Proceedings of the American Mathematical Society

Author(s): Llolsten Kaonga
Journal: Proc. Amer. Math. Soc. 130 (2002), 33-38.
MSC (1991): Primary 05C38, 15A15; Secondary 05A15, 15A18
Posted: April 26, 2001
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We give a sufficient condition for a unital C*-algebra to have no nontrivial projections, and we apply this result to known examples and to free products. We also show how questions of existence of projections relate to the norm-connectedness of certain sets of operators.

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