▁production ▁on ▁eight ▁of ▁the ▁ten ▁episodes ▁before ▁production ▁shut ▁down . ▁F X ▁will ▁determine ▁a ▁new ▁premi ere ▁date ▁once ▁production ▁res umes . ▁ ▁References ▁ ▁External ▁links ▁▁▁▁▁▁▁ ▁Category : T ele vision ▁series ▁set ▁in ▁the ▁ 1 9 5 0 s ▁Category : Up coming ▁television ▁seasons ▁Category : T ele vision ▁produ ctions ▁susp ended ▁due ▁to ▁the ▁ 2 0 1 9 – 2 0 ▁coron av irus ▁pan demic <0x0A> </s> ▁Ig or ▁Rost is lav ov ich ▁Sh af are v ich ▁ ▁( ; ▁ 3 ▁June ▁ 1 9 2 3 ▁– ▁ 1 9 ▁February ▁ 2 0 1 7 ) ▁was ▁a ▁Russian ▁math ematic ian ▁who ▁contributed ▁to ▁algebraic ▁number ▁theory ▁and ▁algebraic ▁geometry . ▁He ▁wrote ▁books ▁and ▁articles ▁that ▁critic ize ▁social ism , ▁and ▁was ▁an ▁important ▁diss ident ▁during ▁the ▁Soviet ▁regime . ▁ ▁Sh af are v ich ▁died ▁on ▁ 1 9 ▁February ▁ 2 0 1 7 ▁in ▁Moscow , ▁at ▁the ▁age ▁of ▁ 9 3 . ▁ ▁Work ▁in ▁mathematics ▁Sh af are v ich ▁made ▁fundamental ▁contributions ▁to ▁several ▁parts ▁of ▁mathematics ▁including ▁algebraic ▁number ▁theory , ▁algebraic ▁geometry ▁and ▁arithmetic ▁algebraic ▁geometry . ▁In ▁algebraic ▁number ▁theory ▁the ▁Sh af are v ich – We il ▁theorem ▁extends ▁the ▁commut ative ▁reci pro city ▁map ▁to ▁the ▁case ▁of ▁Gal ois ▁groups ▁which ▁are ▁extensions ▁of ▁ab elian ▁groups ▁by ▁finite ▁groups . ▁Sh af are v