2020/97/1-2
The collapsibility of CAT(0) square $2$-complexes
Ioana-Claudia Lazăr
The isomorphism problem of unitary subgroups of modular group algebras
Zsolt Balogh and Victor Bovdi
$\mathcal{N}(p,q,s)$-type spaces in the unit ball of $\mathbb{C}^n$. III. Various characterizations
Bingyang Hu and Songxiao Li
Torsion growth over cubic fields of rational elliptic curves with complex multiplication
Enrique González-Jiménez
Perfect numerical semigroups with embedding dimension three
María Angeles Moreno-Frías and José Carlos Rosales
The critical point equation on Kenmotsu and almost Kenmotsu manifolds
Dhriti Sundar Patra, Amalendu Ghosh and Arindam Bhattacharyya
Products of $k$-Fibonacci numbers which are rep-digits
Adel Alahmadi, Alaa Altassan, Florian Luca and Hatoon Shoaib
Riccati technique and oscillation constant for modified Euler type half-linear equations
Petr Hasil, Jaroslav Jaroš and Michal Veselý
Einstein—Randers metrics on compact simple Lie groups
Xiaosheng Li, Huibin Chen and Zhiqi Chen
New congruences on multiple harmonic sums and Bernoulli numbers
Liuquan Wang
Monotonicity, convexity and inequalities related to complete $(p,q,r)$-elliptic integrals and generalized trigonometric functions
Li Yin, Xiu-Li Lin and Feng Qi
The flatness of a class of ternary cyclotomic polynomials
Bin Zhang
Lie-central derivations, Lie-centroids and Lie-stem Leibniz algebras
Guy Roger Biyogmam, José Manuel Casas and Natália Pacheco Rego
Tangent prolongation of $\mathcal{C}^r$-differentiable loops
Ágota Figula and Péter T. Nagy
On the $c$-nilpotent multiplier of a pair of Lie algebras
Hesam Safa, Homayoon Arabyani and Morteza Norouzi