Sur les conditions de validite d'une classe de rélations entre les expressions différentielles linéaires

DOI10.1007/BF02565644zbMath0027.39902MaRDI QIDQ2647353

Alexander Ostrowski

Publication date: 1943

Published in: Commentarii Mathematici Helvetici (Search for Journal in Brave)

Full work available at URL: https://eudml.org/doc/138810

zbMATH Keywords

Partial differential equations

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