Results 21 to 30 of about 181,583 (167)

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

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

Composition of entire function and analytic functions in the unit ball with a vanished gradient

open access: yesМатематичні Студії
The composition $H(z)=f(\Phi(z))$ is studied, where $f$ is an entire function of a single complex variable and $\Phi$ is an analytic function in the $n$-dimensional unit ball with a vanished gradient. We found conditions by the function $\Phi$ providing
A. I. Bandura, T. M. Salo, O. B. Skaskiv
doaj   +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

An Accurate Approximation to the Distribution of a Linear Combination of Non-Central Chi-Square Random Variables

open access: yesRevstat Statistical Journal, 2013
This paper provides an accessible methodology for approximating the distribution of a general linear combination of non-central chi-square random variables. Attention is focused on the main application of the results, namely the distribution of positive
Hyung-Tae Ha
doaj   +1 more source

Long-Term Predictors of Social and Leisure Activity 10 Years after Stroke. [PDF]

open access: yesPLoS ONE, 2016
BACKGROUND:Restrictions in social and leisure activity can have negative consequences for the health and well-being of stroke survivors. To support the growing number of people who are ageing with stroke, knowledge is needed about factors that influence ...
Anna Norlander   +6 more
doaj   +1 more source

GEOMETRI FASADE BANGUNAN FRATERAN BUNDA HATI KUDUS DAN SEKOLAH COR JESU KOTA MALANG

open access: yesNature: National Academic Journal of Architecture, 2021
Abstrak_ Frateran Bunda Hati Kudus dan komplek Sekolah Cor Jesu yang berada di Kota Malang merupakan bangunan peninggalan masa Hindia Belanda. Lokasi kedua bangunan tersebut berada di koridor Jalan Jaksa Agung Suprapto (Kawasan Tjelaket) yang merupakan ...
Fadlina Rachmatillah   +1 more
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

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