Vol. 11 No. 2 (2019)

Scientific articles

• Analytic vector-functions in the unit ball having bounded $\mathbf{L}$-index in joint variables

  V.P. Baksa

  213-227

  • Article

• The nonlocal boundary value problem with perturbations of mixed boundary conditions for an elliptic equation with constant coefficients. I

  Ya.O. Baranetskij, P.I. Kalenyuk, M.I. Kopach, A.V. Solomko

  228-239

  • Article

• On comparison of the principles of equivalent utility and its applications

  M. Chudziak

  240-249

  • Article

• Leibniz algebras: a brief review of current results

  V.A. Chupordia, A.A. Pypka, N.N. Semko, V.S. Yashchuk

  250-257

  • Article

• Some distance based indices of graphs based on four new operations related to the lexicographic product

  N. Dehgardi, S.M. Sheikholeslami, M. Soroudi

  258-267

  • Article

• Properties of integrals which have the type of derivatives of volume potentials for one ultraparabolic arbitrary order equation

  V.S. Dron', S.D. Ivasyshen, I.P. Medyns'kyi

  268-280

  • Article

• Estimates of approximative characteristics of the classes $B^{\Omega}_{p,\theta}$ of periodic functions of several variables with given majorant of mixed moduli of continuity in the space $L_{q}$

  O.V. Fedunyk-Yaremchuk, S.B. Hembars'ka

  281-295

  • Article

• On inverse submonoids of the monoid of almost monotone injective co-finite partial selfmaps of positive integers

  O.V. Gutik, A.S. Savchuk

  296-310

  • Article

• Spectra of some algebras of entire functions of bounded type, generated by a sequence of polynomials

  S.I. Halushchak

  311-320

  • Article

• Approximation of the classes $W^{r}_{\beta,\infty}$ by three-harmonic Poisson integrals

  U.Z. Hrabova, I.V. Kal'chuk

  321-334

  • Article

• Algebras generated by special symmetric polynomials on $\ell_1$

  F. Jawad, H. Karpenko, A.V. Zagorodnyuk

  335-344

  • Article

• A new factor theorem for generalized absolute Riesz summability

  A. Karakaş

  345-349

  • Article

• On single-layer potentials for a class of pseudo-differential equations related to linear transformations of a symmetric $\alpha$-stable stochastic process

  Kh.V. Mamalyha, M.M. Osypchuk

  350-360

  • Article

• Filtering of multidimensional stationary sequences with missing observations

  O.Yu. Masyutka, M.P. Moklyachuk, M.I. Sidei

  361-378

  • Article

• Properties of solutions of a heterogeneous differential equation of the second order

  O.M. Mulyava, M.M. Sheremeta, Yu.S. Trukhan

  379-398

  • Article

• Inverse sum indeg coindex of graphs

  K. Pattabiraman

  399-406

  • Article

• On the sum of signless Laplacian spectra of graphs

  S. Pirzada, H.A. Ganie, A.M. Alghamdi

  407-417

  • Article

• Metric dimension of metric transform and wreath product

  B.S. Ponomarchuk

  418-421

  • Article

• Weights of the $\mathbb{F}_{q}$-forms of $2$-step splitting trivectors of rank $8$ over a finite field

  M.A. Rakdi, N. Midoune

  422-430

  • Article

• The derivative connecting problems for some classical polynomials

  A. Ramskyi, N. Samaruk, O. Poplavska

  431-441

  • Article

• A note on compact-like semitopological groups

  A. Ravsky

  442-452

  • Article

• On additivity of derivations

  G.S. Sandhu, D. Kumar

  453-462

  • Article

• The nonlocal boundary value problem for one-dimensional backward Kolmogorov equation and associated semigroup

  R.V. Shevchuk, I.Ya. Savka, Z.M. Nytrebych

  463-474

  • Article

• A new generalization of $\alpha$-type almost-$F$-contractions and $\alpha$-type $F$-Suzuki contractions in metric spaces and their fixed point theorems

  A. Taheri, A.P. Farajzadeh

  475-492

  • Article

• Point-evaluation functionals on algebras of symmetric functions on $(L_\infty)^2$

  T.V. Vasylyshyn

  493-501

  • Article