From Ramanujan graphs to Ramanujan complexes

Lubotzky, A; Parzanchevski, O

Lubotzky, A (corresponding author), Hebrew Univ Jerusalem, Einstein Inst Math, IL-91904 Jerusalem, Israel.

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 2020; 378 (2163):

Abstract

Ramanujan graphs are graphs whose spectrum is bounded optimally. Such graphs have found numerous applications in combinatorics and computer science. I......

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