Abstract
We deal with planar moduli spaces of polygonal linkages arising from a poristic family of bicentric polygons. For bicentric quadrilaterals, we describe the topological types of moduli spaces in poristic families and find the absolute maximum and minimum of oriented area in the union of moduli spaces. Similar results are obtained for poristic quadrilaterals associated with a pair of confocal ellipses. In conclusion we outline some research perspectives suggested by our results.
Similar content being viewed by others
References
M. Berger, Géométrie, Vol. 2, Nathan, Paris (1990).
A. Connes and D. Zagier, “A property of parallelograms inscribed in ellipses,” Am. Math. Mon., 114, No. 10, 909–914 (2007).
N. Fuss, “De quadrilateris quibus circulum tam inscribere quam circumscribere licet,” Nova Acta Acad. Sci. Petrop. 10, 103–125 (1797).
Z. Giorgadze, Geometric porisms and extremal problems, Diploma Thesis, Ilia State University (2013).
M. Kapovich and J. Millson, “On the moduli spaces of polygons in the Euclidean plane,” J. Differ. Geom., 42, No. 1, 133–164 (1995).
G. Khimshiashvili, “Cyclic polygons as critical points,” Proc. I. Vekua Inst. Appl. Math., 3, 73–78 (2008).
G. Khimshiashvili, “Extremal problems on configuration spaces,” Proc. A. Razmadze Math. Inst., 155, 73–77 (2011).
G. Khimshiashvili and G. Panina, “Cyclic polygons are critical points of area,” J. Math. Sci., 158, No. 6, 899–903 (2009).
G. Lion, “Variational aspects of Poncelet’s theorem,” Geom. Dedic., 52, 105–118 (1994).
V. Radić, “Some relations cocerning triangles and bicentric quadrilaterals in connection with Poncelet’s closure theorem,” Math. Maced., 1, 35–58 (2003).
Author information
Authors and Affiliations
Corresponding author
Additional information
Translated from Sovremennaya Matematika i Ee Prilozheniya (Contemporary Mathematics and Its Applications), Vol. Algebra and Topology, 91, 2014.
Rights and permissions
About this article
Cite this article
Khimshiashvili, G. Moduli Spaces of Bicentric Quadrilaterals. J Math Sci 211, 31–39 (2015). https://doi.org/10.1007/s10958-015-2600-5
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10958-015-2600-5