JournalsprimsVol. 25, No. 3Publications of the Research Institute for Mathematical SciencesVolume 25, Number 3, 1989DOI: 10.4171/prims | ISSN: 0034-5318 | eISSN: 1663-4926Orbital Stability of the Periodic Solutions of Autonomous Systems with Impulse EffectPavel S. SimeonovD. D. Bainovpp. 321–346A Remark on the Decomposition of Abelian Fiber Spaces over CurvesYoshio Fujimotopp. 347–354On the <i>p</i>-Regularlty of Stiefel ManifoldsAtsushi Yamaguchipp. 355–380Local Existence Theorems and Blow-up of Solutions for Quasi-linear Hyperbolic Cauchy Problems in a Domain with Characteristic Boundary Generated by Initial DataReiko Sakamotopp. 381–405Lifting Problem of η and Mahowald's Element η<sub>j</sub>Kaoru Morisugipp. 407–414Proofs and Programs: A Naïve Approach to Program ExtractionHayao Nakaharapp. 415–489On the Boundary Value of a Solution of the Heat EquationTakahiro KawaiTadato Matsuzawapp. 491–498On the Infinite Dimensionality of the Middle <i>L</i><sup>2</sup> Cohomology of Complex DomainsTakeo Ohsawapp. 499–502A PoIncare-BIrkhoff-Witt Theorem for Quantized Universal Enveloping Algebras of Type <i>A<sub>N</sub></i>Hiroyuki Yamanepp. 503–520

Orbital Stability of the Periodic Solutions of Autonomous Systems with Impulse EffectPavel S. SimeonovD. D. Bainovpp. 321–346

Local Existence Theorems and Blow-up of Solutions for Quasi-linear Hyperbolic Cauchy Problems in a Domain with Characteristic Boundary Generated by Initial DataReiko Sakamotopp. 381–405

On the Infinite Dimensionality of the Middle <i>L</i><sup>2</sup> Cohomology of Complex DomainsTakeo Ohsawapp. 499–502

A PoIncare-BIrkhoff-Witt Theorem for Quantized Universal Enveloping Algebras of Type <i>A<sub>N</sub></i>Hiroyuki Yamanepp. 503–520