Results 31 to 40 of about 3,204,490 (302)

Clustering by analytic functions

open access: yesInformation Sciences, 2012
Data clustering is a combinatorial optimization problem. This article shows that clustering is also an optimization problem for an analytic function. The mean squared error, or in this case, the squared error can expressed as an analytic function. With an analytic function we benefit from the existence of standard optimization methods: the gradient of ...
Malinen Mikko, Fränti Pasi
openaire   +1 more source

A Subclass of Analytic Functions Associated with Hypergeometric Functions [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2019
In the present paper, we have established sufficient conditions for Gaus-sian hypergeometric functions to be in certain subclass of analytic univalent functions in the unit disc $mathcal{U}$.
Santosh B. Joshi   +2 more
doaj   +1 more source

Gamma Generalization Operators Involving Analytic Functions

open access: yesMathematics, 2021
In the present paper, we give an operator with the help of a generalization of Boas–Buck type polynomials by means of Gamma function. We have approximation properties and moments.
Qing-Bo Cai   +2 more
doaj   +1 more source

On certain analytic univalent functions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2001
We consider the class of analytic functions B(α) to investigate some properties for this class. The angular estimates of functions in the class B(α) are obtained.
B. A. Frasin, M. Darus
doaj   +1 more source

Convex combination of analytic functions

open access: yesOpen Mathematics, 2017
Radii of convexity, starlikeness, lemniscate starlikeness and close-to-convexity are determined for the convex combination of the identity map and a normalized convex function F given by f(z) = α z+(1−α)F(z).
Cho Nak Eun   +2 more
doaj   +1 more source

A class of analytic functions based on convolution [PDF]

open access: yesSurveys in Mathematics and its Applications, 2010
We introduce a class TSpg(α) of analytic functions with negative coefficients defined by convolution with a fixed analytic function g(z)=z+Σn=2∞bnzn, bn>0, |z|
H. Silverman   +3 more
doaj  

An analytic continuation of random analytic functions (in Ukrainian) [PDF]

open access: yesМатематичні Студії, 2011
Let $(eta_n(omega))$ be a sequence of independent randomvariables such that $eta_n(omega)$ takes the values $-1$ and$1$ with the probabilities $p_n$ and $1-p_n$, respectively. Put$q_n=min{p_n,1-p_n}$.
P. V. Filevych
doaj  

CT-Right Equivalence Of Analytic Functions

open access: yesDemonstratio Mathematica, 2015
Let ƒ, g : (ℝn, 0) --+ (ℝ, 0) be analytic functions. We will show that if ▽ƒ(0) = 0 and g ƒ∈ (ƒ)r+2 then I and g are Cr-right equivalent, where (ƒ) denote ideal generated by ƒ and r ∈ ℕ.
Migus Piotr
doaj   +1 more source

Note on bases in algebras of analytic functions on Banach spaces

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2019
Let $\{P_n\}_{n=0}^\infty$ be a sequenceof continuous algebraically independent  homogeneous polynomials on a complex Banach space $X.$ We consider the following question: Under which conditions polynomials $\{P_1^{k_1}\cdots P_n^{k_n}\}$ form a Schauder
I.V. Chernega, A.V. Zagorodnyuk
doaj   +1 more source

Analytic functions over valued fields

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1990
Let K be a non-archimedean, non-trivially (rank 1) valued complete field. B, B0 denote the closed and open unit ball of K respectively. Necessary and sufficient conditions for analytic functions defined on B, B0 with values in K to be injective ...
R. Bhaskaran, V. Karunakaran
doaj   +1 more source

Home - About - Disclaimer - Privacy