H. Lee

activity

20072026

^{*}

-homomorphisms between

C^{*}

-algebras II

2 citations · 6 across the 17 of their papers we have counts for

collaborators

Showing 2010 · math.OAShow all

2 papers · 2 filters

math.OA2010

Homotopy classification of projections in the corona algebra of a non-simple $C\sp *$-algebra

Lawrence G. Brown, Hyun Ho Lee

We study projections in the corona algebra of $C (X) \otimes K$ where $X = [0, 1], [0, \infty), (- \infty, \infty)$ , and $[0, 1] / {0, 1}$ . Using BDF's essential codimension, we determine con…

math.OA2010

Proper asymptotic unitary equivalence in $\KK$-theory and projection lifting from the corona algebra

Hyun Ho Lee

In this paper we generalize the notion of essential codimension of Brown, Douglas, and Fillmore using $\KK$-theory and prove a result which asserts that there is a unitary of the f…