Results 11 to 20 of about 16,027 (213)

On composition of four-symbol 𝛿-codes and Hadamard matrices [PDF]

open access: bronzeProceedings of the American Mathematical Society, 1989
It is shown that key instruments for composition of four-symbol δ \delta -codes are the Lagrange identity for polynomials, a certain type of quasisymmetric sequences (i.e., a set of normal or near normal sequences) and base sequences.
C. H. Yang
openalex   +3 more sources

Relative growth of Hadamard compositions of entire Dirichlet series

open access: diamondVisnyk Lvivskogo Universytetu Seriya Mekhaniko-Matematychna, 2023
Summary: Let \(F(s)=\sum\limits_{n=1}^{\infty}a_n\exp\{s\lambda_n\}\) and \(F_j(s)=\sum\limits_{n=1}^{\infty}a_{n,j}\exp\{s\lambda_n\}\) be entire Dirichlet series with exponents \( 0\le\lambda_n\uparrow+\infty\). The function \(F\) is called Hadamard composition of the genus \(m \geq 1\) of the functions \(F_j\) if \( a_n=P(a_{n,1},\dots ,a_{n,p ...
O. M. Mulyava   +2 more
openalex   +3 more sources

A Synthesis of the Theorems of Hadamard and Hurwitz on Composition of Singularities [PDF]

open access: greenProceedings of the National Academy of Sciences, 1931
The two well-known classical theorems on composition of singularities due to Hadamard' and Hurwitz2 one would expect to be interrelated in some way. In fact, Professor Hille has drawn my attention to this possibility in connection with my earlier paper on composition of singularities.3 The purpose of this paper is to prove the following theorem which ...
W. J. Trjitzinsky
openalex   +5 more sources

Belonging to convergence classes of Hadamard compositions of Gelfond-Leont'ev derivatives for analytic functions

open access: greenKarpatsʹkì Matematičnì Publìkacìï, 2013
The conditions are found, under which the belonging to Valiron convergence class of entire functions $f$ and $g$ implies the belonging to this class of Gelfond-Leont'ev derivative of Hadamard composition of functions $f$ and $g$ and of Hadamard ...
O. M. Mulyava, M. M. Sheremeta
doaj   +2 more sources

HADAMARD COMPOSITION OF SERIES IN SYSTEMS OF FUNCTIONS

open access: hybridBukovinian Mathematical Journal, 2023
For regularly converging in ${\Bbb C}$ series $A_j(z)=\sum\limits_{n=1}^{\infty}a_{n,j}f(\lambda_nz)$, $1\le j\le p$, where $f$ is an entire transcendental function, the asymptotic behavior of a Hadamard composition $A(z)=\break=(A_1*...*A_p)_m(z)=\sum\limits_{n=1}^{\infty} \left(\sum\limits_{k_1+\dots+k_p=m}c_{k_1...k_p}a_{n,1}^{k_1}\cdot...\cdot a_{n,
M. M. Sheremeta
openalex   +3 more sources

On some compositions of Hadamard type in classes of analytic functions [PDF]

open access: diamondBulletin of the American Mathematical Society, 1959
(1) ft(s) £ — «• n-i n leads to an element of the same class. A little weaker conjecture than I would be the following: CONJECTURE I I . h(z) has a nonvanishing derivative in \z\ < 1 . The Conjecture I would mean that under this composition rule 5 forms a semi-group containing the unit element z/(l— z).
Charles Loewner, E. Netanyahu
openalex   +4 more sources

Compositions of Hadamard-type fractional integration operators and the semigroup property

open access: closedJournal of Mathematical Analysis and Applications, 2002
The well-known Liouville fractional integration on \(\mathbb{R}^1\) is invariant with respect to translations. The corresponding form of fractional integration on \(\mathbb{R}^1_+\) invariant with respect to dilations (obtained from the Liouville form by obvious logarithmic change of variables) is known as the Hadamard fractional integration, having ...
P. L. Butzer   +2 more
openalex   +3 more sources

On Dirichlet series like to compositions of Hadamard

open access: diamondMatematychni Studii, 2019
O. M. Mulyava, M. M. Sheremeta
openalex   +2 more sources

On Hadamard compositions of entire Dirichlet series and Dirichlet series absolutely converging in half-plane

open access: diamondVisnyk Lvivskogo Universytetu. Seriya Mekhaniko-Matematychna, 2019
O. M. Mulyava, M. M. Sheremeta
openalex   +3 more sources

Home - About - Disclaimer - Privacy