Manfredi, Bianca Giorgio Sestini in Parma: 1949-1956. (Italian) Zbl 0755.01037 Riv. Mat. Univ. Parma, IV. Ser. 17, 333-336 (1991). MSC: 01A70 01A60 PDF BibTeX XML Cite \textit{B. Manfredi}, Riv. Mat. Univ. Parma, IV. Ser. 17, 333--336 (1991; Zbl 0755.01037)
Fuchs, P. R. A decoding method for planar near-ring codes. (English) Zbl 0770.16018 Riv. Mat. Univ. Parma, IV. Ser. 17, 325-331 (1991). Reviewer: G.Ferrero (Parma) MSC: 16Y30 94B35 05B05 PDF BibTeX XML Cite \textit{P. R. Fuchs}, Riv. Mat. Univ. Parma, IV. Ser. 17, 325--331 (1991; Zbl 0770.16018)
Nivas, R.; Ahmad, S. On quaternion submanifolds of codimension \(r\). (English) Zbl 0758.53021 Riv. Mat. Univ. Parma, IV. Ser. 17, 319-323 (1991). Reviewer: C.-L.Tiba (Iaşi) MSC: 53C15 53C40 PDF BibTeX XML Cite \textit{R. Nivas} and \textit{S. Ahmad}, Riv. Mat. Univ. Parma, IV. Ser. 17, 319--323 (1991; Zbl 0758.53021)
Konderak, Jerzy J. An example of an almost Hermitian flat manifold which is not Hermitian. (English) Zbl 0758.53011 Riv. Mat. Univ. Parma, IV. Ser. 17, 315-318 (1991). Reviewer: C.-L.Tiba (Iaşi) MSC: 53B35 PDF BibTeX XML Cite \textit{J. J. Konderak}, Riv. Mat. Univ. Parma, IV. Ser. 17, 315--318 (1991; Zbl 0758.53011)
Falcitelli, M.; Farinola, A. Locally conformal Kähler manifolds with pointwise constant antiholomorphic sectional curvature. (English) Zbl 0754.53050 Riv. Mat. Univ. Parma, IV. Ser. 17, 295-314 (1991). Reviewer: L.Vanhecke (Heverlee) MSC: 53C55 PDF BibTeX XML Cite \textit{M. Falcitelli} and \textit{A. Farinola}, Riv. Mat. Univ. Parma, IV. Ser. 17, 295--314 (1991; Zbl 0754.53050)
Tamia Dimopoulou, P. On direction dependent \(f\)-structures satisfying \(f^ s+f^ t=0\). (English) Zbl 0753.53043 Riv. Mat. Univ. Parma, IV. Ser. 17, 279-293 (1991). Reviewer: M.de León (Madrid) MSC: 53C60 PDF BibTeX XML Cite \textit{P. Tamia Dimopoulou}, Riv. Mat. Univ. Parma, IV. Ser. 17, 279--293 (1991; Zbl 0753.53043)
Bajnov, D. D.; Kostadinov, S. I.; Zabrejko, P. P. Stability of the exponential dichotomy of linear impulsive differential equations. (English) Zbl 0765.34040 Riv. Mat. Univ. Parma, IV. Ser. 17, 271-277 (1991). Reviewer: Yu.S.Eidel’man (Voronezh) MSC: 34G10 34A37 34D05 PDF BibTeX XML Cite \textit{D. D. Bajnov} et al., Riv. Mat. Univ. Parma, IV. Ser. 17, 271--277 (1991; Zbl 0765.34040)
Antonucci, Salvatore Constructing regular graphs. (Italian) Zbl 0771.05083 Riv. Mat. Univ. Parma, IV. Ser. 17, 265-270 (1991). Reviewer: K.G.Brokate (Leonberg) MSC: 05C75 05C15 05C35 PDF BibTeX XML Cite \textit{S. Antonucci}, Riv. Mat. Univ. Parma, IV. Ser. 17, 265--270 (1991; Zbl 0771.05083)
