Normal bicanonical and tricanonical threefolds

The first author to construct a non-normal bicanonical threefold in P 4 was L. Godeaux in 1936 [5]. This threefold has degree 8. In the first part of the present paper, starting from a normal threefold of general type where q1 = q2 = pg = 0, P2 = P3 = 5, of degree 6 (cf. [11]), we construct Gode...

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Bibliographic Details
Main Author: EZIO STAGNARO
Format: Article
Language:English
Published: Sapienza Università Editrice 2017-06-01
Series:Rendiconti di Matematica e delle Sue Applicazioni
Subjects:
Online Access:http://www1.mat.uniroma1.it/ricerca/rendiconti/ARCHIVIO/2017(2)/199-220.pdf