Frattini Subalgebras and Nonimbedding Theorem of n-Lie Algebras

In this paper, we prove the nonimbedding theorem in nilpotent n-Lie algebras which is an analogue to the nonimbedding theorem of Burnsids in groups of prime power order. We also study the properties of Frattini subalgebras of n-Lie algebras over the field with characteristic zero, and prove that the Frattini subalgebra of any k-solvable （k ≥2） n-Lie algebra is zero.

n-Lie代数的Frattini理想及Φ-free

给出了Φ-freen-Lie代数的定义,研究了Φ-freen-Lie代数的性质,讨论了n-Lie代数、幂零n-Lie代数及具有幂零导子代数的n-Lie代数是Φ-free的充要条件.

Elementary n-Lie Algebras

In this paper, we mainly study some properties of elementary n-Lie algebras, and prove some necessary and sufficient conditions for elementary n-Lie algebras. We also give the relations between elementary n-algebras and E-algebras.

完备Lie代数的若干进展

近十年来，特别是近几年完备Ｌｉｅ代数的研究取得了许多进展，本文分以下六个方面介绍这一领域的研究状况．０）引言；１）完备Ｌｉｅ代数的分解和唯一性；２）一些完备Ｌｉｅ代数；３）可解完备Ｌｉｅ代数；４）完备Ｌｉｅ代数的极大环面子代数，Ｋｉｌｉｎｇ型及结构；５）一些公开问题．

具有交换幂零根基的可裂Lie代数

确定了具有交换幂零根基的可裂Ｌｉｅ代数的导子代数，作为推论给出了具有交换幂零根基的完备Ｌｉｅ代数的结构．证明了特征零代数闭域上有限维Ｌｉｅ代数的Ｆｒａｔｉｎｉ子代数为零的充分必要条件为它是具有交换幂零根基的可裂Ｌｉｅ代数．

一类非极大秩可解完备Lie代数

证明了给出一个Ｈｅｉｓｅｎｂｅｒｇ代数Ｈ，在同构的意义下存在且仅存在一个以Ｈ为幂零根基的可解完备Ｌｉｅ代数，我们给出了这类完备Ｌｉｅ代数的具体实现，并指出当ｄｉｍＨ＞３时，这类完备Ｌｉｅ代数是非极大秩可解完备Ｌｉｅ代数．

辛三代数的Frattini子代数

本文研究了辛三代数的Frattini子代数和基本辛三代数的问题.利用Frattini子代数和基本辛三代数的性质,得到了辛三代数的非嵌入定理,从而推广了李三系中关于Frattini子系的结果.

The Automorphism Groups of Complete Lie Algebras with Commutative Nilpotent Radical

The automorphism groups of finite-dimensional complete Lie algebras withcommutative nilpotent radical over complex field C are given.

Fratini子代数为零的Lie代数

证明了特征零代数闭域上的具有交换幂零根基的完备Ｌｉｅ代数的Ｆｒａｔｉｎｉ子代数为零。

n+1维n-Lie代数φ-free的讨论

对n+1维n-Lie代数关于φ-free的分类进行探讨,并给出相关实例.

Complete Lie algebras with maximal-rank nilpotent radicals

Ccmplete Lie algebras with maximal-rank nilpotent radicals are constructed by using the representation theory of complex semisimple Lie algebras. A structure theorem and an isomorphism theorem for this kind of complete Lie algebras are obtained. As an application of these theorems, the complete Lie algebras with abelian nilpotont radicals are classified. At last, it is proved that there exists no complete Lie algebra whose radical is a nilpotent Lie algebra with maximal rank.

COMPLETE LIE ALGEBRAS WITH l-STEP NILPOTENT RADICALS

The authors first give a necessary and sufficient condition for some solvable Lie algebras with l-step nilpotent radicals to be complete, and then construct a new class of infinite dimensional complete Lie algebras by using the modules of simple Lie algebras. The quotient algebras of this new constructed Lie algebras are non-solvable complete Lie algebras with l-step nilpotent radicals.

Maps Preserving Zero Lie Brackets on a Maximal Nilpotent Subalgebra of the Symplectic Algebra

Let F be a field with char F = 2, l a maximal nilpotent subalgebra of the symplectic algebra sp（2m,F）. In this paper, we characterize linear maps of l which preserve zero Lie brackets in both directions. It is shown that for m ≥ 4, a map φ of l preserves zero Lie brackets in both directions if and only if φ = ψcσT0λαφdηf, where ψc,σT0,λα,φd,ηf are the standard maps preserving zero Lie brackets in both directions.

The realization and structure of complete Lie algebras whose nilpotent radicals are Heisenberg algebras

The realization and structure of complete Lie algebras whose nilpotent radicals are Heisenberg algebras over the complex field C are given.

Engel Subalgebras of n-Lie Algebras

Engel subalgebras of finite-dimensional n-Lie algebras are shown to have similar properties to those of Lie algebras. Using these, it is shown that an n-Lie algebra, all of whose maximal subalgebras are ideals, is nilpotent. A primitive 2-soluble n-Lie algebra is shown to split over its minimal ideal, and all the complements to its minimal ideal are conjugate. A subalgebra is shown to be a Cartan subalgebra if and only if it is minimal Engel, provided that the field has sufficiently many elements. Cartan subalgebras are shown to have a property analogous to intravariance.

Completable nilpotent Lie algebra

THE theory of nilpotent Lie algebra is very important in the theory of finite-dimensional Lie al-gebras. Because of its extraordinary complexity, one usually studies various classes of specialnilpotent Lie algebras. In the study of complete Lie algebras, a class of special nilpotent Lie al-gebras (called completable nilpotent Lie algebras) was discovered. In this letter, we will

On Ad-Nilpotent b-Ideals for Orthogonal Lie Algebras

Krattenthaler, Orsina and Papi provided explicit formulas for the number of ad-nilpotent ideals with fixed class of nilpotence of a Borel subalgebra of a classical Lie algebra. Especially for types A and C they obtained refined results about these ideals with not only fixed class of nilpotence hut also fixed dimension. In this paper, we shall follow their algorithm to determine the enumeration of ad-nilpotent b-ideals with fixed class of nilpotence and dimension for orthogonal Lie algebras, i.e., types B and D.

李Color代数极大子代数的基本性质

主要把Frattini子代数的性质推广到李Color代数,得到了它们的若干性质,并利用其性质分别给出可解和幂零李Color代数的几个充分必要条件.

Jordan李代数的Engel定理及其应用

证明了有限维Jordan李代数的Engel定理,并应用它得到了Jordan李代数的Cartan子代数的若干性质.

一类可解李代数的结构

可解李代数与幂零李代数在李代数结构中起着非常重要的作用.任意一个李代数L,都具有一个极大的可解理想与幂零理想,分别称之为L的可解根基R(L)与幂零根基N(L).因此,在李代数的结构研究中,可解李代数与幂零李代数的结构研究是必不可少的.研究了一类具有Filiform幂零根基的可解李代数的结构,证明了此类可解李代数是完备李代数,并且给出每个导子的具体表达式.