ROMANIAN ACADEMY
MATHEMATICAL REPORTS
VOL. 20(70) • No. 1 • 2018
CONTENTS
Muhammad ASLAM and Rehan AHMED
On word structure of the Hecke group
H
(λ
6
) over real quadratic fields
Mihai NICOLAE
On tangent groups of 2-step nilpotent pre-Lie groups
Usman ALI, Anam RIAZ and Misbah ARSHAD
On the centralizer of generators in 3-braid group
Waqas MAHMOOD
Cohomologically complete intersections with vanishing of Betti numbers
Mohammad ASHRAF, Mohd Arif RAZA and Sajad Ahmad PARY
Commutators having idempotent values with automorphisms in semi-prime rings
Bijan Kumar PATEL, Nurettin IRMAK and Prasanta Kumar RAY
Incomplete balancing and Lucas-balancing numbers
Zhang WENPENG and Hu JIAYUAN
The number of solutions of the diagonal cubic congruence equation mod
p
B. LAHMI, E. AZROUL and K. El HAITI
Nonlinear degenerated elliptic problems with dual data and nonstandard growth
Marjan SHEBANI ABDOLYOUSEF and Huanyin CHEN
Rings in which every zero divisor is the sum or difference of a nilpotent element and an idempotent