ott , ▁B ren nan ▁Hol tz c law , ▁Dan ▁P atter son ▁and ▁Curt ▁Der r . ▁ ▁History ▁This ▁station ▁originally ▁went ▁on ▁the ▁air ▁October ▁ 1 5 , ▁ 2 0 0 7 . ▁ ▁References ▁ ▁External ▁links ▁▁▁ ▁T CM ▁Category : Ma con ▁County , ▁Missouri ▁Category : Alpha ▁Media ▁radio ▁stations <0x0A> </s> ▁Franz ▁Josef ▁H auer ▁was ▁a ▁mayor ▁of ▁Vienna . ▁ ▁References ▁▁ ▁Category : May ors ▁of ▁Vienna ▁Category : 1 8 th - century ▁Aust rian ▁people <0x0A> </s> ▁In ▁mathematics , ▁an ▁automatic ▁sem igr oup ▁is ▁a ▁finit ely ▁generated ▁sem igr oup ▁equ ipped ▁with ▁several ▁regular ▁languages ▁over ▁an ▁alphabet ▁representing ▁a ▁generating ▁set . ▁One ▁of ▁these ▁languages ▁determ ines ▁" can on ical ▁forms " ▁for ▁the ▁elements ▁of ▁the ▁sem igr oup , ▁the ▁other ▁languages ▁determine ▁if ▁two ▁canonical ▁forms ▁represent ▁elements ▁that ▁differ ▁by ▁multiplication ▁by ▁a ▁generator . ▁ ▁Form ally , ▁let ▁ ▁be ▁a ▁sem igr oup ▁and ▁ ▁be ▁a ▁finite ▁set ▁of ▁gener ators . ▁ ▁Then ▁an ▁automatic ▁structure ▁for ▁ ▁with ▁respect ▁to ▁ ▁consists ▁of ▁a ▁regular ▁language ▁ ▁over ▁ ▁such ▁that ▁every ▁element ▁of ▁ ▁has ▁at ▁least ▁one ▁representative ▁in ▁ ▁and ▁such ▁that ▁for ▁each ▁, ▁the ▁relation ▁consisting ▁of ▁pairs ▁ ▁with ▁ ▁is ▁regular , ▁viewed ▁as ▁a ▁subset ▁of ▁( A # ▁× ▁A # ) *. ▁Here ▁A # ▁is ▁A ▁augment ed ▁with