Includes bibliographical references.

Brief profile of Professor Toshikazu Sunada ; An overview of Sunada's work up to age 60 ; Sunada's isospectrality technique: two decades later ; A central limit theorem on modified graphs of nilpotent covering graphs ; Hidden symmetries and spectrum of the Laplacian on an indefinite Riemannian manifold ; Spectra of alternating Hilbert operators ; A Liouville property and its application to the Laplacian of an infinite graph ; A note on zerofree regions for the derivative of Selberg zeta functions ; ChernSimons variation and Deligne cohomology ; Renormalized RauzyVeechZorich inductions ; Visualization of standard realized crystal lattices ; Value distribution and distribution of rational points ; Limiting distributions for geodesics excursions on the modular surface ; On the statistics of the minimal solution of a linear Diophantine equation and uniform distribution of the real part of orbits in hyperbolic spaces ; Computations of spectral radii on scr G paces ; Lengths, quasimorphisms and statistics for free groups ; Semiclassical asymptotics on manifolds with boundary ; On geometric analogues of the Birch and SwinnertonDyer conjecture for low dimensional hyperbolic manifolds ; RaySinger zeta functions for compact flat manifolds ; Bernstein measures on convex polytopes ; Real and complex zeros of Riemannian random waves Atsushi Katsuda and Polly Wee Sy ; Atsushi Katsuda and Polly Wee Sy ; Carolyn Gordon ; Satoshi Ishiwata ; Toshiyuki Kobayashi ; Nobushige Kurokawa and Hiroyuki Ochiai ; Jun Masamune ; Makoto Minamide ; Masanori Morishita and Yuji Terashima ; Takehiko Morita ; Hisashi Naito ; Junjiro Noguchi ; Mark Pollicott ; Morten S Risager and Zeev Rudnick ; Laurent SaloffCoste and Wolfgang Woess ; Matthew Horsham and Richard Sharp ; Nilufer Koldan Igor Prokhorenkov and Mikhail Shubin ; Kenichi Sugiyama ; Toshikazu Sunada and Hajime Urakawa ; Tatsuya Tate ; Steve Zelditch