On the vector space of 0-configurations

Abstract

Let X = {xl . . . . . x,} be a finite set o f n elements. F o r an e lement A o f 2 x = = {F: Fc=X} we define the m o n o m i a l p ( A ) = 17 x , p ( 0 ) = l . x ~ A Set I / = V(2X)={ ~ ~(A)p(A): c~(A) is rat ional}, i.e. Vis the set o f a l l s q u a r e a~_x free po lynomia l s in the var iables xl . . . . , x, . O f course, V is a vector space o f d… (More)
DOI: 10.1007/BF02579430

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