CONTENTS                               Vol. 28 (2019) No. 2

ANDREI BOZÂNTAN and VASILE BERINDE
A comparative study of the PL homotopy and BFGS methods for some nonsmooth optimization problems pp. 97 – 104
ERDAL GÜL and MEHMET ALBAYRAK
Abel extensions of some classical Tauberian theorems pp. 105 – 112
ESRA GÜLLE and UĞUR ULUSU
Wijsman quasi-invariant convergence pp. 113 – 120
ANDREAS HOLZINGER, MARKUS PLASS, KATHARINA HOLZINGER, GLORIA CERASELA CRIŞAN, CAMELIA-M. PINTEA and VASILE PALADE
A glass-box interactive machine learning approach for solving NP-hard problems with the human-in-the-loop pp. 121 – 134
ADEWALE OLUSOLA KAYODE, OLALERU JOHNSON, OLAOLUWA HALLOWED and AKEWE HUDSON
Fixed point theorems on a -generalized quasi-metric spaces pp. 135 – 142
FATIH NURAY and UĞUR ULUSU
Lacunary invariant statistical convergence of double sequences of sets pp. 143 – 150
K. PATTABIRAMAN
Distance based topological descriptors for two classes of graphs pp. 151 – 162
K. R. PRASAD and MD. KHUDDUSH
Existence of countably many symmetric positive solutions for system of even order time scale boundary value problems in Banach spaces pp.163 – 182
COSMIN SABO, ANDREI HORVAT- MARC and PETRICĂ C. POP
Comments on ”A two-stage supply chain problem with fixed costs: An ant colony optimization approach” by Hong et al. International Journal of Production Economics (2018)  pp. 183 – 189
T. M. M. SOW
A modified Krasnosellkii-Mann algorithms for computing fixed points of multivalued quasi-nonexpansive mappings in Banach spaces pp. 191 – 198
IOANA TAŞCU
On the existence of antiderivatives of some real functions pp. 199 – 202
AHMET TEKCAN
Sums and spectral norms of almost balancing numbers pp. 203 – 214
MUSTAPHA FATEH YAROU
Reduction approach to second order perturbed state-dependent sweeping process pp. 215 – 221
SORINEL DUMITRESCU
Note on the paper ”An improvement of Batir’s asymptotic formula and some estimates related to the gamma function” pp. 222 – 222