| On the Constructive Inverse Problem in Differential Galois Theory (2004) | |||||||||
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| We give sufficient conditions for a linear differential equation to have a given semisimple group as its Galois group. For any linear algebraic group G given as a semidirect product of a finite subgroup and a normal subgroup that is a product of groups of type An, Cn, Dn, E6, or E7, we construct a differential equation over C(x) having Galois group G.. Comment: Several misprints have been corrected and the statement of Propositions 3.2 and 3.4 have been made more precise and their proofs expanded | |||||||||
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