Xue, Weimin On weakly left duo rings. (English) Zbl 0763.16001 Riv. Mat. Univ. Parma, IV. Ser. 15, 211-217 (1989). MSC: 16D25 16E50 16S34 16L30 PDF BibTeX XML Cite \textit{W. Xue}, Riv. Mat. Univ. Parma, IV. Ser. 15, 211--217 (1989; Zbl 0763.16001) OpenURL
Okuyama, Yasuo On contraction of Fourier series. IV. (English) Zbl 0785.42003 Riv. Mat. Univ. Parma, IV. Ser. 15, 199-210 (1989). MSC: 42A20 42A16 PDF BibTeX XML Cite \textit{Y. Okuyama}, Riv. Mat. Univ. Parma, IV. Ser. 15, 199--210 (1989; Zbl 0785.42003) OpenURL
Musso, Emilio Contact twistors and conformal geometry. (Italian. English summary) Zbl 0734.53030 Riv. Mat. Univ. Parma, IV. Ser. 15, 227-245 (1989). Reviewer: R.Iordanescu (Bucureşti) MSC: 53C15 53A30 PDF BibTeX XML Cite \textit{E. Musso}, Riv. Mat. Univ. Parma, IV. Ser. 15, 227--245 (1989; Zbl 0734.53030) OpenURL
Faour, N.; Yousef, S. Toeplitz operators associated with Bergman and Hardy spaces. (English) Zbl 0729.47024 Riv. Mat. Univ. Parma, IV. Ser. 15, 51-62 (1989). Reviewer: N.L.Vasilevskij (Odessa) MSC: 47B35 47B07 PDF BibTeX XML Cite \textit{N. Faour} and \textit{S. Yousef}, Riv. Mat. Univ. Parma, IV. Ser. 15, 51--62 (1989; Zbl 0729.47024) OpenURL
Scotti, A. A new conjecture on the zeros of the Riemann zeta-function. (Italian. English summary) Zbl 0727.11032 Riv. Mat. Univ. Parma, IV. Ser. 15, 99-104 (1989). Reviewer: A.Perelli (Genova) MSC: 11M26 35-XX 81S25 37-XX PDF BibTeX XML Cite \textit{A. Scotti}, Riv. Mat. Univ. Parma, IV. Ser. 15, 99--104 (1989; Zbl 0727.11032) OpenURL
de Cataldo, Mark Andrea Elliptic fibrations and holomorphic bundles. (Italian. English summary) Zbl 0725.14032 Riv. Mat. Univ. Parma, IV. Ser. 15, 265-269 (1989). Reviewer: A.Buium (Bucureşti) MSC: 14J27 14M20 32J10 14E99 32L05 PDF BibTeX XML Cite \textit{M. A. de Cataldo}, Riv. Mat. Univ. Parma, IV. Ser. 15, 265--269 (1989; Zbl 0725.14032) OpenURL
Castro, Regina; Hervella, Luis M.; García-Río, Eduardo Some examples of almost complex manifolds with Norden metric. (English) Zbl 0723.53021 Riv. Mat. Univ. Parma, IV. Ser. 15, 133-141 (1989). Reviewer: M.de León (Madrid) MSC: 53C15 53C50 PDF BibTeX XML Cite \textit{R. Castro} et al., Riv. Mat. Univ. Parma, IV. Ser. 15, 133--141 (1989; Zbl 0723.53021) OpenURL
Alzati, A.; Bertolini, M. On the rationality of a certain class of cubic complexes. (English) Zbl 0723.14037 Riv. Mat. Univ. Parma, IV. Ser. 15, 27-40 (1989). Reviewer: I.V.Dolgachev (Ann Arbor) MSC: 14M20 14E05 14J30 PDF BibTeX XML Cite \textit{A. Alzati} and \textit{M. Bertolini}, Riv. Mat. Univ. Parma, IV. Ser. 15, 27--40 (1989; Zbl 0723.14037) OpenURL
Zagaglia Salvi, N. A point-distinguishing edge-coloring problem. (English) Zbl 0723.05057 Riv. Mat. Univ. Parma, IV. Ser. 15, 143-148 (1989). Reviewer: M.Kubale (Gdańsk) MSC: 05C15 PDF BibTeX XML Cite \textit{N. Zagaglia Salvi}, Riv. Mat. Univ. Parma, IV. Ser. 15, 143--148 (1989; Zbl 0723.05057) OpenURL
Fedeli, Alessandro Two properties related to A-compactness. (English) Zbl 0722.54009 Riv. Mat. Univ. Parma, IV. Ser. 15, 89-98 (1989). Reviewer: R.Nakagawa (Ibaraki) MSC: 54B30 54D30 PDF BibTeX XML Cite \textit{A. Fedeli}, Riv. Mat. Univ. Parma, IV. Ser. 15, 89--98 (1989; Zbl 0722.54009) OpenURL
