20 citations · 66 across the 15 of their papers we have counts for
19 papers
The impact of the limit -Durrmeyer operator on continuous functions
Övgü Gürel Yılmaz, Sofiya Ostrovska, Mehmet Turan
The limit -Durrmeyer operator, was introduced and its approximation properties were investigated by V. Gupta in 2008 during a study of -analogues for the Bern…
Complementability of isometric copies of in transportation cost spaces
Sofiya Ostrovska, Mikhail I. Ostrovskii
This work aims to establish new results pertaining to the structure of transportation cost spaces. Due to the fact that those spaces were studied and applied in various contexts, t…
Dvoretzky-type theorem for locally finite subsets of a Hilbert space
Florin Catrina, Sofiya Ostrovska, Mikhail I. Ostrovskii
The main result of the paper: Given any , every locally finite subset of admits a -bilipschitz embedding into an arbitrary infinite-dimensi…
Isometric structure of transportation cost spaces on finite metric spaces
Sofiya Ostrovska, Mikhail I. Ostrovskii
The paper is devoted to isometric Banach-space-theoretical structure of transportation cost (TC) spaces on finite metric spaces. The TC spaces are also known as Arens-Eells, Lipsch…
On relations between transportation cost spaces and
Sofiya Ostrovska, Mikhail I. Ostrovskii
The present paper deals with some structural properties of transportation cost spaces, also known as Arens-Eells spaces, Lipschitz-free spaces and Wasserstein spaces. The main resu…
On the q-moment determinacy of probability distributions
Sofiya Ostrovska, Mehmet Turan
Given every absolutely continuous distribution can be described in two different ways: in terms of a probability density function and also in terms of a -density. Corre…
Power Lindley distribution and software metrics
Mohammed Khalleefah, Sofiya Ostrovska, Mehmet Turan
The Lindley distribution and its numerous generalizations are widely used in statistical and engineering practice. Recently, a power transformation of Lindley distribution, called…
Generalized transportation cost spaces
Sofiya Ostrovska, Mikhail Ostrovskii
The paper is devoted to the geometry of transportation cost spaces and their generalizations introduced by Melleray, Petrov, and Vershik (2008). Transportation cost spaces are also…
Uncorrelatedness sets of discrete uniform distributions via Vandermonde-type determinants
Mehmet Turan, Sofiya Ostrovska, Ahmet Yaşar Özban
Given random variables and having finite moments of all orders, their uncorrelatedness set is defined as the set of all pairs for which and $…
Discrete Stieltjes classes for log-Heine type distributions
Sofiya Ostrovska, Mehmet Turan
The Stieltjes classes play a significant role in the moment problem since they permit to expose an infinite family of probability distributions all having equal moments of all orde…
On Lin's condition for products of random variables with joint singular distribution
Alexander Il'inskii, Sofiya Ostrovska
Lin's condition is used to establish the moment determinacy/indeterminacy of absolutely continuous probability distributions. Recently, a number of papers related to Lin's conditio…
q-Stieltjes classes for some families of q-distributions
Sofiya Ostrovska, Mehmet Turan
The Stieltjes classes play a significant role in the moment problem allowing to exhibit explicitly an infinite family of probability densities with the same sequence of moments. In…
On embeddings of locally finite metric spaces into
Sofiya Ostrovska, Mikhail I. Ostrovskii
It is known that if finite subsets of a locally finite metric space admit -bilipschitz embeddings into , then for every , the space adm…
The distance between two limit -Bernstein operators
Sofiya Ostrovska, Mehmet Turan
For let denote the limit -Bernstein operator. In this paper, the distance between and for distinct and in the operator norm on is…
On Lin's condition for products of random variables
Alexander Il'inskii, Sofiya Ostrovska
The paper presents an elaboration of some results on Lin's conditions. A new proof of the fact that if densities of independent random variables and satisfy Lin's condi…
Induced scattering limits on fast radio bursts from stellar coronae
Yuri Lyubarsky, Sofiya Ostrovska
The origin of fast radio bursts remains a puzzle. Suggestions have been made that they are produced within the Earth atmosphere, in stellar coronae, in other galaxies or at cosmolo…
Nonexistence of embeddings with uniformly bounded distortions of Laakso graphs into diamond graphs
Sofiya Ostrovska, Mikhail I. Ostrovskii
Diamond graphs and Laakso graphs are important examples in the theory of metric embeddings. Many results for these families of graphs are similar to each other. In this connection,…
Distortion of embeddings of binary trees into diamond graphs
Siu Lam Leung, Sarah Nelson, Sofiya Ostrovska +1
Diamond graphs and binary trees are important examples in the theory of metric embeddings and also in the theory of metric characterizations of Banach spaces. Some results for thes…
Distortion in the finite determination result for embeddings of locally finite metric spaces into Banach spaces
Sofiya Ostrovska, Mikhail I. Ostrovskii
Given a Banach space and a real number , we write: (1) if, for any locally finite metric space , all finite subsets of which admit bilipschitz embeddings…