Endomorphismen von ebenen Viergeweben (Beitrag zu einem Problem von J. Aczél) Václav Havel Research Papers Pages: 287 - 290
On the regularity of the locally integrable solutions of the functional equations\(\sum\limits_{i = 1}^k {a_i (x,t){\text{ }}f(x + \varphi _i (t)) = b(x,t)}\) Halina Światak Research Papers Pages: 291 - 296
Non-injective collineations on some sets in Desarguesian projective planes and extension of non-commutative valuations F. Radó Research Papers Pages: 307 - 321
A note on the convergence of solutions of a system of differential equations Ioan Muntean Research Papers Pages: 329 - 331
Discrete maximum principle for finite-difference operators Philippe G. Ciarlet Research Papers Pages: 338 - 352
Ein algorithmisches Kriterium für die Lösbarkeit eines algebraischen Gleichungssystems B. Buchberger Research Papers Pages: 374 - 383
A proof of the prime number summation formula without assuming the Riemann hypothesis I. C. Chakravartty Research Papers Pages: 384 - 394
On a system of functional equations in information theory B. Forte Short Communications Pages: 396 - 396
Bounds for the second eigenvalue of a positive operator K. P. Hadeler Short Communications Pages: 397 - 397
Funktionalgleichungen in reellen Vektorräumen und verallgemeinerte Cauchy-Riemann-sche Differentialgleichungen, speziell die Weylsche Gleichung des Neutrinos Wolfgang Eichhorn BriefCommunication Pages: 397 - 399
Some remarks on a difference-functional equation M. Kucharzewski Short Communications Pages: 399 - 400
Ein allgemeiner Vierscheitelsatz für ebene Jordankurven. II Otto Haupt Short Communications Pages: 400 - 400
