Volume 5, No. 2 (2011)
Groups, Geometry, and Dynamics
pp. 207–211 Editorialpp. 213–230 The rank gradient from a combinatorial viewpointMiklós AbértAndrei Jaikin-ZapirainNikolay Nikolov
pp. 231–250 The moduli space of Keum–Naie surfacesIngrid BauerFabrizio Catanese
pp. 251–264 Lattices with and lattices without spectral gapBachir BekkaAlexander Lubotzky
pp. 265–280 Random pro- groups, braid groups, and random tame Galois groupsNigel BostonJordan S. Ellenberg
pp. 281–299 Suzuki groups as expandersEmmanuel BreuillardBen J. GreenTerence Tao
pp. 301–325 On the difficulty of presenting finitely presentable groupsMartin R. BridsonHenry Wilton
pp. 327–353 The congruence subgroup property for Aut : A group-theoretic proof of Asada’s theoremKai-Uwe BuxMikhail ErshovAndrei S. Rapinchuk
pp. 355–366 Mod- cohomology growth in -adic analytic towers of 3-manifoldsFrank CalegariMatthew Emerton
pp. 367–391 On the Arthur–Selberg trace formula forTobias FinisErez Lapid
pp. 393–444 Interpolating coefficient systems and -ordinary cohomology of arithmetic groupsGünter Harder
pp. 445–477 Subspace arrangements and property TMartin Kassabov
pp. 479–499 Grothendieck’s problem for 3-manifold groupsDarren D. LongAlan W. Reid
pp. 501–507 Powers in finite groupsNikolay NikolovDan Segal
pp. 509–527 Words and mixing times in finite simple groupsGili SchulAner Shalev
pp. 529–552 Geometric cycles, Albert algebras and related cohomology classes for arithmetic groupsJoachim Schwermer
pp. 553–565 Reduction theory of point clusters in projective spaceMichael Stoll