CONTENTS                  Vol. 37, No. 1, 2021

MONTHER R. ALFURAIDAN, SELVARAJ BALACHANDRAN and TOMAS VETRIK
General multiplicative Zagreb indices of unicyclic graphs . . . . . . . . . . . 1 – 11
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SULIMAN AL-HOMIDAN
Semi–definite programming for the nearest circulant semi–definite matrix problem . . . . . . . . . . .     13 – 22
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CAMELIA BARBATU and DANIEL BREAZ
Univalence criteria for a general integral operator . . . . . . . . . . .      23 – 33
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DAVID BENKO, DAN COROIAN and LIA PETRACOVICI
A fresh look at Cauchy’s Convergence Criterion: Some variations and generalizations. . . . . . . . . . .     35 – 43
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ROVANA BORUGA (TOMA) and MIHAIL MEGAN
Datko type characterizations for non uniform polynomial dichotomy . . . . . . . . . . . 45 – 51
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DUMITRU BUSNEAG, DANA PICIU and ANCA-MARIA DINA
Ideals in residuated lattices . . . . . . . . . . . 53 –  63
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K. CALDERON, M. A. KHAMSI and J. MARTINEZ-MORENO
Perturbed approximations of fixed points of nonexpansive mappings in CATp(0) spaces. . . . . . . . . . . 65 – 79
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NURSEL CETIN
A new complex generalized Bernstein-Schurer operator. . . . . . . . . . . 81 – 89
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R. DURAN DIAZ, L. HERNANDEZ ENCINAS and J. MUNOZ MASQUE
Quadratic maps in two variables on arbitrary fields. . . . . . . . . . . 91 – 100
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CRISTIAN DINU, DANIELA DANCIULESCU and ALEXANDRU TUGUI
Some inequalities related to Ky Fan inequality on time scales . . . . . . . . . . . 101-108
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RABIA SAVAS and RICHARD F. PATTERSON
Gauge strongly summability of measurable functions. . . . . . . . . . . 109 – 117
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MIHAI TALMACIU
On Hyper-Chordal graphs. . . . . . . . . . . 119 – 126
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CLAUDIA VALLS
Universal centers and composition conditions on the complex plane. . . . . . . . . . . 127 – 133
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YI-BIN XIAO and MIRCEA SOFONEA
Tykhonov triples, well-posedness and convergence results. . . . . . . . . . . 135 – 143
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