Kuczma, Marek Note on microperiodic functions. (English) Zbl 0726.26005 Rad. Mat. 5, No. 1, 127-140 (1989). Reviewer: J.Smítal (Bratislava) MSC: 26A30 22E30 PDF BibTeX XML Cite \textit{M. Kuczma}, Rad. Mat. 5, No. 1, 127--140 (1989; Zbl 0726.26005)
Pilipović, Stevan Some operations in \(\Sigma_{\alpha}'\), \(\alpha >1/2\). (English) Zbl 0705.46019 Rad. Mat. 5, No. 1, 53-62 (1989). MSC: 46F15 46F10 PDF BibTeX XML Cite \textit{S. Pilipović}, Rad. Mat. 5, No. 1, 53--62 (1989; Zbl 0705.46019)
Dubrovin, N. I. Chain rings. (Russian. English summary) Zbl 0705.16002 Rad. Mat. 5, No. 1, 97-106 (1989). Reviewer: A.I.Kashu MSC: 16D25 16K20 16H05 16P20 16D60 PDF BibTeX XML Cite \textit{N. I. Dubrovin}, Rad. Mat. 5, No. 1, 97--106 (1989; Zbl 0705.16002)
Burton, Andrew P.; Smith, Peter An approach to Friedrichs and Poincaré integral inequalities using convexity. (English) Zbl 0702.26014 Rad. Mat. 5, No. 1, 107-114 (1989). Reviewer: S.Cinquini MSC: 26D10 26D15 PDF BibTeX XML Cite \textit{A. P. Burton} and \textit{P. Smith}, Rad. Mat. 5, No. 1, 107--114 (1989; Zbl 0702.26014)
Christophoridou, Chryssi Geodätischer Fluß auf kompakten Riemannschen Mannigfaltigkeiten, die eine Metrik vom Anosov Typ tragen können. (Geodesic flow on compact Riemannian manifolds carrying a metric of Anosov type.). (German) Zbl 0694.53042 Rad. Mat. 5, No. 1, 29-40 (1989). Reviewer: W.Ballmann MSC: 53C22 37D40 53D25 PDF BibTeX XML Cite \textit{C. Christophoridou}, Rad. Mat. 5, No. 1, 29--40 (1989; Zbl 0694.53042)
Lavrent’ev, I. M.; Šćepanovic, R. To the question on weak semicontinuity of functionals. (Russian. English summary) Zbl 0689.47023 Rad. Mat. 5, No. 1, 63-70 (1989). Reviewer: M.Kucera MSC: 47H99 58C07 46G05 PDF BibTeX XML Cite \textit{I. M. Lavrent'ev} and \textit{R. Šćepanovic}, Rad. Mat. 5, No. 1, 63--70 (1989; Zbl 0689.47023)
Kostyrko, Pavel Generalized Jensen’s and Lobatchewski’s functional equations and their local forms. (English) Zbl 0685.39005 Rad. Mat. 5, No. 1, 5-13 (1989). Reviewer: N.Ghircoiaşiu MSC: 39B99 PDF BibTeX XML Cite \textit{P. Kostyrko}, Rad. Mat. 5, No. 1, 5--13 (1989; Zbl 0685.39005)
Lazarow, Eva; Wilczyński, Wladyslaw \(\mathcal I\)-approximate derivatives. (English) Zbl 0685.26004 Rad. Mat. 5, No. 1, 15-27 (1989). Reviewer: L.Mišík MSC: 26A24 28A05 26A03 PDF BibTeX XML Cite \textit{E. Lazarow} and \textit{W. Wilczyński}, Rad. Mat. 5, No. 1, 15--27 (1989; Zbl 0685.26004)
Marangunić, Ljubo On the nonexistence of a biplane (79,13,2) admitting a collineation of order 13. (English) Zbl 0684.05010 Rad. Mat. 5, No. 1, 89-96 (1989). Reviewer: K.Sinha MSC: 05B05 51E15 PDF BibTeX XML Cite \textit{L. Marangunić}, Rad. Mat. 5, No. 1, 89--96 (1989; Zbl 0684.05010)
