Plane congruences of the second order in space of four dimensions and fifth incidence theorems.

DOI10.1017/S0305004100010136zbMath58.0725.03OpenAlexW1967347452MaRDI QIDQ567681

W. G. Welchman

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/s0305004100010136

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