istan ▁and ▁Bal uch est an ▁Province , ▁Iran . ▁In ▁ 2 0 0 6 , ▁its ▁ ▁population ▁was ▁ 4 5 7 , ▁in ▁ 8 1 ▁families . ▁ ▁References ▁▁ ▁Category : Pop ulated ▁places ▁in ▁Z ah ed an ▁County <0x0A> </s> ▁" Sil ver ▁S ail " ▁is ▁a ▁single ▁by ▁punk ▁rock ▁band ▁W ip ers ▁from ▁the ▁album ▁of ▁the ▁same ▁name . ▁Re leased ▁only ▁on ▁ 7 " ▁gray ▁vin yl , ▁the ▁single ▁version ▁of ▁" Sil ver ▁S ail " ▁differ ed ▁from ▁the ▁album ▁version . ▁ ▁Category : 1 9 9 3 ▁singles ▁Category : W ip ers ▁songs ▁Category : 1 9 9 3 ▁songs <0x0A> </s> ▁Robert ▁Edward ▁" R uf us " ▁Bow en ▁( 2 3 ▁February ▁ 1 9 4 7 ▁– ▁ 3 0 ▁July ▁ 1 9 7 8 ) ▁was ▁an ▁intern ation ally ▁known ▁professor ▁in ▁the ▁Department ▁of ▁Mathemat ics ▁at ▁the ▁University ▁of ▁California , ▁Ber keley , ▁who ▁special ized ▁in ▁dynam ical ▁systems ▁theory . ▁ ▁Bow en ' s ▁work ▁de alt ▁primarily ▁with ▁ax iom ▁A ▁systems , ▁but ▁the ▁methods ▁he ▁used ▁while ▁expl oring ▁topological ▁entropy , ▁symbol ic ▁dynamics , ▁er god ic ▁theory , ▁Mark ov ▁partitions , ▁and ▁invariant ▁measures ▁" have ▁application ▁far ▁beyond ▁the ▁ax iom ▁A ▁systems ▁for ▁which ▁they ▁were ▁invent ed ." ▁ ▁The ▁Bow en ▁L ect ures ▁at ▁the ▁University ▁of