Displaying similar documents to “Circle bundles, adiabatic limits of η -invariants and Rokhlin congruences”

Simplicity of generic Steiner bundles

Maria Chiara Brambilla (2005)

Bollettino dell'Unione Matematica Italiana

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A Steiner bundle E on P n has a linear resolution of the form 0 O - 1 s O t E 0 . In this paper we prove that a generic Steiner bundle E is simple if and only if χ End E is less or equal to 1. In particular we show that either E is exceptional or it satisfies the inequality t n + 1 + n + 1 2 - 4 2 s .