On periodic solutions of certain second order ordinary differential equations with periodic coefficients I. Bihari OriginalPaper 29 September 2013 Pages: 11 - 16
Some remarks and problems on the colouring of infinite graphs and the theorem of Kuratowski Jan Mycielski OriginalPaper 29 September 2013 Pages: 125 - 129
Maximum-Minimum Sätze und verallgemeinerte Faktoren von Graphen T. Gallai OriginalPaper 29 September 2013 Pages: 131 - 173
Sur une généralisation du théorème de Poulain et Hermite pour les zéros réels des polynômes réels N. Obrechkoff OriginalPaper 29 September 2013 Pages: 175 - 184
On generalizations of an inequality due to Pólya and Szegő E. Makai BriefCommunication 29 September 2013 Pages: 189 - 191
Some interpolatory properties of Hermite polynomials K. K. MathurA. Sharma OriginalPaper 29 September 2013 Pages: 193 - 207
Über die absolute Konvergenz lakunaerer trigonometrischer Reihen P. Szüsz OriginalPaper 29 September 2013 Pages: 215 - 220
An extremal problem in the theory of interpolation P. ErdősP. Turán OriginalPaper 29 September 2013 Pages: 221 - 234
Problems and results on the theory of interpolation. II P. Erdős OriginalPaper 29 September 2013 Pages: 235 - 244
On a problem of Baer and a problem of Whitehead in abelian groups J. Rotman OriginalPaper 29 September 2013 Pages: 245 - 254
On the strength of connectedness of a random graph P. ErdősA. Rényi OriginalPaper 29 September 2013 Pages: 261 - 267