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math.OA2008
Some examples of lifting problems from quotient algebras
Hyun Ho Lee
We consider three lifting questions: Given a $C\sp{*}$-algebra , if there is a unital $C\sp{*}$-algebra contains as an ideal, is every unitary from lifted to a uni…
math.OA2007
Completely positive maps and extremal K-set
Hyun Ho Lee
We explain how to find the KK-theoretic counterpart of extremal K-set defined by Larry Brown and Gert Pedersen.