Search Results - "Romanyuk, S. A."

Refine Results
  1. 1

    Taxonomic diversity of sputum microbiome in lung cancer patients and its relationship with chromosomal aberrations in blood lymphocytes by Druzhinin, V. G., Matskova, L. V., Demenkov, P. S., Baranova, E. D., Volobaev, V. P., Minina, V. I., Apalko, S. V., Churina, M. A., Romanyuk, S. A., Shcherbak, S. G., Ivanov, V. I., Larionov, A. V.

    Published in Scientific reports (15-06-2020)
    “…Here we report a pilot-sized study to compare the taxonomic composition of sputum microbiome in 17 newly-diagnosed lung cancer (LC) patients and 17 controls…”
    Get full text
    Journal Article
  2. 2

    Entropy Numbers and Widths for the Nikol’skii–Besov Classes of Functions of Many Variables in the Space L by Romanyuk, A. S.

    Published in Analysis mathematica (Budapest) (01-03-2019)
    “…We establish order estimates for the entropy numbers of the Nikol’skii–Besov classes B p , θ r of periodic functions of many variables in the metric of the…”
    Get full text
    Journal Article
  3. 3

    Approximation of the Classes of Periodic Functions of One and Many Variables from the Nikol’skii–Besov and Sobolev Spaces by Romanyuk, A. S., Yanchenko, S. Ya

    Published in Ukrainian mathematical journal (01-11-2022)
    “…We establish the exact-order estimates for the best orthogonal trigonometric approximations of the Nikol’skii–Besov classes B 1 , θ r ( T d ) , 1 ≤ θ ≤ ∞ , of…”
    Get full text
    Journal Article
  4. 4

    Kolmogorov Widths of the Nikol’skii–Besov Classes of Periodic Functions of Many Variables in the Space of Quasicontinuous Functions by Romanyuk, A. S., Yanchenko, S. Ya

    Published in Ukrainian mathematical journal (01-07-2022)
    “…We obtain order estimates for the M -dimensional Kolmogorov widths of the Nikol’skii–Besov classes of periodic functions of many variables with predominant…”
    Get full text
    Journal Article
  5. 5

    Estimates of Approximating Characteristics and the Properties of the Operators of Best Approximation for the Classes of Periodic Functions in the Space B1,1 by Romanyuk, A. S., Yanchenko, S. Ya

    Published in Ukrainian mathematical journal (2022)
    “…We obtain the exact-order estimates for the orthoprojection widths and similar approximating characteristics of the Sobolev classes W p , α r and…”
    Get full text
    Journal Article
  6. 6

    Estimation of Some Approximating Characteristics of the Classes of Periodic Functions of One and Many Variables by Romanyuk, A. S., Romanyuk, V. S.

    Published in Ukrainian mathematical journal (2020)
    “…We establish the exact-order estimates for some approximating characteristics of the classes W p , α r and B p , θ r of periodic functions of one and many…”
    Get full text
    Journal Article
  7. 7

    Kolmogorov Widths and Bilinear Approximations of the Classes of Periodic Functions of One and Many Variables by Romanyuk, A. S.

    Published in Ukrainian mathematical journal (01-07-2018)
    “…We obtain the exact order estimates for the Kolmogorov widths of the classes W p g of periodic functions of one variable generated by the integral operators…”
    Get full text
    Journal Article
  8. 8

    Trigonometric and Linear Widths for the Classes of Periodic Multivariate Functions by Romanyuk, A. S.

    Published in Ukrainian mathematical journal (01-10-2017)
    “…We establish the exact-order estimates for the trigonometric widths of Nikol’skii–Besov B ∞ , θ r and Sobolev W ∞ , α r classes of periodic multivariate…”
    Get full text
    Journal Article
  9. 9

    Approximating Characteristics of the Classes of Periodic Multivariate Functions in the Space B∞,1 by Romanyuk, A. S., Romanyuk, V. S.

    Published in Ukrainian mathematical journal (01-07-2019)
    “…We obtain the exact-order estimates of the Kolmogorov widths and entropy numbers for the classes W p , α r and B p , θ r in the norm of the space B ∞, 1 …”
    Get full text
    Journal Article
  10. 10

    Optimization of RNA storage in a biobank, as well as methods for manual and automated isolation of RNA from whole blood and leukocyte fraction by Romanyuk, S. A., Popov, O. S., Sushentseva, N. N., Apalko, S. V., Polkovnikova, I. A., Shcherbak, S. G.

    “…Aim. To optimize the technique for the isolation and storage of ribonucleic acid (RNA) from whole blood and leukocyte fraction. Materials and methods …”
    Get full text
    Journal Article
  11. 11

    Study of the Crack Resistance of Microarc Oxidation Coatings after Laser Doping with Zirconium Oxide by Lapitskaya, V. A., Kuznetsova, T. A., Chizhik, S. A., Komarov, A. I., Frolov, Yu. I., Romanyuk, A. S.

    Published in Technical physics (01-11-2019)
    “…In this paper we present the results of a study of crack resistance of a microarc oxidation coating (MAO) after laser doping with zirconium oxide. Crack…”
    Get full text
    Journal Article
  12. 12

    Entropy Numbers and Widths for the Classes Bp,θr of Periodic Functions of Many Variables by Romanyuk, A. S.

    Published in Ukrainian mathematical journal (01-03-2017)
    “…We establish the exact-order estimates for the entropy numbers of the Nikol’skii–Besov classes of periodic functions of two variables in the space L ∞ and use…”
    Get full text
    Journal Article
  13. 13
  14. 14

    Entropy Numbers and Widths for the Classes B p , θ r of Periodic Functions of Many Variables by Romanyuk, A S

    Published in Ukrainian mathematical journal (01-01-2017)
    “…We establish the exact-order estimates for the entropy numbers of the Nikol’skii–Besov classes of periodic functions of two variables in the space L∞ and use…”
    Get full text
    Journal Article
  15. 15

    Entropy numbers and widths for the classes [B.sup.r.sub.p,[theta]] of periodic functions of many variables by Romanyuk, A.S

    Published in Ukrainian mathematical journal (01-03-2017)
    “…We establish the exact-order estimates for the entropy numbers of the Nikol'skii-Besov classes of periodic functions of two variables in the space…”
    Get full text
    Journal Article
  16. 16

    Estimation of the Entropy Numbers and Kolmogorov Widths for the Nikol’skii–Besov Classes of Periodic Functions of Many Variables by Romanyuk, A. S.

    Published in Ukrainian mathematical journal (01-04-2016)
    “…We establish order estimates for the entropy numbers of the Nikol’skii–Besov classes B p , θ r of periodic functions of many variables in the space L q with…”
    Get full text
    Journal Article
  17. 17
  18. 18

    Best trigonometric and bilinear approximations of classes of functions of several variables by Romanyuk, A. S.

    Published in Mathematical Notes (01-09-2013)
    “…Order-sharp estimates of the best orthogonal trigonometric approximations of the Nikol’skii-Besov classes B p,θ r of periodic functions of several variables in…”
    Get full text
    Journal Article
  19. 19

    On the Problem of Linear Widths of the Classes Bp,θr of Periodic Functions of Many Variables by Romanyuk, A. S.

    Published in Ukrainian mathematical journal (2014)
    “…We establish order estimates for the linear widths of the classes B p , θ r of periodic functions of many variables in the space L q for some relationships…”
    Get full text
    Journal Article
  20. 20