JournalsggdVol. 5, No. 2Volume 5, No. 2 (2011) Groups, Geometry, and Dynamicspp. 207–211Editorialpp. 213–230The rank gradient from a combinatorial viewpointMiklós AbértAndrei Jaikin-ZapirainNikolay Nikolovpp. 231–250The moduli space of Keum–Naie surfacesIngrid BauerFabrizio Catanesepp. 251–264Lattices with and lattices without spectral gapBachir BekkaAlexander Lubotzkypp. 265–280Random pro-ppp groups, braid groups, and random tame Galois groupsNigel BostonJordan S. Ellenbergpp. 281–299Suzuki groups as expandersEmmanuel BreuillardBen J. GreenTerence Taopp. 301–325On the difficulty of presenting finitely presentable groupsMartin R. BridsonHenry Wiltonpp. 327–353The congruence subgroup property for Aut F2F_2F2: A group-theoretic proof of Asada’s theoremKai-Uwe BuxMikhail ErshovAndrei S. Rapinchukpp. 355–366Mod-ppp cohomology growth in ppp-adic analytic towers of 3-manifoldsFrank CalegariMatthew Emertonpp. 367–391On the Arthur–Selberg trace formula for GL(2)Tobias FinisErez Lapidpp. 393–444Interpolating coefficient systems and ppp-ordinary cohomology of arithmetic groupsGünter Harderpp. 445–477Subspace arrangements and property TMartin Kassabovpp. 479–499Grothendieck’s problem for 3-manifold groupsDarren D. LongAlan W. Reidpp. 501–507Powers in finite groupsNikolay NikolovDan Segalpp. 509–527Words and mixing times in finite simple groupsGili SchulAner Shalevpp. 529–552Geometric cycles, Albert algebras and related cohomology classes for arithmetic groupsJoachim Schwermerpp. 553–565Reduction theory of point clusters in projective spaceMichael Stoll
pp. 213–230The rank gradient from a combinatorial viewpointMiklós AbértAndrei Jaikin-ZapirainNikolay Nikolov
pp. 265–280Random pro-ppp groups, braid groups, and random tame Galois groupsNigel BostonJordan S. Ellenberg
pp. 327–353The congruence subgroup property for Aut F2F_2F2: A group-theoretic proof of Asada’s theoremKai-Uwe BuxMikhail ErshovAndrei S. Rapinchuk
pp. 355–366Mod-ppp cohomology growth in ppp-adic analytic towers of 3-manifoldsFrank CalegariMatthew Emerton
pp. 393–444Interpolating coefficient systems and ppp-ordinary cohomology of arithmetic groupsGünter Harder
pp. 529–552Geometric cycles, Albert algebras and related cohomology classes for arithmetic groupsJoachim Schwermer