1) separable extensions
分离扩张
1.
The separable extensions and representation type of algebras are investgated.
研究了代数的分离扩张和表示型;证明了:如果A和B是Artinian代数且 B/A是双分离扩张,则A是极小无限表示型的当且仅当B是极小无限表示型的。
2) fractal dilatation
分形扩张
1.
The author applies the theory of complexity to studying the famous “five-storeyed type” morphological vertical zonality of the vein-type tungsten ore deposits in southern Jiangxi Province and obtains the following results:(1) The “five-storeyed type” morphological vertical zonality of the vein-type tungsten ore deposits is the consequence of “fractal dilatation of multiple hydraulic fracturing”.
(1 )赣南脉钨矿床的“五层楼”式形态垂直分带是“多重水力断裂分形扩张”的结果。
3) Fractional Expand
分式扩张
1.
In this paper we obtain the fractional expand of the given lattice for its power lattice by means of the construction the rational number from the integers,relation between quotient lattice and this fractional expand is established.
借助整数构造有理数的方法获得了一个格关于其幂格的分式扩张,建立了这种分式扩张与商格的联系。
4) Spitting extension
分裂扩张
5) Ramified extension
分歧扩张
6) differential extension
微分扩张
补充资料:极大扩张和极小扩张
极大扩张和极小扩张
maximal and minimal extensions
极大扩张和极小扩张匡.习的司出目.公油抽lex妇心.旧;MaKcl.Ma刀‘.oe H Mll.”M田.妇oe PaC山一Pe皿朋] 一个对称算子(s笋nr贺苗c opemtor)A的极大扩张和极小扩张分别是算子牙(A的闭包,(见闭算子(cfo“月。详mtor”)和A’(A的伴随,见伴随算子(呐。int opera.tor)).A的所有闭对称扩张都出现在它们之间.极大扩张和极小扩张相等等价于A的自伴性(见自伴算子(义休.adjoint operator)),并且是自伴扩张唯一性的必要和充分条件.A.H.J’Ior朋oB,B.c.lll户、MaR撰
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