Any functor from the category of C*-algebras to the category of locales that assigns to each commutative C*-algebra its Gelfand spectrum must be trivial on algebras of nxn-matrices for n at least 3. The same obstruction applies to the Zariski, Stone, and Pierce spectra. The possibility of spectra in categories other than that of locales is briefly discussed
We consider problems arising from trying to lift the nonsynthesis spectrum of a closed set in a quot...
In the (covariant) topos approach to quantum theory by Heunen, Landsman and Spitters, one associates...
In the (covariant) topos approach to quantum theory by Heunen, Landsman and Spitters, one asso-ciate...
Any functor from the category of C*-algebras to the category of locales that assigns to each commuta...
Any functor from the category of C*-algebras to the category of locales that assigns to each commuta...
that assigns to each commutative C*-algebra its Gelfand spectrum must be trivial on algebras of n-by...
Abstract. This paper concerns contravariant functors from the category of rings to the category of s...
Abstract. We initiate a unified, axiomatic study of noncommutative algebras R whose prime spectra ar...
We investigate the possibility of constructing Kochen–Specker uncolorable sets of idempotent matrice...
There are two fundamental obstructions to representing noncommutative rings via sheaves. First, ther...
We investigate the possibility of constructing Kochen–Specker uncolorable sets of idempotent matrice...
Contains fulltext : 92422.pdf (publisher's version ) (Closed access) ...
There are two fundamental obstructions to representing noncommutative rings via sheaves. First, ther...
Spectral triples for nonunital algebras model locally compact spaces in noncommutative geometry. In ...
We consider problems arising from trying to lift the nonsynthesis spectrum of a closed set in a quot...
We consider problems arising from trying to lift the nonsynthesis spectrum of a closed set in a quot...
In the (covariant) topos approach to quantum theory by Heunen, Landsman and Spitters, one associates...
In the (covariant) topos approach to quantum theory by Heunen, Landsman and Spitters, one asso-ciate...
Any functor from the category of C*-algebras to the category of locales that assigns to each commuta...
Any functor from the category of C*-algebras to the category of locales that assigns to each commuta...
that assigns to each commutative C*-algebra its Gelfand spectrum must be trivial on algebras of n-by...
Abstract. This paper concerns contravariant functors from the category of rings to the category of s...
Abstract. We initiate a unified, axiomatic study of noncommutative algebras R whose prime spectra ar...
We investigate the possibility of constructing Kochen–Specker uncolorable sets of idempotent matrice...
There are two fundamental obstructions to representing noncommutative rings via sheaves. First, ther...
We investigate the possibility of constructing Kochen–Specker uncolorable sets of idempotent matrice...
Contains fulltext : 92422.pdf (publisher's version ) (Closed access) ...
There are two fundamental obstructions to representing noncommutative rings via sheaves. First, ther...
Spectral triples for nonunital algebras model locally compact spaces in noncommutative geometry. In ...
We consider problems arising from trying to lift the nonsynthesis spectrum of a closed set in a quot...
We consider problems arising from trying to lift the nonsynthesis spectrum of a closed set in a quot...
In the (covariant) topos approach to quantum theory by Heunen, Landsman and Spitters, one associates...
In the (covariant) topos approach to quantum theory by Heunen, Landsman and Spitters, one asso-ciate...
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