Ordinary Differential Equations

On the existence of a linear Pfaffian system with a disconnected lower characteristic set of positive measure

N. A. Izobov^a, A. S. Platonov<sup>b

a</sup> Institute of Mathematics of the National Academy of Sciences of Belarus
^b Belarusian State University, Minsk

UDC: 517.936

Received: 02.12.1997

 English version: Differential Equations, 1999, 35:1, 64–70

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