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QUANTITATIVE FINANCE RESEARCH CENTRE

4 Citations2006
K. Lennox
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Abstract

We obtain fundamental solutions for PDEs of the form ut = σx uxx + f(x)ux −μxru by showing that if the symmetry group of the PDE is nontrivial, it contains a standard integral transform of the fundamental solution. We show that in this case, the problem of finding a fundamental solution can be reduced to inverting a Laplace transform or some other classical transform.