Irregular differential systems of order two and the related expansion problems.
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Publication:5907939
DOI10.2307/1989277zbMath53.0429.01OpenAlexW4230100213MaRDI QIDQ5907939
No author found.
Publication date: 1927
Published in: Transactions of the American Mathematical Society (Search for Journal in Brave)
Full work available at URL: https://doi.org/10.2307/1989277
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