Bedocchi, Edmondo On the second minimum of a quadratic form and its applications. (Italian. English summary) Zbl 0719.11036 Riv. Mat. Univ. Parma, IV. Ser. 15, 175-190 (1989). Reviewer: P.Gruber (Wien) MSC: 11H50 11H55 PDF BibTeX XML Cite \textit{E. Bedocchi}, Riv. Mat. Univ. Parma, IV. Ser. 15, 175--190 (1989; Zbl 0719.11036) OpenURL
Vassallo, Salvatore An application of integral geometry in affine space. (Italian. English summary) Zbl 0718.53054 Riv. Mat. Univ. Parma, IV. Ser. 15, 159-164 (1989). Reviewer: M.Stoka (Torino) MSC: 53C65 PDF BibTeX XML Cite \textit{S. Vassallo}, Riv. Mat. Univ. Parma, IV. Ser. 15, 159--164 (1989; Zbl 0718.53054) OpenURL
Dragomir, Sever Silvestru On best approximation in the sense of Lumer and applications. (English) Zbl 0718.41037 Riv. Mat. Univ. Parma, IV. Ser. 15, 253-263 (1989). Reviewer: S.K.Rangarajan (Karaikudi) MSC: 41A50 PDF BibTeX XML Cite \textit{S. S. Dragomir}, Riv. Mat. Univ. Parma, IV. Ser. 15, 253--263 (1989; Zbl 0718.41037) OpenURL
Exton, Harold On a generalization of the Bessel-Clifford equation and an application in quantum mechanics. (English) Zbl 0718.34003 Riv. Mat. Univ. Parma, IV. Ser. 15, 41-46 (1989). Reviewer: N.D.Sengupta (Bombay) MSC: 34A05 34A25 81Q99 PDF BibTeX XML Cite \textit{H. Exton}, Riv. Mat. Univ. Parma, IV. Ser. 15, 41--46 (1989; Zbl 0718.34003) OpenURL
Koca, Kerim Pseudoholomorphe Logarithmusfunktionen. (Pseudo-holomorphic logarithm- functions). (German) Zbl 0718.30035 Riv. Mat. Univ. Parma, IV. Ser. 15, 1-6 (1989). Reviewer: G.Frank (Berlin) MSC: 30G20 PDF BibTeX XML Cite \textit{K. Koca}, Riv. Mat. Univ. Parma, IV. Ser. 15, 1--6 (1989; Zbl 0718.30035) OpenURL
Startek, Mariusz; Szynal, Dominik On a metric defined on the space of probability measures. (English) Zbl 0717.60012 Riv. Mat. Univ. Parma, IV. Ser. 15, 219-226 (1989). Reviewer: R.Tardiff MSC: 60B10 54E70 PDF BibTeX XML Cite \textit{M. Startek} and \textit{D. Szynal}, Riv. Mat. Univ. Parma, IV. Ser. 15, 219--226 (1989; Zbl 0717.60012) OpenURL
Monar, Dolores Curvature on manifolds with almost contact 3-structure. (English) Zbl 0716.53040 Riv. Mat. Univ. Parma, IV. Ser. 15, 63-68 (1989). Reviewer: D.Perrone MSC: 53C15 PDF BibTeX XML Cite \textit{D. Monar}, Riv. Mat. Univ. Parma, IV. Ser. 15, 63--68 (1989; Zbl 0716.53040) OpenURL
De Leon, Manuel Compact almost contact solvmanifolds admitting neither Sasakian nor cosymplectic structures. (English) Zbl 0716.53038 Riv. Mat. Univ. Parma, IV. Ser. 15, 105-110 (1989). Reviewer: D.Perrone MSC: 53C15 53C25 53C30 PDF BibTeX XML Cite \textit{M. De Leon}, Riv. Mat. Univ. Parma, IV. Ser. 15, 105--110 (1989; Zbl 0716.53038) OpenURL
Marcu, Dănuţ The chromatic number of some graphs in the Euclidean plane. (English) Zbl 0716.05020 Riv. Mat. Univ. Parma, IV. Ser. 15, 47-49 (1989). Reviewer: J.Fiamčík MSC: 05C15 PDF BibTeX XML Cite \textit{D. Marcu}, Riv. Mat. Univ. Parma, IV. Ser. 15, 47--49 (1989; Zbl 0716.05020) OpenURL
