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Subjects
15-XX Linear and multilinear algebra; matrix theory
15Axx Basic linear algebra
15A30 Algebraic systems of matrices

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Relationship of certain rings of infinite matrices over integers

Mario Petrich, Pedro V. Silva (2000)

Bollettino dell'Unione Matematica Italiana

Sia $N$ l'insieme degli interi non negativi e $Z$ l'anello degli interi. Sia $A$ l'anello delle matrici $N \times N$ su $Z$ che hanno solo un numero finito di cifre non nulle in ogni linea ed in ogni colonna. Sia $B$ il sottoanello generato da $X$ e $Y$ , dove $X$ (rispettivamente $Y$ ) è ottenuto dalla matrice identità muovendo gli 1 una posizione a destra (rispettivamente in giù). Sia pure $C$ il sottoanello di $A$ generato da $1 - X$ e $1 - Y$ . Infine sia $F$ il sottoanello delle matrici di $A$ che hanno solo un numero finito di cifre non nulle....

Representations of semigroups of idempotents

Walter S. Sizer (1980)

Czechoslovak Mathematical Journal

Currently displaying 1 – 2 of 2

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