http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
This work covers the maximal and prime ideals of the incidence algebra, derivations and isomorphisms, radicals and additional ring-theoretic properties. Combinatorial discussions include a study of the Mobius function, reduced incidence subalgebras, and the coalgebra approach to incidence algebras.
1. Incidence algebras -- 2. The Möbius function -- 3. Reduced incidence algebras -- 4. Radicals -- 5. Maximal ideals -- 6. Minimal prime ideals -- 7. Derivations and isomorphisms -- 8. Ring theoretic properties.
Eugene Spiegel, Christopher J. O'Donnell.
Monographs and textbooks in pure and applied mathematics ; 206