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- W3208166247 abstract "In this paper, we establish Galois theory for partial differential systems defined over formally real differential fields with a real closed field of constants and over formally $p$-adic differential fields with a $p$-adically closed field of constants. For an integrable partial differential system defined over such a field, we prove that there exists a formally real (resp. formally $p$-adic) Picard-Vessiot extension. Moreover, we obtain a uniqueness result for this Picard-Vessiot extension. We give an adequate definition of the Galois differential group and obtain a Galois fundamental theorem in this setting. We apply the obtained Galois correspondence to characterise formally real Liouvillian extensions of real partial differential fields with a real closed field of constants by means of split solvable linear algebraic groups. We present some examples of real dynamical systems and indicate some possibilities of further development of algebraic methods in real dynamical systems." @default.
- W3208166247 created "2021-11-08" @default.
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- W3208166247 date "2021-10-29" @default.
- W3208166247 modified "2023-09-30" @default.
- W3208166247 title "Real Liouvillian Extensions of Partial Differential Fields" @default.
- W3208166247 doi "https://doi.org/10.3842/sigma.2021.095" @default.
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