilbert c*-module. in addition, we obtain sucient and necessary conditionfor a dual of a g-riesz basis to be again a g...

Journal: :Journal of Approximation Theory 2009
Heinz H. Bauschke Xianfu Wang Jane Ye Xiaoming Yuan

In 1960, Klee showed that a subset of a Euclidean space must be a singleton provided that each point in the space has a unique farthest point in the set. This classical result has received much attention; in fact, the Hilbert space version is a famous open problem. In this paper, we consider Klee sets from a new perspective. Rather than measuring distance induced by a norm, we focus on the case...

Journal: :CoRR 2013
Ken-ichi Sugiyama

We will construct an MDS(= the most distance separable) code C which admits a decomposition C = ⊕iCi such that every factor is still MDS. An effective way of decoding will be also discussed.

Journal: :Journal of Approximation Theory 2017
Vilmos Totik

and f(x) sin⟨x, b⟩ ∈ L(R) for all b ∈ B, (2) imply f ∈ L(R) for any measurable function f on R (here ⟨x, b⟩ denotes the inner product of x and b). He showed (for p ≥ 1) that if (i) A = αZ and B = βZ, or (ii) A = {a} and B = {b} are singletons, then (1) and (2) imply f ∈ L(R) if and only if αβ is not an integer multiple of π in case (i) and ⟨a, b⟩ is not an integer multiple of π in case of (ii)....

Journal: :Journal of Approximation Theory 2008
Ilya A. Krishtal Kasso A. Okoudjou

We use a generalization of Wiener’s 1/f theorem to prove that for a Gabor frame with the generator in the Wiener amalgam space W (L∞, ` )(R), the corresponding frame operator is invertible on this space. Therefore, for such a Gabor frame, the generator of the canonical dual belongs also to W (L∞, ` )(R).

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