Saccoman, J. J. Evolution of the geometric Hahn-Banach theorem. (English) Zbl 0810.46007 Riv. Mat. Univ. Parma, IV. Ser. 17, 257-264 (1991). Reviewer: P.Kruszyński (Delft) MSC: 46A22 46-03 01A60 PDF BibTeX XML Cite \textit{J. J. Saccoman}, Riv. Mat. Univ. Parma, IV. Ser. 17, 257--264 (1991; Zbl 0810.46007)
Mangione, Vittorio DM structures on a manifold. (Italian. English summary) Zbl 0796.53032 Riv. Mat. Univ. Parma, IV. Ser. 17, 247-255 (1991). MSC: 53C15 PDF BibTeX XML Cite \textit{V. Mangione}, Riv. Mat. Univ. Parma, IV. Ser. 17, 247--255 (1991; Zbl 0796.53032)
Ashraf, M.; Quadri, M. A. Some commutativity theorems for torsion free rings. (English) Zbl 0798.16020 Riv. Mat. Univ. Parma, IV. Ser. 17, 241-245 (1991). Reviewer: H.E.Bell (St.Catherines) MSC: 16U70 16U80 16R40 PDF BibTeX XML Cite \textit{M. Ashraf} and \textit{M. A. Quadri}, Riv. Mat. Univ. Parma, IV. Ser. 17, 241--245 (1991; Zbl 0798.16020)
Gianazza, Ugo Potential estimate for the obstacle problem relative to the sum of squares of vector fields. (English) Zbl 0777.35027 Riv. Mat. Univ. Parma, IV. Ser. 17, 221-239 (1991). Reviewer: L.Ambrosio (Pisa) MSC: 35J85 35B65 PDF BibTeX XML Cite \textit{U. Gianazza}, Riv. Mat. Univ. Parma, IV. Ser. 17, 221--239 (1991; Zbl 0777.35027)
Conti, Roberto Strictly stable linear ordinary differential equations and similarity. (English) Zbl 0758.34005 Riv. Mat. Univ. Parma, IV. Ser. 17, 217-220 (1991). Reviewer: A.Ilchmann (Exeter) MSC: 34A30 34A25 PDF BibTeX XML Cite \textit{R. Conti}, Riv. Mat. Univ. Parma, IV. Ser. 17, 217--220 (1991; Zbl 0758.34005)
Voskoglou, Michael G. Prime and semiprime ideals of skew Laurent polynomial rings. (English) Zbl 0794.16018 Riv. Mat. Univ. Parma, IV. Ser. 17, 211-215 (1991). MSC: 16S36 16D25 16W20 PDF BibTeX XML Cite \textit{M. G. Voskoglou}, Riv. Mat. Univ. Parma, IV. Ser. 17, 211--215 (1991; Zbl 0794.16018)
Paul, Yash Ideals in antiflexible rings. (English) Zbl 0761.17001 Riv. Mat. Univ. Parma, IV. Ser. 17, 207-210 (1991). Reviewer: I.R.Hentzel (Ames) MSC: 17A30 17A60 17A65 PDF BibTeX XML Cite \textit{Y. Paul}, Riv. Mat. Univ. Parma, IV. Ser. 17, 207--210 (1991; Zbl 0761.17001)
Srivastava, Bhaskar A continued fraction and some identities associated with Ramanujan. (English) Zbl 0762.33010 Riv. Mat. Univ. Parma, IV. Ser. 17, 199-206 (1991). Reviewer: David M. Bressoud (University Park) MSC: 33D15 11P84 11A55 PDF BibTeX XML Cite \textit{B. Srivastava}, Riv. Mat. Univ. Parma, IV. Ser. 17, 199--206 (1991; Zbl 0762.33010)
Giovine, Pasquale Note on constitutive equations for superfluid helium. (Italian) Zbl 0755.76005 Riv. Mat. Univ. Parma, IV. Ser. 17, 191-198 (1991). Reviewer: I.Oprea (Bucureşti) MSC: 76A05 80A17 82D50 PDF BibTeX XML Cite \textit{P. Giovine}, Riv. Mat. Univ. Parma, IV. Ser. 17, 191--198 (1991; Zbl 0755.76005)
