MathDB

10

Part of 1975 Miklós Schweitzer

Problems(1)

Miklos Schweitzer 1975_10

Source: idempotent linear operator of a Hilbert space (an easy one, I think)

12/30/2008
Prove that an idempotent linear operator of a Hilbert space is self-adjoint if and only if it has norm 0 0 or 1 1. J. Szucs
Functional Analysislinear algebralinear algebra unsolved