fù biàn hán shù lùn
(math.) theory of functions of a complex variable
shí biàn hán shù lùn
(math.) theory of functions of a real variable
jiě xī hán shù lùn
(math.) complex analytic function theory
duī lěi shù lùn
additive number theory (math.)
dài shù hán shù lùn
algebraic function theory (math.)