Timeline for How to show the invariant nature of some value by the group theory representations?
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| Mar 23, 2014 at 19:04 | comment | added | Andrew McAddams | My question was following: "...I mean that if $\Psi \bar {\Psi}$ refers to the direct product, what group operation corresponds to $\bar {\Psi}\Psi$?..". So I want to get some group operation (like direct product) which show me that $\bar {\Psi} \Psi \equiv (0, 0)$. Not by the language of transformation matrices. Excuse me for my unintelligible explanation. | |
| Mar 23, 2014 at 18:59 | history | answered | Frederic Brünner | CC BY-SA 3.0 |