CONTENTS           Vol. 37, No. 1, 2021

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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