▁a ▁university ▁professor ▁and ▁her ▁mother ▁a ▁language ▁teacher ▁at ▁the ▁l yc ée . ▁So on ▁afterwards ▁she ▁moved ▁to ▁Switzerland ▁with ▁her ▁parents , ▁esc aping ▁the ▁un rest ▁in ▁Russia ▁that ▁her ▁mother , ▁E ul al ie ▁Pic card , ▁would ▁become ▁known ▁for ▁writing ▁about . ▁Soph ie ▁Pic card ' s ▁Russian ▁degree ▁was ▁worth less ▁in ▁Switzerland , ▁and ▁she ▁earned ▁another ▁from ▁the ▁University ▁of ▁La us anne ▁in ▁ 1 9 2 7 , ▁going ▁on ▁to ▁complete ▁a ▁doctor ate ▁there ▁in ▁ 1 9 2 9 ▁under ▁the ▁super vision ▁of ▁D mit ry ▁Mir im ano ff . ▁ ▁Career ▁and ▁later ▁life ▁She ▁worked ▁outside ▁of ▁mathematics ▁until ▁ 1 9 3 6 , ▁when ▁she ▁began ▁teaching ▁part - time ▁at ▁the ▁University ▁of ▁Ne uch ât el ▁as ▁an ▁assistant ▁to ▁Rudolf ▁Gab er el . ▁Gab er el ▁died ▁in ▁ 1 9 3 8 ▁and ▁she ▁inherited ▁his ▁position , ▁becoming ▁a ▁professor ▁extra ordin arius ▁( associ ate ▁professor ); ▁she ▁was ▁promoted ▁to ▁professor ▁ordin arius ▁in ▁ 1 9 4 3 , ▁as ▁the ▁chair ▁of ▁higher ▁geometry ▁and ▁probability ▁theory ▁at ▁Ne uch ât el . ▁ ▁Pic card ▁died ▁on ▁January ▁ 6 , ▁ 1 9 9 0 ▁in ▁F rib ourg . ▁ ▁Cont ribution s ▁Pic card ▁was ▁an ▁invited ▁speaker ▁at ▁the ▁International ▁Congress ▁of ▁Mathemat icians ▁in ▁ 1 9 3 2 ▁and ▁again ▁in ▁