sanctus Posted March 11, 2005 Report Share Posted March 11, 2005 Just a curiosity: all the representations I encountered where applications from the group to a "the linear transformation of a vectorial space" (i.e automorphisms of a given space i.e. matrix representations). My question is simply if someone knows if other representations are used in physics (i.e automorphisms of spaces that aren't matrices (or tensors))? Hope I was clear....and thanks Link to comment Share on other sites More sharing options...
Bo Posted March 14, 2005 Report Share Posted March 14, 2005 the generator of the group of translations has as representation:P_m =i d/dx^mand generates the momentum. (of course this is still an operator that applies to some vector in a hilbert space) Bo Link to comment Share on other sites More sharing options...
sanctus Posted March 14, 2005 Author Report Share Posted March 14, 2005 thanks! now as I read it I think I saw it already somewhere .... Link to comment Share on other sites More sharing options...
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