▁at ▁Sim ula ▁have ▁been ▁awarded ▁the ▁top ▁grade , ▁Ex cell ent , ▁in ▁all ▁international ▁evalu ations ▁in ▁their ▁lifetime ▁( 2 0 0 1 - 2 0 1 5 ) ▁During ▁this ▁time ▁he ▁has ▁retained ▁his ▁Professor ship ▁at ▁Os lo , ▁and ▁also ▁served ▁as ▁Chair man ▁of ▁the ▁Board ▁of ▁Sim ula ▁In nov ation ▁( 2 0 0 6 - 2 0 0 8 ), ▁K alk ulo ▁( 2 0 0 6 - 2 0 0 8 ), ▁Sim ula ▁School ▁of ▁Research ▁and ▁In nov ation ▁( 2 0 0 7 - 2 0 1 0 ) ▁and ▁Sim ula @ U i B ▁( 2 0 1 6 - ). ▁ ▁T ve ito ▁is ▁a ▁member ▁of ▁the ▁Norwegian ▁Academy ▁of ▁Techn ological ▁Sciences . ▁ ▁Research ▁ ▁T ve ito ' s ▁research ▁has ▁included ▁the ▁numerical ▁solution ▁of ▁linear ▁systems ▁ar ising ▁from ▁the ▁dis cret ization ▁of ▁partial ▁differential ▁equations ; ▁the ▁numerical ▁and ▁mathematical ▁analysis ▁of ▁hyper bol ic ▁conservation ▁laws ; ▁mathematical ▁models ▁of ▁two - phase ▁flow ; ▁ups cal ing ; ▁non linear ▁water ▁waves ; ▁the ▁numerical ▁solution ▁of ▁the ▁Black - Sch oles ▁equations ; ▁parallel ▁computing ▁for ▁partial ▁differential ▁equations ; ▁and ▁numerical ▁software ▁tools . ▁In ▁his ▁early ▁career ▁he ▁focused ▁on ▁numerical ▁analysis , ▁before ▁sh ifting ▁to ▁research ▁on ▁software ▁and ▁computing ▁tools , ▁parallel ▁computing , ▁and ▁the ▁application ▁of ▁computational ▁models ▁in ▁science . ▁ ▁Since ▁