Ashraf, Mohd.; Quadri, Murtaza A. On commutativity of associative rings with constraints involving a subset. (English) Zbl 0683.16025 Rad. Mat. 5, No. 1, 141-149 (1989). Reviewer: H.E.Bell MSC: 16U70 16Rxx PDF BibTeX XML Cite \textit{Mohd. Ashraf} and \textit{M. A. Quadri}, Rad. Mat. 5, No. 1, 141--149 (1989; Zbl 0683.16025)
Zakrzewska, Danuta Convex duality and Hamiltonian systems in the space of absolutely continuous functions. (English) Zbl 0681.49015 Rad. Mat. 5, No. 1, 71-87 (1989). MSC: 49N15 49L99 PDF BibTeX XML Cite \textit{D. Zakrzewska}, Rad. Mat. 5, No. 1, 71--87 (1989; Zbl 0681.49015)
Dobi, J. Inclusion relations between the Banach spaces of absolutely and strongly convergent Fourier series. (English) Zbl 0677.42003 Rad. Mat. 5, No. 1, 151-160 (1989). MSC: 42A16 42A20 PDF BibTeX XML Cite \textit{J. Dobi}, Rad. Mat. 5, No. 1, 151--160 (1989; Zbl 0677.42003)
Ladas, G.; Partheniadis, E. C.; Schinas, J. Oscillation and stability of second order differential equations with piecewise constant argument. (English) Zbl 0677.34059 Rad. Mat. 5, No. 1, 171-178 (1989). MSC: 34K99 34C10 PDF BibTeX XML Cite \textit{G. Ladas} et al., Rad. Mat. 5, No. 1, 171--178 (1989; Zbl 0677.34059)
Grace, S. R.; Lalli, B. S. Oscillation and asymptotic behavior of certain second order neutral differential equations. (English) Zbl 0677.34058 Rad. Mat. 5, No. 1, 121-126 (1989). MSC: 34K99 34C10 PDF BibTeX XML Cite \textit{S. R. Grace} and \textit{B. S. Lalli}, Rad. Mat. 5, No. 1, 121--126 (1989; Zbl 0677.34058)
Avgerinos, Evgenios P.; Papageorgiou, Nikolaos S. Viable solutions for evolution inclusions. (English) Zbl 0677.34054 Rad. Mat. 5, No. 1, 161-170 (1989). MSC: 34G20 47H20 PDF BibTeX XML Cite \textit{E. P. Avgerinos} and \textit{N. S. Papageorgiou}, Rad. Mat. 5, No. 1, 161--170 (1989; Zbl 0677.34054)
Dostanić, Milutin Properties of the system of eigenfunctions for a boundary value problem for a functional differential equation with a discontinuous coefficient. (English) Zbl 0677.34021 Rad. Mat. 5, No. 1, 41-51 (1989). MSC: 34L99 47B50 PDF BibTeX XML Cite \textit{M. Dostanić}, Rad. Mat. 5, No. 1, 41--51 (1989; Zbl 0677.34021)
Darsow, W. F.; Frank, M. J.; Kairies, H.-H. Errata: Functional equations for a function of van der Waerden type. (English) Zbl 0676.26005 Rad. Mat. 5, No. 1, 179-180 (1989). MSC: 26A27 39B12 PDF BibTeX XML Cite \textit{W. F. Darsow} et al., Rad. Mat. 5, No. 1, 179--180 (1989; Zbl 0676.26005)
Hicks, T. L. Some fixed point theorems. (English) Zbl 0675.54042 Rad. Mat. 5, No. 1, 115-119 (1989). MSC: 54H25 PDF BibTeX XML Cite \textit{T. L. Hicks}, Rad. Mat. 5, No. 1, 115--119 (1989; Zbl 0675.54042)
Bandieri, P.; Cavicchioli, A.; Grasselli, L. Errata: Heegaard diagrams, graphs and 3-manifold spines. (English) Zbl 0826.57008 Rad. Mat. 5, No. 1, 181-183 (1989). MSC: 57N10 57Q15 57M20 57Q40 PDF BibTeX XML Cite \textit{P. Bandieri} et al., Rad. Mat. 5, No. 1, 181--183 (1989; Zbl 0826.57008)