l-群的极大下子群

在非正规值的条件下,给出l-群极大下子群的唯一表达形式,由此推广[1]中的一个结果.与此同时,建立了正规值l-群,特殊值l-群及有限值l-群之间等价的一个充要条件.     

Prime spectra of non-commutative generalizations of MV-algebras

Non-commutative generalizations of MV-algebras were introduced by G. Georgescu and A. Iorgulesco as well as by the author; the generalizations are equivalent and are called GMV-algebras. We show that GMV-algebras can be considered as special cases of Grishin algebras. As MV-algebras are algebraic models of the Łukasiewicz logic and Grishin algebras have the analogous role for the classical bilinear logic, GMV-algebras correspond to a non-commutative logic between the above logics. Further, by A. Dvurečenskij, any GMV-algebra is isomorphic to an interval of an l-group, which in general is not commutative. This generalizes D. Mundici's representation of MV-algebras by means of intervals of abelian l-groups. In the paper (using this representation) we describe the properties of prime ideal spectra of GMV-algebras and of their factor algebras and ideals and prove that the spectrum of closed ideals of any GMV-algebra is homeomorphic to that of a completely distributive GMV-algebra. Received January 4, 2001; accepted in final form May 2, 2002.     

l-群的极小素子群

本文研究l-群的极小素子群,主要证明如下结果:设G是一个l-群.（1）N∈Γ_m（G）,则N=a^⊥当且仅当{P_N^C}是一个归纳集;（2）g∈G⁺,如果g是特殊的,且g的唯一值是原子,则g^⊥∈Γ_m（G）;（3）G∈B_w,Γ₁（C）是原子的当且仅当Γ_m(G）?Γ₁（G）。     

Free Weakly Hamilitonian Lattice-Ordered Groups

ＦｒｅｅＷｅａｋｌｙＨａｍｉｌｉｔｏｎｉａｎＬａｔｔｉｃｅ－ＯｒｄｅｒｅｄＧｒｏｕｐｓ￥ＴｏｎｇＤａｏｒｏｎｇ（仝道荣）（ＤｅｐａｒｔｍｅｎｔｏｆＭａｔｈｅｍａｔｉｃｓ，ＨｅｈａｉＵｎｉｖｅｒｓｉｔｙ．Ｎａｎｉｊｎｇ，２１００２４）Ａｂｓｔｒａｃｔ：...     

具有唯一Pierece同态的l-群

Pierece证明了对于任意一个具有最小元0的分配格L,存在一个格态f:L→L满足:(1)Kerf=0;(2)f(a)=f(b)当且仅当a⊥=b⊥,这里a,b∈L,且对于x∈L,x⊥={y∈L:y∧x=0}。我们称这样的格同态为Pierece同态。本文我们将证明:如果G是一个Archimedeanl-群,则G+只有唯一的Pierece同态。     

Conrad有限基定理的一个新的刻画

本文的主要目的是通过使用大凸e-子群来建立Conrad有限基定理的一个新的刻画.     

关于格序群的基

本文得到以下主要结果:（1）G是l群,A,B∈P（G）\{（0）},且A∨B=G或A与B可比较,则A=A1’,其中A1是0-群.（2）G是l群,则Γ（G）满足DCC（ACC）当且仅当Γm（G）满足DCC（ACC）（3）l群G Bw,则G有基当且仅当∩△Gg=0。（4）若特殊值l群G∈D,则G有一小元素基     

弱奇异l-群的结构

引入弱奇异元及弱奇异l-群的概念，通过建立弱奇异元及弱奇异l-群的刻划，研究了一般弱奇异l-群的性质及相关的结构，部分地改进了有关奇异l-群已有的结果．