Triangle contractive self maps of the plane
D. Daykin (1978)
Fundamenta Mathematicae
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Displaying similar documents to “Triangle contractive self maps of a Hilbert space”
Triangle contractive self maps of the plane
Fixtures for triangle contractive self maps
B. Rhoades (1978)
Fundamenta Mathematicae
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Area contractions in the plane
Tudor Zamfirescu (1971)
Rendiconti del Seminario Matematico della Università di Padova
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The "Corolarium II" to the proposition XXIII of Saccheri's .
Albert Dou (1992)
Publicacions Matemàtiques
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This "Corolarium" of the (1733) contains an original proof of propositions 1.27 and 1.28 of Euclide's . In the same corollary Saccheri explains why he dispenses "not only with the propositions 1.27 and 1.28, but also with the very propositions 1.16 and 1.17, except when it is clearly dealt with a triangle circumscribed by alls sides"; and also why he rejects Euclide's proof. Moreover the corollarium has implications for confirmation of Saccheri's method; and also for his concept of...
The Cayley-Spottiswoode coordinates of a conic in 3-space
H. S. Ruse (1935)
Compositio Mathematica
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On the order of the points of the n - dimensional Euclidean space
F. Previale (1962)
Fundamenta Mathematicae
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Plane sets with intersections of prescribed power
D. J. White (1968)
Fundamenta Mathematicae
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Near hexagons with four points on a line.
De Bruyn, Bart (2001)
Advances in Geometry
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On compact one-to-one continuous images of the real line
Anatole Beck, Jonathan Lewin, Mirit Lewin (1971)
Colloquium Mathematicae
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The envelope of the Wallace-Simpson lines of a triangle. A simple proof of the Steiner problem on the deltoid.
Miguel de Guzmán (2001)
RACSAM
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A simple proof is presented of a famous, and difficult, theorem by Jakob Steiner. By means of a straightforward transformation of the triangle, the proof of the theorem is reduced to the case of the equilateral triangle. Several relations of the Steiner deltoid with the Feuerbach circle and the Morley triangle appear then as obvious.