Parametric rigidity of the Hopf bifurcation up to analytic conjugacy Waldo Arriagada OriginalPaper 21 June 2021 Pages: 1 - 17
The algebraic and geometric classification of nilpotent right alternative algebras Nurlan IsmailovIvan KaygorodovManat Mustafa OriginalPaper 14 June 2021 Pages: 18 - 30
Sumsets of Wythoff sequences, Fibonacci representation, and beyond Jeffrey Shallit OriginalPaper 01 July 2021 Pages: 37 - 46
Existence of an uncountable tower of Borel subgroups between the Prüfer group and the s-characterized group Pratulananda DasKumardipta Bose OriginalPaper 30 June 2021 Pages: 47 - 55
The inverse Kakeya problem Sergio CabelloOtfried CheongMichael Gene Dobbins OriginalPaper 25 June 2021 Pages: 70 - 75
r-Almost Newton–Ricci solitons on Legendrian submanifolds of Sasakian space forms Uday Chand DeMohammad Danish SiddiqiSudhakar K. Chaubey OriginalPaper 28 June 2021 Pages: 76 - 88
Arithmetic properties of polynomial solutions of the Diophantine equation \(P(x)x^{n+1}+Q(x)(x+1)^{n+1}=1\) Karl DilcherMaciej Ulas OriginalPaper Open access 29 April 2021 Pages: 89 - 118
The sum of reciprocals of least common multiples Jin-Hui FangJie Ma OriginalPaper 29 June 2021 Pages: 119 - 124
On the intersection of k-Lucas sequences and some binary sequences Salah Eddine RihaneAlain Togbé OriginalPaper 12 June 2021 Pages: 125 - 145
Existence of solutions for nonlocal elliptic systems involving p(x)-Laplace operator S. FirouziG. A. Afrouzi OriginalPaper 12 July 2021 Pages: 146 - 158