Bianchi, Monica Hölder regularity of the solution of the obstacle problem concerning certain elliptic operators. (Italian) Zbl 0777.35026 Riv. Mat. Univ. Parma, IV. Ser. 17, 181-190 (1991). Reviewer: L.Ambrosio (Pisa) MSC: 35J85 35B65 PDF BibTeX XML Cite \textit{M. Bianchi}, Riv. Mat. Univ. Parma, IV. Ser. 17, 181--190 (1991; Zbl 0777.35026)
Balachandran, K.; Anguraj, A. Existence, continuous dependence and periodic solutions of nonlinear integrodifferential equation with infinite delay. (English) Zbl 0756.45011 Riv. Mat. Univ. Parma, IV. Ser. 17, 171-180 (1991). Reviewer: I.Foltyńska (Poznań) MSC: 45J05 45G15 45M15 PDF BibTeX XML Cite \textit{K. Balachandran} and \textit{A. Anguraj}, Riv. Mat. Univ. Parma, IV. Ser. 17, 171--180 (1991; Zbl 0756.45011)
Ciarletta, M.; Scarpetta, E. On existence and uniqueness for viscoelastic compressible fluids. (English) Zbl 0759.76008 Riv. Mat. Univ. Parma, IV. Ser. 17, 159-169 (1991). Reviewer: H.Ramkissoon (St.Augustine) MSC: 76A10 35Q35 35D05 PDF BibTeX XML Cite \textit{M. Ciarletta} and \textit{E. Scarpetta}, Riv. Mat. Univ. Parma, IV. Ser. 17, 159--169 (1991; Zbl 0759.76008)
Grimaldi, Renata Fibered knots and links and asymptotic geometry of foliations. (Noeuds et links fibrés et géométrie asymptotique de feuilles.) (French) Zbl 0755.57011 Riv. Mat. Univ. Parma, IV. Ser. 17, 149-158 (1991). Reviewer: L.Conlon (St.Louis) MSC: 57R30 57N10 PDF BibTeX XML Cite \textit{R. Grimaldi}, Riv. Mat. Univ. Parma, IV. Ser. 17, 149--158 (1991; Zbl 0755.57011)
Etayo Gordejuela, Fernando The geometry of good squares of vector bundles. (English) Zbl 0761.53017 Riv. Mat. Univ. Parma, IV. Ser. 17, 131-147 (1991). Reviewer: A.M.Pastore (Bari) MSC: 53C05 PDF BibTeX XML Cite \textit{F. Etayo Gordejuela}, Riv. Mat. Univ. Parma, IV. Ser. 17, 131--147 (1991; Zbl 0761.53017)
Reznikov, Alexander G. The space of spheres and conformal geometry. (English) Zbl 0759.53005 Riv. Mat. Univ. Parma, IV. Ser. 17, 111-130 (1991). Reviewer: R.Sulanke (Berlin) MSC: 53A30 53C65 PDF BibTeX XML Cite \textit{A. G. Reznikov}, Riv. Mat. Univ. Parma, IV. Ser. 17, 111--130 (1991; Zbl 0759.53005)
Milev, N. V.; Bajnov, D. D. Exponential stability of linear impulsive differential equations. (English) Zbl 0762.34031 Riv. Mat. Univ. Parma, IV. Ser. 17, 99-109 (1991). Reviewer: V.Lakshmikantham (Melbourne / Florida) MSC: 34D20 34A37 34A30 PDF BibTeX XML Cite \textit{N. V. Milev} and \textit{D. D. Bajnov}, Riv. Mat. Univ. Parma, IV. Ser. 17, 99--109 (1991; Zbl 0762.34031)
Frigon, M.; Granas, A. Boundary value problems for differential inclusions of lower semicontinuous type. (Problèmes aux limites pour des inclusions différentielles de type semi-continues inférieurement.) (French) Zbl 0756.34021 Riv. Mat. Univ. Parma, IV. Ser. 17, 87-97 (1991). Reviewer: A.L.Dontchev (Ann Arbor) MSC: 34A60 34B15 49J24 PDF BibTeX XML Cite \textit{M. Frigon} and \textit{A. Granas}, Riv. Mat. Univ. Parma, IV. Ser. 17, 87--97 (1991; Zbl 0756.34021)
