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It was seen that the surface [1122] becomes the surface [114] when the two double spheres become consecutive, in a similar manner the surface [222] becomes [24] when two of the double spheres become consecutive. Thus the surface [6] has three consecutive...

Classification of the Surfaces of Singularities of the Quadratic Spherical ... - Page 273
by Clarence Lemuel Elisha Moore - 1903 - 279 pages
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American Journal of Mathematics, Volume 27

Electronic journals - 1905 - 434 pages

...Eleventh Canonical Form. [6] 3-3X4 = 0 , x\ = 0, 4jfjci J' + ag f — 2 faa-, + gjjgg - « _iL_4j 7 ' ' It was seen that the surface [1122] becomes the surface...be generated in one (special way as the envelope of oo2 spheres. The minimum line enveloped by aj = a;3 = x3 = 0 is a part of the surface. The Laguerre...

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