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Showing 1 to 1 of 1 for “"Incidence algebras."”.
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Group automorphisms of incidence algebras.
… an arbitrary partially ordered set and I(P) its incidence space. Then FI(P) denotes the associated finitary incidence algebra, where FI(P) = I(P) for locally finite posets (P,≤). We investigate the group of units U(FI(P)) of incidence algebras and its normal subgroups. This includes the structure …