group additive utility function 群可加效用函数

additive group [数] 加法群

group additive method 基团加和法

divisible additive group [数] 可除加法群

free additive group 自由加法群

ordered additive group [数] 有序加法群

complete additive group [数] 完全加法群

finite additive group 有限加法群

cyclic additive group 循环加群