管范畴中的模同态与模分解

本讨论管范畴（ｔｕｂｅ）中的模同态。在不可分解模上定义特殊生成元，并运用它研究了管范畴中模同态的一些性质，得到了关于同态ｆ：Ｍｈ，ｌ→Ｌ的导出的模Ｌ的直和分解及其余核的构造。  

Tube中的模同态与模分解

本文讨论管（tube)范畴中的模同态，在不可分解模上运用[4]中特殊生成元的定义，进一步研究了管范畴中模同态的一些性质，得到了关于同态g:L→Mh,l的导出模L的直和分解及其核的构造。  

本原环的秩等于1的幂等元的分类及其应用

本文提出了含非零基座本原环的全体秩等于１的幂等元的两种分类，据此进一步提示了此类本原环的结构。  

On Graded Distributive Modules

ＯｎＧｒａｄｅｄＤｉｓｔｒｉｂｕｔｉｖｅＭｏｄｕｌｅｓ￥ＣｈｅｎＱｉｎｇｈｕａ（陈清华）（ＤｅｐａｒｔｍｅｎｔｏｆＭａｔｈｅｍａｔｉｃｓ，ＦｕｊｉａｎＮｏｒｍａｌＵｎｉｖｅｒｓｉｔｙ，Ｆｕｚｈｏｕ，３５０００７）Ａｂｓｔｒａｃｔ：Ｉｎｔｈｉｓｐａｐｅ...  

群分次环与群分次模的基座

将关于交叉积的基座的主要结果推广到了群分次环上，得到了群分次环的基座的一些具体刻划，特别地，证明了对有限群G和强G－分次环R，有Soc(RR) Soc(ReRe)R soc^ ｜G｜（RR）。  

Maschke定理的一点应用

给出了Maschke定理的两种无限变体,并应用于带子群极小条件的Abel群,深化了Berkovich的有关结果．  

Adjugates in Banach algebras

A simple formula for the adjugate of a block triangle offers an alternative route to the determinant theory for Banach algebras.

  

On tensor products of -very ample line bundles

In this paper, we show that the tensor product of -very ample and -very ample line bundles on a complete algebraic variety is -very ample.

  

The Jordan socle and finitary Lie algebras

In this paper we introduce the notion of Jordan socle for nondegenerate Lie algebras, which extends the definition of socle given in [A. Fernández López et al., 3-Graded Lie algebras with Jordan finiteness conditions, Comm. Algebra, in press] for 3-graded Lie algebras. Any nondegenerate Lie algebra with essential Jordan socle is an essential subdirect product of strongly prime ones having nonzero Jordan socle. These last algebras are described, up to exceptional cases, in terms of simple Lie algebras of finite rank operators and their algebras of derivations. When working with Lie algebras which are infinite dimensional over an algebraically closed field of characteristic 0, the exceptions disappear and the algebras of derivations are computed.  

Spectrum preserving linear mappings for scattered Jordan-Banach algebras

Given two semisimple complex Jordan-Banach algebras with identity and , we say that is a spectrum preserving linear mapping from to if is surjective and we have , for all . We prove that if is a scattered Jordan-Banach algebra, then is a Jordan isomorphism.