Nonlinear spectral calculus and super-expanders

Mendel, Manor; Naor, Assaf

doi:10.1007/s10240-013-0053-2

Mendel, Manor ¹ ; Naor, Assaf ²

¹ Mathematics and Computer Science Department, Open University of Israel P.O. Box 808 1 University Road 43107 Raanana Israel
² Courant Institute, New York University 251 Mercer Street 10012 New York NY USA

Publications Mathématiques de l'IHÉS, Tome 119 (2014), pp. 1-95.

Résumé

Nonlinear spectral gaps with respect to uniformly convex normed spaces are shown to satisfy a spectral calculus inequality that establishes their decay along Cesàro averages. Nonlinear spectral gaps of graphs are also shown to behave sub-multiplicatively under zigzag products. These results yield a combinatorial construction of super-expanders, i.e., a sequence of 3-regular graphs that does not admit a coarse embedding into any uniformly convex normed space.

Zbl | 1 citation dans Numdam

DOI : 10.1007/s10240-013-0053-2

Mots-clés : Banach Space, Regular Graph, Graph Product, Base Graph, Expander Graph

Affiliations des auteurs :

Mendel, Manor ¹ ; Naor, Assaf ²

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Mendel, Manor; Naor, Assaf. Nonlinear spectral calculus and super-expanders. Publications Mathématiques de l'IHÉS, Tome 119 (2014), pp. 1-95. doi : 10.1007/s10240-013-0053-2. https://www.numdam.org/articles/10.1007/s10240-013-0053-2/

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