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Operator system structures on the unital direct sum of C*-algebras
Operator system structures direct sum of C*-algebras
2010/11/11
This work is motivated by R\u{a}dulescu's result on the comparison of C*-tensor norms on C*(F_n)\otimes C*(F_n).
For unital C*-algebras A and B, there are natural inclusions of A and B into the unit...
Mathematical Structures Defined by Identities II
Mathematical Structures Defined Identities II
2010/11/30
In our paper arXiv: math.RA/0110333 v1 Oct 2001 we showed that the number of algebras defined by a binary operation satisfying a formally irreducible identity between two n-iterates is O
e−n/16...
A correspondence between various Pin-type structures on a compact surface and quadratic (Iinear) forms on its homology is constructed. Sum of structures is defined and expressed in terms of these quad...