In this thesis, we present different equivalent ways of studying the Stokes phenomenon of the Airy equation. Since it has two entire solutions that can be written as a Fourier transform of an exponential function, in the first chapters we introduce the notions of enhanced sheaves and of their Fourier-Sato transform. For the Airy case this is a compact support first homology group of a specific region, that has as generators some cycles that we can explicitly find by basic Morse theory. In conclusion, these cycles give an isomorphism between the previous Fourier-Sato transform and a direct sum of exponential enhanced sheaves that correspond to the asymptotic behavior of the solutions of the Airy equation.
Airy equation: a topological approach of its stokes phenomenon
Volpato, Giada
2019/2020
Abstract
In this thesis, we present different equivalent ways of studying the Stokes phenomenon of the Airy equation. Since it has two entire solutions that can be written as a Fourier transform of an exponential function, in the first chapters we introduce the notions of enhanced sheaves and of their Fourier-Sato transform. For the Airy case this is a compact support first homology group of a specific region, that has as generators some cycles that we can explicitly find by basic Morse theory. In conclusion, these cycles give an isomorphism between the previous Fourier-Sato transform and a direct sum of exponential enhanced sheaves that correspond to the asymptotic behavior of the solutions of the Airy equation.File | Dimensione | Formato | |
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https://hdl.handle.net/20.500.12608/27431