Transactions of the American Mathematical Society · 1977 · 25 citations · 7 references
Natural SciencesMathematicsDifferential EquationsExistence TheoryOperator TheoryPartial Differential EquationsSystems Of Differential Equations
We study the solutions of ordinary linear differential equations whose coefficients are analytic elements. As one application we show nonexistence of index for certain linear differential operators with rational function coefficients.
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Zeros of polynomials over local fields—The Galois action
James Ax · Journal of Algebra · 1970 · 74 citations
OnP-adic differential equations
Bernard Dwork · Inventiones mathematicae · 1973 · 32 citations