Proving an operator is a projection operator

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Thread starter km707
Start date Mar 17, 2011
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Operator Projection

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km707

Thread starter
Mar 17, 2011

Hi, I'm having trouble proving that a particular operator is a projection operator. If you could take a look at the attached document, that contains my question I'd be really grateful!

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Meir Achuz

Science Advisor

Homework Helper

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Mar 17, 2011

The equation in the next to last line is the definition of the delta function.
Of course, you can use it.

Proving an operator is a projection operator

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Proving an operator is a projection operator

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