The τ-invariant and elimination
نویسندگان
چکیده
منابع مشابه
Surgery and the Spinorial Τ-invariant
We associate to a compact spin manifoldM a real-valued invariant τ(M) by taking the supremum over all conformal classes of the infimum inside each conformal class of the first positive Dirac eigenvalue, when the metrics are normalized to unit volume. This invariant is a spinorial analogue of Schoen’s σ-constant, also known as the smooth Yamabe invariant. We prove that if N is obtained from M by...
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ژورنال
عنوان ژورنال: Journal of Algebra
سال: 2010
ISSN: 0021-8693
DOI: 10.1016/j.jalgebra.2010.06.011