JournalsprimsVol. 27, No. 4Publications of the Research Institute for Mathematical SciencesVolume 27, No. 4 (1991)DOI 10.4171/PRIMSISSN 0034-5318eISSN 1663-4926pp. 533–550On the Existence of Simple Reducible Vector Bundles on Complex Surfaces of Algebraic Dimension ZeroMatei Tomapp. 551–575On Nagumo's <i>H<sup>s</sup></i>Stability in Singular PerturbationsRyuichi Ashinopp. 577–625Weak Equivalence and the Structures of Cocycles of an Ergodic AutomorphismSergey I. BezuglyiValentin Ya. Golodetspp. 627–637Finlteness Obstructions of Equivariant FibrationsToshio Sumipp. 639–655New <i>R</i> Matrices Associated with Cyclic Representations of <i>U<sub>q</sub></i>(<i>A</i><sub>2</sub><sup>(2)</sup>)Etsuro DateMichio JimboKei MikiTetsuji Miwapp. 657–679On Ground State Degeneracy of <i>Z</i><sub>2</sub> Symmetric Quantum Spin ModelsTaku Matsuipp. 681–693Neighborhood of a Rational Curve with a NodeTetsuo Ueda
pp. 533–550On the Existence of Simple Reducible Vector Bundles on Complex Surfaces of Algebraic Dimension ZeroMatei Toma
pp. 577–625Weak Equivalence and the Structures of Cocycles of an Ergodic AutomorphismSergey I. BezuglyiValentin Ya. Golodets
pp. 639–655New <i>R</i> Matrices Associated with Cyclic Representations of <i>U<sub>q</sub></i>(<i>A</i><sub>2</sub><sup>(2)</sup>)Etsuro DateMichio JimboKei MikiTetsuji Miwa
pp. 657–679On Ground State Degeneracy of <i>Z</i><sub>2</sub> Symmetric Quantum Spin ModelsTaku Matsui