Ben Ammar, Mohamed Iwasawa decomposition of the spin group. (Décomposition d’Iwasawa du groupe spinoriel.) (French) Zbl 0763.22009 Riv. Mat. Univ. Parma, IV. Ser. 17, 83-86 (1991). Reviewer: H.Reitberger (Innsbruck) MSC: 22E43 22E70 15A66 PDF BibTeX XML Cite \textit{M. Ben Ammar}, Riv. Mat. Univ. Parma, IV. Ser. 17, 83--86 (1991; Zbl 0763.22009)
Cimatti, Giovanni Note on the theory of temperature dependent resistors. (English) Zbl 0772.35073 Riv. Mat. Univ. Parma, IV. Ser. 17, 69-82 (1991). MSC: 35Q60 78A55 PDF BibTeX XML Cite \textit{G. Cimatti}, Riv. Mat. Univ. Parma, IV. Ser. 17, 69--82 (1991; Zbl 0772.35073)
Cardinali, T.; Papalini, F. On the existence of fixed points of multifunctions having weakly closed graphs. (Italian. English summary) Zbl 0810.47050 Riv. Mat. Univ. Parma, IV. Ser. 17, 59-67 (1991). Reviewer: P.Kruszyński (Delft) MSC: 47H10 58C30 PDF BibTeX XML Cite \textit{T. Cardinali} and \textit{F. Papalini}, Riv. Mat. Univ. Parma, IV. Ser. 17, 59--67 (1991; Zbl 0810.47050)
Buchner, K.; Goldberg, V. V.; Rosca, R. Biconformal cosymplectic manifolds. (English) Zbl 0812.53037 Riv. Mat. Univ. Parma, IV. Ser. 17, 41-58 (1991). MSC: 53C15 PDF BibTeX XML Cite \textit{K. Buchner} et al., Riv. Mat. Univ. Parma, IV. Ser. 17, 41--58 (1991; Zbl 0812.53037)
Abbena, E.; Garbiero, S. Einstein metrics on some special manifolds. (English) Zbl 0815.53053 Riv. Mat. Univ. Parma, IV. Ser. 17, 29-39 (1991). MSC: 53C25 PDF BibTeX XML Cite \textit{E. Abbena} and \textit{S. Garbiero}, Riv. Mat. Univ. Parma, IV. Ser. 17, 29--39 (1991; Zbl 0815.53053)
Xin, Lin Rings in which all proper ideals are isomorphic. (English) Zbl 0791.16001 Riv. Mat. Univ. Parma, IV. Ser. 17, 21-27 (1991). Reviewer: H.Pop (Los Angeles) MSC: 16D25 13A15 PDF BibTeX XML Cite \textit{L. Xin}, Riv. Mat. Univ. Parma, IV. Ser. 17, 21--27 (1991; Zbl 0791.16001)
Cavicchioli, Alberto Möbius transformations and surface groups. (English) Zbl 0776.30031 Riv. Mat. Univ. Parma, IV. Ser. 17, 7-20 (1991). Reviewer: T.Başkan (Görükle-Bursa) MSC: 30F35 20F05 32J15 20H10 PDF BibTeX XML Cite \textit{A. Cavicchioli}, Riv. Mat. Univ. Parma, IV. Ser. 17, 7--20 (1991; Zbl 0776.30031)
Garcia-Nogales, A. \({\mathcal K}\)-analyticity of spaces of compact and nuclear operators. (English) Zbl 0774.46008 Riv. Mat. Univ. Parma, IV. Ser. 17, 1-5 (1991). Reviewer: L.Janos (Los Angeles) MSC: 46A32 47L05 47B10 PDF BibTeX XML Cite \textit{A. Garcia-Nogales}, Riv. Mat. Univ. Parma, IV. Ser. 17, 1--5 (1991; Zbl 0774.46008)