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Rubio cubics and generalized Cundy–Parry mappings

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Abstract

Rubio’s mappings between the Thomson and Darboux cubics are generalized for pairs of cubics of the form p α(β 2γ 2)+ q β(γ 2α 2)+ r γ(α 2β 2) = 0, where p, r, q, α, β, γ are functions of a triple (a, b, c) of variables or indeterminates. Methods include symbolic substitutions, such as (a, b, c) → (bc, ca, ab). Connections between the generalized Rubio mappings with generalized Cundy–Parry mappings are described.

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References

  1. Coxeter H.S.M.: Some applications of trilinear coordinates. Linear Algebra Appl. 226(8), 375–388 (1995)

    Article  MathSciNet  Google Scholar 

  2. Cundy H.M., Parry C.F.: Some cubic curves associated with a triangle. J. Geom. 53, 41–66 (1995)

    Article  MATH  MathSciNet  Google Scholar 

  3. Cundy H.M., Parry C.F.: Geometrical properties of some Euler and circular cubics—part 1. J. Geom. 53, 72–103 (1999)

    Article  MathSciNet  Google Scholar 

  4. Gibert, B.: Cubics in the triangle plane. http://pagesperso-orange.fr/bernard.gibert/index.html

  5. Gibert, B.: Special isocubics in the triangle plane. http://pagesperso-orange.fr/bernard.gibert/files/isocubics.html

  6. Gibert, B.: Cundy–Parry cubics. http://pagesperso-orange.fr/bernard.gibert/Classes/c1037.html

  7. Kimberling C.: Bicentric pairs of points and related triangle centers. Forum Geom. 3, 35–47 (2003)

    MathSciNet  Google Scholar 

  8. Kimberling C., Lamoen F.v.: Central triangles. Nieuw Arch. Wiskd. 17, 1–19 (1999)

    MATH  Google Scholar 

  9. Kimberling C.: Cubics associated with triangles of equal areas. Forum Geom. 1, 161–171 (2001)

    MATH  MathSciNet  Google Scholar 

  10. Kimberling, C.: Triangle centers and central triangles. Congr. Numer. 129, i–xxv, 1–295 (1998)

  11. Kimberling, C.: Encyclopedia of Triangle Centers—ETC. http://faculty.evansville.edu/ck6/encyclopedia/ETC.html

  12. Kimberling C.: Symbolic substitutions in the transfigured plane of a triangle. Aequationes Math. 73, 156–171 (2007)

    Article  MATH  MathSciNet  Google Scholar 

  13. Roberts S.: King of Infinite Space: Donald Coxeter, The Man Who Saved Geometry. Walker/Bloomsbury, New York (2006)

    MATH  Google Scholar 

  14. Rubio P.: Analagmatic cubics through quadratic involutive transformations (1). J. Geom. 48, 184–205 (1993)

    Article  MATH  MathSciNet  Google Scholar 

  15. Weisstein, E.: MathWorld. http://mathworld.wolfram.com

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Correspondence to Clark Kimberling.

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Kimberling, C. Rubio cubics and generalized Cundy–Parry mappings. J. Geom. 96, 93–110 (2009). https://doi.org/10.1007/s00022-010-0025-3

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  • DOI: https://doi.org/10.1007/s00022-010-0025-3

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