• Thumbnail for Poncelet's closure theorem
    In geometry, Poncelet's closure theorem, also known as Poncelet's porism, states that whenever a polygon is inscribed in one conic section and circumscribes...
    7 KB (859 words) - 21:22, 19 June 2025
  • Thumbnail for Jean-Victor Poncelet
    as Steiner constructions. In geometry, Poncelet's porism (sometimes referred to as Poncelet's closure theorem) states that whenever a polygon is inscribed...
    16 KB (1,602 words) - 22:59, 20 December 2024
  • Thumbnail for Poncelet–Steiner theorem
    Brianchon's theorem Ceva's theorem Desargues's theorem Menelaus's theorem Pascal's theorem Poncelet's closure theorem Ptolemy's theorem Apollonian circles...
    94 KB (13,156 words) - 20:50, 25 June 2025
  • Sonnier Poncelet Prize, a mathematics prize by the French Academy of Sciences Poncelet's closure theorem, mathematics Poncelet–Steiner theorem, mathematics...
    913 bytes (146 words) - 17:48, 22 November 2023
  • (Euclidean geometry) Poncelet's closure theorem (conics) Poncelet–Steiner theorem (geometry) Ptolemy's theorem (geometry) Pythagorean theorem (geometry) Reuschle's...
    78 KB (6,289 words) - 12:34, 6 June 2025
  • Thumbnail for Euler's theorem in geometry
    absolute geometry. Fuss' theorem for the relation among the same three variables in bicentric quadrilaterals Poncelet's closure theorem, showing that there...
    5 KB (552 words) - 19:16, 24 April 2025
  • independently by Leonhard Euler), which is a special case of Poncelet's closure theorem, as well as the Grace–Danielsson inequality in one dimension higher...
    6 KB (775 words) - 15:43, 4 January 2025
  • Finding Ellipses: What Blaschke Products, Poncelet’s Theorem, and the Numerical Range Know about Each Other is a mathematics book on "some surprising connections...
    6 KB (763 words) - 17:16, 27 December 2024
  • Thumbnail for Bicentric polygon
    to an n-gon. The fact that it will always do so is implied by Poncelet's closure theorem, which more generally applies for inscribed and circumscribed...
    8 KB (821 words) - 15:21, 19 November 2024
  • In geometry, the incenter–excenter lemma is the theorem that the line segment between the incenter and any excenter of a triangle, or between two excenters...
    10 KB (1,066 words) - 01:34, 12 September 2024
  • Thumbnail for Bicentric quadrilateral
    circumcircle. This is a special case of Poncelet's porism, which was proved by the French mathematician Jean-Victor Poncelet (1788–1867). Examples of bicentric...
    25 KB (3,823 words) - 01:31, 13 May 2025
  • Thumbnail for Henk J. M. Bos
    1007/BF02924855 1987: (with Kers, C.; Oort, F.; Raven, D. W.) "Poncelet's closure theorem", Exposition. Math. 5 no. 4, 289–364. Joseph Harris wrote for...
    7 KB (642 words) - 23:28, 26 June 2025
  • Thumbnail for Geometric Exercises in Paper Folding
    some of the major theorems of projective geometry including Desargues's theorem, Pascal's theorem, and Poncelet's closure theorem. Later chapters of...
    11 KB (1,306 words) - 19:47, 3 December 2024
  • Thumbnail for Pamela Gorkin
    2018). The book studies a connection between Blaschke products, Poncelet's closure theorem, and the numerical range of matrices. A Blaschke product is a...
    5 KB (463 words) - 18:03, 23 March 2024
  • the incircle and circumcircle. This is the triangular case of Poncelet's closure theorem, which applies more generally to polygons of any number of sides...
    8 KB (852 words) - 14:50, 15 October 2024
  • principle, the conservation of energy can be rigorously proven by Noether's theorem as a consequence of continuous time translation symmetry; that is, from...
    48 KB (6,279 words) - 20:29, 24 June 2025
  • is similar in spirit to the constructions underlying Desargues' theorem and Poncelet's porism. It echoes the rationale and construction underlying a conjecture...
    38 KB (6,298 words) - 04:20, 17 February 2025
  • number theory, which eventually led to Wiles's proof of Fermat's Last Theorem. Schemes elaborate the fundamental idea that an algebraic variety is best...
    44 KB (7,139 words) - 07:51, 25 June 2025