side ▁politics ▁he ▁spent ▁his ▁career ▁in ▁the ▁Norwegian ▁State ▁Rail ways . ▁He ▁started ▁as ▁err and ▁boy ▁in ▁ 1 9 4 0 ▁and ▁left ▁in ▁ 1 9 7 7 ▁as ▁a ▁man aging ▁cl erk . ▁His ▁career ▁ended ▁with ▁the ▁post ▁of ▁County ▁Governor ▁of ▁Bus ker ud , ▁which ▁he ▁held ▁from ▁ 1 9 7 9 ▁to ▁ 1 9 8 9 . ▁ ▁References ▁ ▁Category : 1 9 2 2 ▁birth s ▁Category : 2 0 1 9 ▁death s ▁Category : Lab our ▁Party ▁( N or way ) ▁polit icians ▁Category : May ors ▁of ▁places ▁in ▁Bus ker ud ▁Category : M embers ▁of ▁the ▁St ort ing ▁Category : Min ister s ▁of ▁Fin ance ▁of ▁Norway ▁Category : Count y ▁Govern ors ▁of ▁Norway ▁Category : Min ister s ▁of ▁Transport ▁and ▁Communic ations ▁of ▁Norway ▁Category : 2 0 th - century ▁Norwegian ▁polit icians <0x0A> </s> ▁In ▁conform al ▁field ▁theory ▁and ▁representation ▁theory , ▁a ▁W - algebra ▁is ▁an ▁algebra ▁that ▁general izes ▁the ▁Vir as oro ▁algebra . ▁W - al gebras ▁were ▁introduced ▁by ▁Alexander ▁Zam ol od ch ik ov ▁( ), ▁and ▁the ▁name ▁" W - algebra " ▁comes ▁from ▁the ▁fact ▁that ▁Zam ol od ch ik ov ▁used ▁the ▁letter ▁W ▁for ▁one ▁of ▁the ▁elements ▁of ▁one ▁of ▁his ▁examples . ▁ ▁There ▁are ▁at ▁least ▁three ▁different ▁but ▁related ▁not ions ▁called ▁W - al gebras