The tangent planes to a degenerate surface.

DOI10.1017/S0305004100010471zbMath58.0706.04OpenAlexW2171571012MaRDI QIDQ567596

Leonhard Roth

Publication date: 1932

Published in: Proceedings of the Cambridge Philosophical Society (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1017/s0305004100010471

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