; TeX output 2002.07.15:16323ڍ& "V cmbx10Impro9vementsTtotheA TLAS{IQIHaK`y cmr10This listcontainsimprovementsnotinAppGendix2of\AnAtlasofBrauercharacters"(byJansen,Lux, Parker&Wilson,$OUP1995),hithertoreferredtoasABC.Whilesomeofthemarenew(i.e.notdiscoveredat',thetimeofpublicationofABC),othersweredelibGeratelyleftoutofABC' becausetheywerenotthoughtsigni cantenough,ҨorbGecausetheydidnot ttheformatofABC;butwebGelievethattheyareworthkeepingonUUrecord. AAsinABC,wedenotemathematicalerrorsby***andnewinformationbyNEW. \W*euseCtodenoteimprovementsconcerninggrammarornotationalconsistency;)RandMtorefertomisprintsorcasesofillegibility*.zChangesareshowninorderofappGearance.zNewreferencesarenotshown.zTheinclusionorotherwiseIofanymoGdi cationisnotintendedtoimplyanythingabGoutitsinclusioninanyfutureA*TLASpublication.AUUcharactertableinA*TLASformathasbGeenobtainedfor^ٓRcmr72 b> cmmi10E6|s(2):3.HaIn9troQduction\uC"ZPageUUivW :_G"T*op,UUinsert\page"bGefore\number".jM"ZPageUUviiW :_G"T*opUUleft,changeheadofSection1toPreliminaries.\uCW :_G"SectionUU2,change\to"to\from"after\di erently".NEW"ZPageUUxiW :_G"Middlenright,forsakeofcompletenessappGenddescriptionoforthogonalgroupsin_G"dimensionsUU1and2.\uC"ZPageUUxivW :_G"MiddleUUleft,omit\to"in\alsotospGecify".jM"ZPageUUxxvW :_G"SectionUU5,insertiin\contans".\uC"ZPageUUxxixW :_G"MiddleUUright,singularize\act".NEWW :_G"InZcSection18,spGecifynotationalconventionZcwherebothcosetandcohortare_G"\squashed".\uC"ZPageUUxxW :_G"MiddleUUright,insert\it"bGetween\which"and\bGecomes".jM"ZPageUUxxxiW :_G"SectionUU1,replace\proGduct"by\produce".HaTheTGroupsNEW"ZPageF:4U cmmi10ٓRcmr7K`y cmr10.