G-biliaison of ladder pfaffian varieties |
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| Authors: | E De Negri E Gorla |
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| Institution: | 1. Dipartimento di Matematica, Università di Genova, via Dodecaneso 35, 16146 Genova, Italy;2. Institut für Mathematik, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland |
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| Abstract: | The ideals generated by pfaffians of mixed size contained in a subladder of a skew-symmetric matrix of indeterminates define arithmetically Cohen–Macaulay, projectively normal, reduced and irreducible projective varieties. We show that these varieties belong to the G-biliaison class of a complete intersection. In particular, they are glicci. |
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