Abstract
Wax compression and honeycomb resistance, and some other hypothesis as well (elimination of empty spaces between cylindrical cells and approximate emulation of bees bodies) drive to the first optimization problem: among all polygons with n ≥ 3 sides circumscribed into a circle with a given radius, determine the polygon P ∗ n with the smallest perimeter. This extrema problem with an isogonal condition is solved with a Lagrange multipliers method. It is proven that P ∗ n is a regular polygon and n ∈ {3, 4, 6}. Finally, another minimum problem drives to n = 6.
References
Carruccio, E. (1936) “Notizie storiche sulla geometría delle api”, Periódico di Matematiche 16(4): 35–54.
lonescu, I. (1955) Maxime si Minime Geometrice, 2a Ed. Editura Tehnica, Bucuresti.
Kepler, J. (1611) Sirena seu de Nive sexángula (En latín). Godefrindum Tambach. Erancofurti ad Moenum. (Ver: Kepler: Opera Ominia, Vol. VII, pag. 715–730. Ed. Ch. Frisen, Heyder fe Zimmer, Frankfurt a. M. fe Eriangen, 1868).
Máraldi, G.F. (1712) “Observations sur les abeilles”, Mémoires de l’Académie Royale des Sciences, París: 299–335.
Muntean, I. “Problema lui Réaumur privind constructia optimalá a fagurilor de albina” preprint.
Nemytskii, V.V. et alii. (1957) Lect¸ii de Analiza Matematica, Vol. II, 2a Ed. (1a rusa). Gos. Izdat. Tekhniko-Teoret. Lit., Mosc´u.
Nicolescu, M. et alii. (1980) Analiza Matematica. Vol. I, 5a Ed. Ed. Did´actica si Pedagógica, Bucuresti.
Pappus de Alejandría (1933) La Collection Mathématique. Éd. Desdée de Brouwer et Cie., Paris et Bruges.
Pinch, E.R. (1993) Optimal Control and Calculus of Variations. Oxford University Press, Oxford.
Posea, N.; Anghel, Al.; Manea, C.; Hotea, Gh. (1986) Rezistenta Materialelor. Probleme. Ed. Stiintific si Enciclopedic, Bucuresti.
Steinmetz, H. (1930) “Bemerkungen zu: Johannes Kepler, Strena seu de nive sexangula”, in: K. Stöckl (Ed.) Kepler-Festschrift, Johannes Kepler, der
kaiserliche Mathematiker, Vol. 1 Bericht des Naturwissenschaftlicher Verein, Regensburg: 257–263.
Togliatti, E.G. (1938) “Massimi e minimi”, in: Enciclopedia delle matematiche elementari, Vol. II, Hoepli, Milano: 1–71.
Vogt. H. (1911) Geometrie und Ökonomie der Bienenzelle. Trewendt Granier, Bres.
Volcinschi, T. (1988) Ceara. Redactia de Propaganda Tehnica Agricola, Bucuresti.
Willem, V. (1928, 1930) “L’architecture des abeilles”, Académie Royale de Belgique, Bulletin de la Classe des Sciences 14(5) (1928), 672–705; 16 (1930): 893–906.
Periódico Adevárui de Bucuresti, 20 mai 1995