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Kostya earned this badge 6 times
apr 4 at 9:55“Velvet way” to Grassmann numbers
dec 30 at 14:19Why correlation functions?
jul 13 at 15:26Home-made lattice calculation?
jul 10 '11 at 6:50Does a photon interfere only with itself?
jun 24 '11 at 16:36Basic mechanics problems, unsolvable by brute-force numerical integration
jan 13 '11 at 15:36How fast a (relatively) small black hole will consume the Earth?