Deformable transformations of Ribaucour
نویسندگان
چکیده
منابع مشابه
Deformations of Transformations of Ribaucour.
and is the tangent of F at x. Dually then, r and 1/k being the absolute points, the conic F the Feuerbach circle, and the conic R a rectangular hyperbola on the four given orthocentric points, and having its centre c on F, if the common diameter of F and R meet R at points dd', then these points are double foci of circular curves of class 3 on the 6 lines; the circles with centres d and d' and ...
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ژورنال
عنوان ژورنال: Transactions of the American Mathematical Society
سال: 1916
ISSN: 0002-9947
DOI: 10.1090/s0002-9947-1916-1501052-0