Results 21 to 30 of about 1,222,593 (185)

Approximation of a Function and its Derivatives by Entire Functions of Several Variables [PDF]

open access: yesCanadian Mathematical Bulletin, 1988
AbstractThe paper gives a good approximation of a Ck function on Rn and its derivatives by the restriction of an entire function on Cn and its derivatives respectively.
Frih, El Mostapha, Gauthier, Paul M.
openaire   +1 more source

Quantum Groups, Coherent States, Squeezing and Lattice Quantum Mechanics [PDF]

open access: yes, 1993
By resorting to the Fock--Bargmann representation, we incorporate the quantum Weyl--Heisenberg ($q$-WH) algebra into the theory of entire analytic functions. The main tool is the realization of the $q$--WH algebra in terms of finite difference operators.
Celeghini   +4 more
core   +3 more sources

On a space of entire functions rapidly decreasing on Rn and its Fourier transform

open access: yesConcrete Operators, 2015
A space of entire functions of several complex variables rapidly decreasing on Rn and such that their growth along iRn is majorized with the help of a family of weight functions is considered in this paper.
Musin Il’dar Kh.
doaj   +1 more source

On the geometric means of entire functions of several complex variables [PDF]

open access: yesTransactions of the American Mathematical Society, 1970
Let f(z, z.,) be an entire function of the n (? 2) complex variables Z1 ... . Zn, holomorphic for Izt I rt, t= 1 ... , n. We have considered the case of only two complex variables for simplicity. Recently many authors have defined the arithmetic means of the function lf(zl, z2)I and have investigated their properties.
openaire   +3 more sources

On the Growth Order and Growth Type of Entire Functions of Several Complex Matrices

open access: yesJournal of Function Spaces, 2020
In this paper, we establish an explicit relation between the growth of the maximum modulus and the Taylor coefficients of entire functions in several complex matrix variables (FSCMVs) in hyperspherical regions.
M. Abul-Ez   +3 more
doaj   +1 more source

Laser Based Mid-Infrared Spectroscopic Imaging – Exploring a Novel Method for Application in Cancer Diagnosis [PDF]

open access: yes, 2011
A number of biomedical studies have shown that mid-infrared spectroscopic images can provide both morphological and biochemical information that can be used for the diagnosis of cancer.
McCrow, Andrew, McCrow, Andrew
core   +1 more source

On the growth of gap power series of homogeneous polynomials

open access: yesResearches in Mathematics
Let $f$ be an entire functions $f\colon \mathbb{C}^{p}\to\mathbb{C}$, represented by power series of the form $$f(z)=\sum\limits_{k=0}^{+\infty} P_k(z), z\in\mathbb{C}^p$$ where $P_0(z)\equiv a_{0}\in\mathbb{C}$, $P_k(z)=\sum\limits_{\|n\|=\lambda_k ...
A.I. Bandura   +2 more
doaj   +1 more source

Wiman’s type inequalities without exceptional sets for random entire functions of several variables [PDF]

open access: yesМатематичні Студії, 2012
In the paper we {consider entire} functions $ fcolonmathbb{C}^pomathbb{C}, pgeq 2, $ defined by power series$ f(z)=f(z_1,ldots,z_p)=sum_{|n|=0}^{+infty}a_n z^n, %pgeq2, $ $z^n=z_1^{n_1}cdotldotscdot z_p^{n_p},$$n=(n_1,ldots,n_p).$ For $r=(r_1,ldots,r_p ...
A. O. Kuryliak, O. B. Skaskiv
doaj  

Entire functions of several variables of bounded index

open access: yes, 2015
This monograph is devoted to the theory of entire functions of several variables. A definition of bounded index was supposed by B. Lepson. We generalised his definition for several variables and obtained criteria of L-index boundedness in direction. In particular we obtained obtain analogues of one-dimensional criterion of boundedness L-index in terms ...
Bandura, Andriy, Skaskiv, Oleh
openaire   +2 more sources

Topological Landau-Ginzburg theory with a rational potential and the dispersionless KP hierarchy [PDF]

open access: yes, 1995
Based on the dispersionless KP (dKP) theory, we give a comprehensive study of the topological Landau-Ginzburg (LG) theory characterized by a rational potential.
A. Losev   +28 more
core   +2 more sources

Home - About - Disclaimer - Privacy