摘要
W irst Introduce the concept oftrames.Definition We call txne(2,2)alsebr洲;+;·)a w。e If B Is elldowed with an uPP。rsc。lllattlce order‘”<”“satlsfyingthe Nil。
出处
《数学进展》
CSCD
北大核心
2002年第3期290-292,共3页
Advances in Mathematics(China)
基金
The research of this paper is supported by NSFC (No. 10071068), Yunnan Applied Fundamental ResearchFoundation (No. 96a001z) and UGC(HK) (No. 2160126).