We introduce the algorithmic problem of determining whether the solution to a given linear differential equation has a zero or not (the Zero Problem). Somewhat surprisingly, this is a longstanding ...
eine Gleichung der Form \begin{eqnarray}F({x}_{1},{x}_{2},\ldots, {x}_{n},u,{u}_{{x}_{1}},\ldots, {u}_{{x}_{1}{x}_{1}},{u}_{{x}_{1}{x}_{1}},\ldots )=0,\end{eqnarray ...
Die Lösungen dieser Differentialgleichung notiert man abkürzend auch mit dem Symbol \begin{eqnarray} w = P \left\{ {\begin{array}{cccc} a & b & c & {} \\ \alpha ...
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