Additive selections of superadditive set-valued functions A. Smajdor Research Papers Pages: 121 - 128
Circles and spheres in pseudo-Riemannian geometry N. AbeY. NakanishiS. Yamaguchi Research Papers Pages: 134 - 145
On the chromatic number of rational five-space Kiran B. Chilakamarri Research Papers Pages: 146 - 148
Trivialization of fans in planar ternary rings with rational prime field Franz B. Kalhoff Research Papers Pages: 149 - 160
Doubly transitive permutation groups with abelian stabilizers Gy. KárolyiS. J. KovácsP. P. Pálfy Research Papers Pages: 161 - 166
Kopplungen auf einem quadratischen Zahlkörper und eine Basis seiner Normengruppe Detlef Gröger Research Papers Pages: 167 - 178
On the mean value property of finely harmonic and finely hyperharmonic functions B. Fuglede Research Papers Pages: 198 - 203
Mittelwertungleichungen für Lösungen gewisser Differenzengleichungen Lutz G. Lucht Research Papers Pages: 204 - 209
Supernumary polylogarithmic ladders and related functional equations L. LewinM. Abouzahra Research Papers Pages: 210 - 253
All 113 and 123-configurations are rational Bernd SturmfelsNeil White Research Papers Pages: 254 - 260
The Twenty-seventh International Symposium on Functional Equations, August 14–24, 1989, Bielsko-BiałKatowice—Kraków, Poland J. AczélF. Stehling Report of Meeting Pages: 264 - 329