C^r -equivalence　C^r 等价（性）

C^r -flow　C^r 流

C^r -foliation　C^r 叶状结构

C^∞ -function　C^∞ 函数

C^k -function　C^k 函数

C^r -function　C^r 函数

-group　 群

C^ω -homomorphism　C^ω 同态

C^r -isomorphism　C^r 同构

• billiards
• billiard-table problem
• Billingsley, H.
• Billingsley, P.P.
• billion
• Bill picture
• Billy, J.de
• bilocal
• bilocalizing subcatagory
• bilogical
• Bilo, J.E.C.
• bimagic cube
• bimagic series
• bimagic square
• bimatrix
• bimatrix game
• bimaximum
• bimeasurable transformation
• bimeasure
• bimedian
• bimeromorphically equivalent
• bimeromorphic mapping
• bimodal
• bimodal distribution
• bimodal distribution function