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[null,"1.","Record Nr.",null,"UNINA9910480776503321"]
[null,null,"Autore",null,"Persson Ulf <1950->"]
[null,null,"Titolo",null,"On degenerations of algebraic surfaces / / Ulf Persson"]
[null,null,"Pubbl/distr/stampa",null,"Providence : , : American Mathematical Society, , [1977]"]
[{"$nulls":4},"©1977"]
[null,null,"ISBN",null,"1-4704-0103-7"]
[null,null,"Descrizione fisica",null,"1 online resource (163 p.)"]
[null,null,"Collana",null,"Memoirs of the American Mathematical Society ; ; number 189"]
[null,null,"Disciplina",null,"512/.33"]
[null,null,"Soggetti",null,"Surfaces, Algebraic - Degenerations"]
[{"$nulls":4},"Electronic books."]
[null,null,"Lingua di pubblicazione",null,"Inglese"]
[null,null,"Formato",null,"Materiale a stampa"]
[null,null,null,"Livello bibliografico","Monografia"]
[null,null,null,"Note generali","Description based upon print version of record."]
[null,null,null,"Nota di bibliografia","Includes bibliographical references and index."]
[null,null,"Nota di contenuto",null,"\"\"Table of Contents\"\"; \"\"Introduction\"\"; \"\"I. A brief survey of the structure and classification of surfaces\"\"; \"\"Ruled surfaces\"\"; \"\"Elliptic surfaces\"\"; \"\"The classification table of surfaces\"\"; \"\"II. The structure of a degeneration\"\"; \"\"1. The singular fiber\"\"; \"\"2. The local behavior near the singular fiber\"\"; \"\"3. The global structure of N close to N[sub(0)]\"\"; \"\"4. Intersection theory on N and its applications\"\"; \"\"5. The Mayer-Vietoris spectral sequence, and the calculations of the Betti numbers of the general fiber in terms of the special\"\"; \"\"6. Projective Degenerations\"\""]
[{"$nulls":4},"\"\"7. Mixed Hodge structures and the Clemens-Schmid exact sequence\"\"\"\"III. Degenerations of surfaces\"\"; \"\"1. Specializations of birational isomorphisms and some of its applications\"\"; \"\"2. Degenerations of elliptic surfaces\"\"; \"\"3. Degenerations of minimal N = 0 surfaces in the case of no triple points\"\"; \"\"IV. Lemmas on Curves on Surfaces\"\"; \"\"V. Deformations of two surfaces meeting along a non-singular curve\"\"; \"\"1. C is rational\"\"; \"\"2. C is nonrational\"\"; \"\"Bibliography\"\"; \"\"Appendix 1. Elementary examples of degenerations\"\"; \"\"Appendix 2. A degeneration of Enriques surfaces\"\""]
[{"$nulls":4},"\"\"Appendix 3. A degeneration of Godeaux surfaces\"\"\"\"Appendix 4. The index of cruciality for elliptic curves in elliptic ruled surfaces\"\"; \"\"Bibliography of the appendix\"\"; \"\"List of symbols and notational conventions\"\"; \"\"Index\"\""]