Pullback formulae for nearly holomorphic Saito–Kurokawa lifts
نویسندگان
چکیده
منابع مشابه
Lifts, Discrepancy and Nearly Optimal Spectral Gaps
Let G be a graph on n vertices. A 2-lift of G is a graph H on 2n vertices, with a covering map π : H → G. It is not hard to see that all eigenvalues of G are also eigenvalues of H. In addition, H has n “new” eigenvalues. We conjecture that every d-regular graph has a 2-lift such that all new eigenvalues are in the range [−2 √ d− 1, 2 √ d− 1] (If true, this is tight , e.g. by the Alon-Boppana bo...
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ژورنال
عنوان ژورنال: manuscripta mathematica
سال: 2019
ISSN: 0025-2611,1432-1785
DOI: 10.1007/s00229-019-01111-2