Abstract
The Kolmogorov operator is a quadratic differential operator which gives a typical example of a degenerate and hypoelliptic operator. The purpose of this note is to remark that the explicit expression for the transition probability density of the diffusion process generated by the Kolmogorov operator may be regarded as the Van Vleck formula. In fact, we show that it is given by the critical value of the action integral in some adequate path space.
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Acknowledgements
This work is partially supported by Grants-in-Aid for Scientific Research (C) No.26400144 of Japan Society for the Promotion of Science (JSPS).
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Ikeda, N., Matsumoto, H. (2015). The Kolmogorov Operator and Classical Mechanics. In: Donati-Martin, C., Lejay, A., Rouault, A. (eds) In Memoriam Marc Yor - Séminaire de Probabilités XLVII. Lecture Notes in Mathematics(), vol 2137. Springer, Cham. https://doi.org/10.1007/978-3-319-18585-9_21
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DOI: https://doi.org/10.1007/978-3-319-18585-9_21
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