Forum Geometricorum
Volume 6 (2006)
- Khoa Lu Nguyen and Juan
Carlos Salazar, On the mixtilinear incircles and excircles,
1--16.
- Juan Rodriguez,
Paula Manuel, and Paulo Semiao, A conic associated with Euler
lines, 17--23.
- Charles Thas, A note
on the Droz-Farny theorem, 25--28.
- Paris Pamfilos, The cyclic
complex of a cyclic quadrilateral, 29--46.
- Bernard Gibert, Isocubics
with concurrent normals, 47--52.
- Mowaffaq Hajja and
Margarita Spirova, A characterization
of the centroid using June Lester's shape function, 53--55.
- Christopher J. Bradley
and Geoff C. Smith, The locations of triangle centers, 57--70.
- Christopher J. Bradley
and Geoff C. Smith, The locations of the Brocard points, 71--77.
- Floor
van Lamoen, Archimedean adventures, 79--96.
- Anne Fontaine and Susan Hurley, Proof
by picture: products and reciprocals of diagonal length ratios
in the regular polygon, 97--101.
- Hiroshi Okumura and Masayuki Watanabe,
A generalization of Power's Archimedean circles, 103--105.
- Stanley
Rabinowitz, Pseudo-incircles, 107--115.
- Wilson
Stothers, Grassmann cubics and desmic structures, 117--138.
- Matthew
Hudelson, Concurrent medians of (2n+1)-gons, 139--147.
- Dieter
Ruoff, On the generating motions and the convexity of a
well-known curve in hyperbolic geometry, 149--166
- Mowaffaq
Hajja, A very short and simple proof of ``the most
elementary theorem" of euclidean geometry, 167--169
- Sandor
Kiss, The orthic-of-intouch and intouch-of-orthic triangles,
171--177.
- Kurt
Hofstetter, A 4-step construction of the golden ratio,
179--180.
- Eisso
J. Atzema, A theorem by Giusto Bellavitis on a class of quadrilaterals,
181--185.
- Wladimir
G. Boskoff and Bogdan D. Suceava, A projectivity characterized
by the Pythagorean relation, 187--190.
- Bogdan
D. Suceava and Paul Yiu, The Feuerbach point and Euler lines,
191 -- 197.
- Eric Danneels,
A simple perspectivity, 199--203.
- Quang Tuan
Bui, Pedals on circumradii and the Jerabek center, 205--212.
- Bernard Gibert,
The Simmons conics, 213--224.
- Nikolaos Dergiades,
A synthetic proof and generalization of Bellavitis' theorem, 225--227.
- Huub van Kempen,
On some theorems of Poncelet and Carnot, 229--234.
- Charles Thas,
The Droz-Farny theorem and related topics, 235--240.
- Zvonko Cerin,
On butterflies inscribed in a quadrilateral, 241--246.
- Eric Danneels,
On triangles with vertices on the angle bisectors, 247--253.
- Matthew Hudelson,
Formulas among diagonals in the regular polygon and the Catalan
numbers, 255--262.
- Khoa Lu Nguyen, A
note on the barycentric square roots of Kiepert perspectors, 263--268.
- Clark Kimberling,
Translated triangles perspective to a reference triangle, 269--284.
- James L. Parish, On
the derivative of a vertex polynomial, 285--288.
- Alexei Myakishev, On
two remarkable lines related to a quadrilateral, 289--295.
- Max A. Tran, Intersecting
circles and their inner tangent circle, 297--300.
- K. R. S. Sastry, Two Brahmagupta
problems, 301--310.
- Floor van Lamoen, Square
wreaths around hexagons, 311--325.
- Jean-Pierre Ehrmann, Some
geometric constructions, 327--334.
- Amy Bell, Hansen's right triangle
theorem, its converse and a generalization, 335--342.
- Paul Yiu, Some constructions
related to the Kiepert hyperbola, 343--357.
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