JournalsprimsVol. 50, No. 1Publications of the Research Institute for Mathematical SciencesVolume 50, Number 1, 2014DOI: 10.4171/prims | ISSN: 0034-5318 | eISSN: 1663-4926Twisted Plane Wave Expansions Using Hypercomplex MethodsFabrizio ColomboIrene SabadiniFranciscus SommenDaniele C. Struppapp. 1–18On a WKB-Theoretic Transformation for a Completely Integrable System near a Degenerate Point where Two Turning Points CoalesceSampei Hirosepp. 19–84Some Remarks on the Semipositivity TheoremsOsamu FujinoTaro FujisawaMorihiko Saitopp. 85–112Witt Groups of Algebraic GroupsNobuaki Yagitapp. 113–151On the Ampleness of Positive CR Line Bundles over Levi-flat ManifoldsMasanori Adachipp. 153–167Visualizing Overtwisted Discs in Open BooksTetsuya ItoKeiko Kawamuropp. 169–180
Twisted Plane Wave Expansions Using Hypercomplex MethodsFabrizio ColomboIrene SabadiniFranciscus SommenDaniele C. Struppapp. 1–18
On a WKB-Theoretic Transformation for a Completely Integrable System near a Degenerate Point where Two Turning Points CoalesceSampei Hirosepp. 19–84
