Invariants and differential Galois groups in degree four
Banach Center Publications, Tome 58 (2002) no. 1, p. 79.

Voir la notice de l'article dans European Digital Mathematics Library

This note extends the algorithm of [hess] for computing unimodular Galois groups of irreducible differential equations of order four. The main tool is invariant theory.
Classification : 12H99, 12F10
Mots-clés : differential Galois group, differential equation of order four 
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     author = {Julia Hartmann},
     title = {Invariants and differential {Galois} groups in degree four},
     journal = {Banach Center Publications},
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     year = {2002},
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     language = {en},
     url = {https://geodesic-test.mathdoc.fr/item/BCP_2002__58_1_282214/}
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Julia Hartmann. Invariants and differential Galois groups in degree four. Banach Center Publications, Tome 58 (2002) no. 1, p. 79. https://geodesic-test.mathdoc.fr/item/BCP_2002__58_1_282214/