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| rev | Bot | (Created page with "<div class="d-none"><math> \newcommand{\mathds}{\mathbb}</math></div>Develop a theory of projections, isometries and symmetries inside <math>B(H)</math>, notably by examining the validity of the formula <math display="block"> \lim_{n\to\infty}(PQ)^n=P\wedge Q </math> when talking about projections, and also by taking into account the fact that <math display="block"> UU^*=1\iff U^*U=1 </math> does not necessarily hold in infinite dimensions, when talking about isometries.") | Apr 20'25 at 1:30 | +477 |