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hep-th2002★ 5 cited
A simple mechanical analog of the field theory of tachyon matter
Sayan Kar
In this brief note we show that the zero dimensional version of the field theory of tachyon matter proposed by Sen, provides an action integral formulation for the motion of a part…
hep-th1996
Generalised Raychaudhuri Equations for Strings and Membranes
Sayan Kar
A recent generalisation of the Raychaudhuri equations for timelike geodesic congruences to families of dimensional extremal, timelike, Nambu--Goto surfaces embedded in an d…