作者: Joris van der Hoeven , John Shackell
DOI: 10.1016/J.JSC.2006.06.001
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摘要: Abstract In this paper, we analyze the complexity of a zero-test for expressions built from formal power series solutions first order differential equations with non-degenerate initial conditions. We will prove doubly exponential bound. This bound establishes analogue “witness conjectures”.