Re: adjoint of compact operator



In article <1193521500.337556.157280@xxxxxxxxxxxxxxxxxxxxxxxxxxx>,
novis <standshik@xxxxxxxxx> wrote:

If A is a compact operator on a Hilbertspace H then what can be said
about A*? Is it a compact or a bounded operator? thanks


If A is compact and bounded, then so is A*.

--
G. A. Edgar http://www.math.ohio-state.edu/~edgar/
.