Ramanujan's Most Singular Modulus
Real Analysis in Reverse
Real numbers as infinite decimals and irrationality of $\sqrt{2}$
Recurrence Formulas for Fibonacci Sums
Recursion and Combinatorial Mathematics in Chandashaastra
Recursive Synthesis and the Foundations of Mathematics
Relacoes Matematicas: uma ferramenta no combate ao desinteresse dos alunos
Remarks on Quantum Physics and Noncommutative Geometry
Remarks to Glazek's results on n-ary groups
Remarques sur l'expression de la généralité en mathématiques
Remembering Erich Lehmann
Representation of One as the Sum of Unit Fractions
Representations of finite groups
Representative dynamics
Review of "Knots" by Alexei Sossinsky, Harvard University Press, 2002, ISBN 0-674-00944-4
Review of The Chinese Roots of Linear Algebra by Roger Hart
Review of Wüst's 'Mathematik für Physiker und Mathematiker'
Revisiting a Number-Theoretic Puzzle: The Census-Taker Problem
Reworking on affine exterior algebra of Grassmann, Peano and his school
Ribet's modular construction of unramified p-extensions of Q(μ_p)