Results 31 to 40 of about 108 (99)

Discrete quadratic splines

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 13, Issue 2, Page 343-348, 1990., 1990
In the present paper, we define a new class of discrete splines and study the existence, uniqueness, and convergence properties of discrete quadratic splines satisfying the Mean Averaging Condition.
Surendra Singh Rana
wiley   +1 more source

Fast evaluation of nonlinear functionals of tensor product wavelet expansions [PDF]

open access: yes, 2010
For a nonlinear functional f, and a function u from the span of a set of tensor product interpolets, it is shown how to compute the interpolant of f (u) from the span of this set of tensor product interpolets in linear complexity, assuming that the index
Christoph Schwab   +5 more
core   +1 more source

The generalized sampling theorem for transforms of not necessarily square integrable functions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 8, Issue 2, Page 355-358, 1985., 1985
It is known that the generalized sampling theorem is valid for certain finite limit integral transforms of square integrable functions. In this note, we will extend the validity of the theorem to include transforms of absolutely integrable functions associated with differentiable kernels.
A. J. Jerri
wiley   +1 more source

Quantum coherence of Gaussian states in curved spacetime

open access: yesResults in Physics, 2019
We study quantum coherence of two-mode Gaussian states in the background of an asymptotically flat black hole. We find that quantum coherence between mode A observed by an inertial observer Alice and mode B observed by an accelerated Bob who hovers near ...
Shu-Min Wu, Hao-Sheng Zeng, Tong-Hua Liu
doaj   +1 more source

Coupling efficiency of a partially coherent collimating laser from turbulent biological tissue to fiber

open access: yesResults in Physics, 2019
We propose a model of the fiber coupling efficiency for a partially coherent collimating laser beam propagating through turbulent biological tissue to fiber.
Qiyong Liang   +5 more
doaj   +1 more source

Enhanced double random phase encryption of quantum images

open access: yesResults in Physics, 2019
We improve the double random phase encryption (DRPE) algorithm to make the outcome of DRPE algorithm as uniformly mixed as possible via applying scrambling transform.
Shiping Du   +3 more
doaj   +1 more source

On bivariate fractal interpolation for countable data and associated nonlinear fractal operator

open access: yesDemonstratio Mathematica
Fractal interpolation has been conventionally treated as a method to construct a univariate continuous function interpolating a given finite data set with the distinguishing property that the graph of the interpolating function is the attractor of a ...
Pandey Kshitij Kumar   +2 more
doaj   +1 more source

A theoretical study on resistance of electrolytic solution: Measurement of electrolytic conductivity

open access: yesResults in Physics, 2019
We propose a theoretical approach to determine the conductivity of electrolytic solution using sine waveform voltage as a triggering signal. The approach is based on the acquisition of the complex impedance in two-electrode conductance cell by analyzing ...
Liyue Su, Xiaodong Liao, Zheng Huang
doaj   +1 more source

On the Convergence of (0,1,2) Interpolation [PDF]

open access: yes, 2005
2000 Mathematics Subject Classification: 41A05.For the Hermite interpolation polynomial, Hm(x) we prove for any function f of C^(2q) ([−1, 1]) and any s = 0, 1, 2, . . . , q , where q is a fixed integer that ..
Muneer, Y.
core  

Shapiro’s problem on polynomials with large partial sums of coefficients

open access: yesForum of Mathematics, Sigma
Given a polynomial $\sum _\nu a_\nu X^\nu $ of degree $
Marc Technau
doaj   +1 more source

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