Saeli, Donato Complete mappings and incremental ratio in double-loops. (Italian. English summary) Zbl 0715.20045 Riv. Mat. Univ. Parma, IV. Ser. 15, 111-117 (1989). Reviewer: M.Ştefănescu MSC: 20N05 20D60 12K05 PDF BibTeX XML Cite \textit{D. Saeli}, Riv. Mat. Univ. Parma, IV. Ser. 15, 111--117 (1989; Zbl 0715.20045) OpenURL
Squillante, M.; Ventre, A. S. G.; Weber, S. Closure and convergence properties for classes of decomposable measures. (English) Zbl 0714.28015 Riv. Mat. Univ. Parma, IV. Ser. 15, 7-15 (1989). Reviewer: S.Saha MSC: 28E10 PDF BibTeX XML Cite \textit{M. Squillante} et al., Riv. Mat. Univ. Parma, IV. Ser. 15, 7--15 (1989; Zbl 0714.28015) OpenURL
Benini, Anna Near-rings on certain groups. (English) Zbl 0714.16026 Riv. Mat. Univ. Parma, IV. Ser. 15, 149-158 (1989). Reviewer: G.Betsch MSC: 16Y30 PDF BibTeX XML Cite \textit{A. Benini}, Riv. Mat. Univ. Parma, IV. Ser. 15, 149--158 (1989; Zbl 0714.16026) OpenURL
Fischer Servi, Gisèle Finite axiomatizability in bimodal calculi. (English) Zbl 0714.03017 Riv. Mat. Univ. Parma, IV. Ser. 15, 271-287 (1989). Reviewer: L.F.Goble MSC: 03B45 PDF BibTeX XML Cite \textit{G. Fischer Servi}, Riv. Mat. Univ. Parma, IV. Ser. 15, 271--287 (1989; Zbl 0714.03017) OpenURL
Donato, Santi Exterior concurrent vector fields on a pseudo-Riemannian manifold endowed with a D-contact structure. (English) Zbl 0713.53031 Riv. Mat. Univ. Parma, IV. Ser. 15, 191-198 (1989). Reviewer: R.Roşca MSC: 53C40 53C15 PDF BibTeX XML Cite \textit{S. Donato}, Riv. Mat. Univ. Parma, IV. Ser. 15, 191--198 (1989; Zbl 0713.53031) OpenURL
Pellegrini, Silvia On critical q-near-fields. (English) Zbl 0713.16026 Riv. Mat. Univ. Parma, IV. Ser. 15, 247-252 (1989). Reviewer: C.Cotti Ferrero MSC: 16Y30 12K05 PDF BibTeX XML Cite \textit{S. Pellegrini}, Riv. Mat. Univ. Parma, IV. Ser. 15, 247--252 (1989; Zbl 0713.16026) OpenURL
Voskoglou, Michael G. Prime ideals of skew polynomial rings. (English) Zbl 0713.16017 Riv. Mat. Univ. Parma, IV. Ser. 15, 17-25 (1989). Reviewer: D.A.Jordan MSC: 16S36 16W20 16W25 16D25 PDF BibTeX XML Cite \textit{M. G. Voskoglou}, Riv. Mat. Univ. Parma, IV. Ser. 15, 17--25 (1989; Zbl 0713.16017) OpenURL
Cardinali, T.; Papalini, F. An extension of the midpoint convexity concept for multifunctions. (Italian. English summary) Zbl 0712.39028 Riv. Mat. Univ. Parma, IV. Ser. 15, 119-131 (1989). Reviewer: V.C.Boffi MSC: 39B72 26A51 26A15 PDF BibTeX XML Cite \textit{T. Cardinali} and \textit{F. Papalini}, Riv. Mat. Univ. Parma, IV. Ser. 15, 119--131 (1989; Zbl 0712.39028) OpenURL
Khazal, R.; Mukherjee, N. P. A note on maximal subgroups in finite groups. (English) Zbl 0712.20012 Riv. Mat. Univ. Parma, IV. Ser. 15, 165-173 (1989). Reviewer: W.E.Deskins MSC: 20D25 20E28 20D40 20D10 20D30 PDF BibTeX XML Cite \textit{R. Khazal} and \textit{N. P. Mukherjee}, Riv. Mat. Univ. Parma, IV. Ser. 15, 165--173 (1989; Zbl 0712.20012) OpenURL
Romeo, Maurizio Acceleration waves in fluid mixtures. (English) Zbl 0709.76147 Riv. Mat. Univ. Parma, IV. Ser. 15, 69-87 (1989). MSC: 76T99 76B15 PDF BibTeX XML Cite \textit{M. Romeo}, Riv. Mat. Univ. Parma, IV. Ser. 15, 69--87 (1989; Zbl 0709.76147) OpenURL