a Third workshop on Nonlinear PDEs and Financial Mathematics
BTU
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V. Myrnyy

Analytical properties of some types of solutions to nonlinear models in Financial Mathematics

L. A. Bordag

Abstract
We study uniqueness problems and properties of families of solutions to option pricing models that appeared last decade on the field of Financial Mathematics. Different approaches - the Lie point transformation method and the perturbation method will illuminate the posed problem from different points of view. Invariant solutions obtained for some of models with help of a nontrivial Lie symmetry group and first results by using of the perburbative method for the same models shows that the connection between these two types of solutions is nontrivial, and uniqueness of solutions can not be guaranteed for any set of admissible parameters.