Results 31 to 40 of about 1,222,593 (185)

Fourier coefficients and growth of harmonic functions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1987
We consider Harmonic Functions, H of several variables. We obtain necessary and sufficient conditions on its Fourier coefficients so that H is an entire harmonic (that is, has no finite singularities) function; the radius of harmonicity in terms of its ...
A. fryant, H. Shankar
doaj   +1 more source

Random Sampling of Entire Functions of Exponential Type in Several Variables

open access: yesIsrael Journal of Mathematics, 2007
22 pages Revised the section on covering numbers and clarified some estimates.
Gröchenig, Karlheinz, Bass, Richard
openaire   +3 more sources

Entire solutions for several complex partial differential-difference equations of Fermat type in ℂ2

open access: yesOpen Mathematics, 2021
By utilizing the Nevanlinna theory of meromorphic functions in several complex variables, we mainly investigate the existence and the forms of entire solutions for the partial differential-difference equation of Fermat type α∂f(z1,z2)∂z1+β∂f(z1,z2)∂z2m+f(
Gui Xian Min   +3 more
doaj   +1 more source

Mean-periodic functions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1980
We show that any mean-periodic function f can be represented in terms of exponential-polynomial solutions of the same convolution equation f satisfies, i.e., u∗f=0(μ∈E′(ℝn)). This extends to n-variables the work of L.
Carlos A. Berenstein, B. A. Taylor
doaj   +1 more source

Clocks Ticking in the Dark: A Review of Biological Rhythms in Subterranean African Mole-Rats

open access: yesFrontiers in Ecology and Evolution, 2022
Biological rhythms are rhythmic fluctuations of biological functions that occur in almost all organisms and on several time scales. These rhythms are generated endogenously and entail the coordination of physiological and behavioural processes to ...
Maria K. Oosthuizen   +3 more
doaj   +1 more source

Stochastic macromodeling of nonlinear systems via polynomial chaos expansion and transfer function trajectories [PDF]

open access: yes, 2014
A novel approach is presented to perform stochastic variability analysis of nonlinear systems. The versatility of the method makes it suitable for the analysis of complex nonlinear electronic systems. The proposed technique is a variation-aware extension
De Jonghe, Dimitri   +5 more
core   +2 more sources

Foam: Multi-Dimensional General Purpose Monte Carlo Generator With Self-Adapting Simplical Grid [PDF]

open access: yes, 1999
A new general purpose Monte Carlo event generator with self-adapting grid consisting of simplices is described. In the process of initialization, the simplex-shaped cells divide into daughter subcells in such a way that: (a) cell density is biggest in ...
Jadach, S.
core   +2 more sources

Polynomiality criterion for entire functions of several complex variables

open access: yesMathematical Notes, 1999
The “radial” polynomiality criterion for entire functions of several complex variables is proved.
Dovbuş, P.V., Dovbush, P.V.
openaire   +3 more sources

On dynamical systems approaches and methods in $f(R)$ cosmology

open access: yes, 2016
We discuss dynamical systems approaches and methods applied to flat Robertson-Walker models in $f(R)$-gravity. We argue that a complete description of the solution space of a model requires a global state space analysis that motivates globally covering ...
Alho, Artur   +2 more
core   +1 more source

Generalized Order and Best Approximation of Entire Function in 𝐿𝑝-Norm

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2010
The aim of this paper is the characterization of the generalized growth of entire functions of several complex variables by means of the best polynomial approximation and interpolation on a compact 𝐾 with respect to the set Ω𝑟={𝑧∈𝐂𝑛;exp𝑉𝐾(𝑧)≤𝑟}, where 𝑉𝐾=
Mohammed Harfaoui
doaj   +1 more source

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