The split graph is given endomorphism images are retracts.给出了任意自同态像图都是收缩核的分裂图的结构.In this paper, split graphs with complete endomorphism - regularity are characterized explicitly.本文给出了具有完全正则自同态半群的分裂图的结构特征....
Coasianism adduces Coase Theorem in a wrong way.“科斯主义”是对“科斯定理”的错误引证.Results that sprung readily from a theorem is called by the Greeks corollaries or porisms.希腊人把那些能从定理直接推出的结果称作推论或系论.By the corollary to Theorem 4.3, the ...
他在建筑工地上当起了小工。He became a hod carrier on a building site.傍晚时分兜售各种花哨小工艺品的小贩常把街道阻塞.Toward evening peddlers selling various fancy goods would fill up the street.小摊儿上有很多小工艺品卖,价格不贵.There are many small and cheap articles in th...