Q:What key details about leonida tonelli can be extracted from the following bio? Bio: leonida tonelli -lrb- 19 april 1885 -- 12 march 1946 -rrb- was an italian mathematician , noted for creating tonelli 's theorem , a variation of fubini 's theorem , and for introducing semicontinuity methods as a common tool for the direct method in the calculus of variations .
A:
- death place is pisa , italy- doctoral students is lamberto cesari , guido stampacchia- known for is tonelli 's theorem- death date is 12 march 1946- field is mathematics- workplaces is university university of pisa scuola normale superiore of cagliari university of parma university of bologna- doctoral advisor is cesare arzela- birth date is 19 april 1885- name is leonida tonelli- image size is 220px- nationality is italian- image is leonida tonelli.jpg- birth place is gallipoli , apulia , italy- alma mater is university of bologna