Results 281 to 290 of about 348,140 (318)

Quantum phase-space distributions with compact support

Physica E: Low-Dimensional Systems and Nanostructures, 2010
John R Barker
exaly   +2 more sources

Compact support kernels based time-frequency distributions: Performance evaluation

IEEE International Conference on Acoustics, Speech, and Signal Processing, 2011
Adel Belouchrani, Boualem Boashash
exaly   +2 more sources

Kotel'nikov-Shannon formula for Fourier transforms of distributions with compact supports

Ukrainian Mathematical Journal, 1995
Let \(F\) be a distribution with support \((-a,a)\) and order of singularity \(p.\) For the Fourier transform \(\widehat F\) of \(F\), an analogue of the Kotel'nikov formula is established.
openaire   +2 more sources

A criterion for the compactness of the support of a generalized function (distribution) in terms of the Fourier-Laplace transform

Mathematical Notes, 2014
Using the Fragmen-Lindelof principle, we prove that, in the Paley-Wiener-Schwartz theorem, the condition imposed on the function can be replaced by two conditions whose validity is easier to verify in a number of cases.
V. Z. Meshkov, I. P. Polovinkin
openaire   +1 more source

Cauchy and Poisson integral representations for ultradistributions of compact support and distributional boundary values

Proceedings of the Royal Society of Edinburgh: Section A Mathematics, 1981
SynopsisUltradistributions of compact support are represented as the boundary values of Cauchy and Poisson integrals corresponding to tubular radial domains Tc' =ℝn + iC', C'⊂⊂C, where C is an open, connected, convex cone. The Cauchy integral of is shown to be an analytic function in TC' which satisfies a certain boundedness condition.
openaire   +2 more sources

Fourier-Laplace transforms of distributions with compact support and their imaginary zeros

2014
A nonzero polynomial is said to be positive if its coefficients are nonnegative. Motzkin and Straus [5] observe that if a real polynomial P(Z) has no positive zeros, then there is a positive polynomial Q(Z) such that P(Z).Q(Z) is positive. We interpret this analytically and prove analogous results for some real distributions with compact supports ...
openaire   +2 more sources

Functions of Exponential Type and Bounded on the Real Space ( Fourier Transforms of Distribution of Compact Support )

1992
In this chapter we consider entire functions of at most normal type with respect to the order 1 (i.e. functions of exponential type) that are bounded for real values of the variables. The importance of this class of functions is lies in the fact that it contains the Fourier transforms of functions of compact support and belonging to L1 (ℝn).
openaire   +1 more source

Enhancement of a compact support time-frequency distribution derived from a polynomial kernel using image processing

2022 7th International Conference on Image and Signal Processing and their Applications (ISPA), 2022
Mohammed Amin Adoul, Mansour Abed, Adel Belouchrani   +2 more
openaire   +1 more source

Iteration of the Laplace transform over generalized functions and a Post-Widder inversion formula over distributions of compact support

Integral Transforms and Special Functions, 2023
B. J. González, E. R. Negrín
openaire   +1 more source

Classification of intramuscular EMG signals using a separable compact support kernel-based timefrequency distribution and deep transfer learning

2023 International Symposium on Signals, Circuits and Systems (ISSCS), 2023
Sarra Ouamri, Mansour Abed, Abdelaziz Ould Ali   +2 more
openaire   +1 more source