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Urs Schreiber earned this badge 8 times
jan 11 at 16:47Is ghost-number a physical reality/observable?
may 4 '12 at 21:00Quantum Field Theory from a mathematical point of view
may 4 '12 at 21:00The Role of Rigor
may 4 '12 at 21:00Physical interpretation of different selfadjoint extensions
may 4 '12 at 21:00Can symmetry generators be used for quantization?
may 4 '12 at 21:00Kerr Geometry, Separability and Twistors
may 4 '12 at 21:00Geometric Langlands as a partially defined topological field theory
may 4 '12 at 20:55Sympletic structure of General Relativity