Volume 60, Number 4, December 2015

                                                                                                                                                                                                                                                   

 

  S T U D I A

 

                UNIVERSITATIS BABEŞ-BOLYAI

 

                               MATHEMATICA

 

 

Ulrich Albrecht, χ1-A-coseperable groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 493

 

Bo-Yan Xi and Feng Qi, Some new integral inequalities of Hermite-Hadamard

type for (log; (α;m))-convex functions on co-ordinates . . . . . . . . . . . . . . . . . . . . . 509

 

Silvestru Sever Dragomir and Ian Gomm, Some Hermite-Hadamard

type inequalities for functions whose exponentials are convex . . . . . . . . . . . . . . . 527

 

Virgil Pescar, On the univalence of an integral operator . . . . . . . . . . . . . . . . . . . . 535

 

Saurabh Porwal, Sanjay Kumar Ghai and Kaushal Kumar, Some new subclasses

of bi-univalent functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 543

 

Fuad Al Sarari and Latha Satyanarayana, A new class of (j; k)-symmetric harmonic

starlike functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .553

 

Sukhwinder Singh Billing, On close-to-convex functions satisfying

a differential inequality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . 561

 

Fatma Kanca and Irem Baglan, Generalized and numerical solution for a quasilinear

parabolic equation with nonlocal conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 567

 

Zoltan Gabos and Agnes Mester, Lines in the three-dimensional

Bolyai-Lobachevskian hyperbolic geometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 583

 

Masoud Aminizadeh and Mina Ghotbaldini, Multisymplectic connections

on supermanifolds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .597

 

Igor Milovanovic, Emina Milovanovic and Edin Glogic, On applications of

Andrica-Badea and Nagy inequalities in spectral graph theory . . .. . . . . . . . . . . . . 603

 

Flavius Patrulescu and Teodor Grosan, Conjugate free convection

in a vertical channel filled with nanouid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   611

 

Book reviews . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 623