Malfattijev problem

Šašo, Mateja (2015) Malfattijev problem. Diploma thesis, Faculty of Science > Department of Mathematics.

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Abstract

In this diploma thesis we exhibit the main results related to the classical Malfatti’s problem (1803.) of cutting out three cylinders with maximal total volume out of a triangular prism. This stereometric riddle can obviously be reduced to the planimetric problem of placing three circles inside a given triangle so that they cover the largest possible area. Malfatti’s conjecture that the optimal arrangement is achieved for three circles such that each one is tangent to the other two and to two sides of the triangle turned out to be wrong. However, this assumption initiated various constructions of such a configuration of circles, as well as calculations of their position using algebraic and geometric methods. The problem of maximizing the area proved to be very hard and the complete solution was accomplished in the late 20th century. The result shows that a greedy algorithm always yields the optimal arrangement of circles, with the corresponding area larger than the one obtained by the Malfatti’s configuration.

Item Type: Thesis (Diploma thesis)
Supervisor: Šiftar, Juraj
Date: 2015
Number of Pages: 30
Subjects: NATURAL SCIENCES > Mathematics
Divisions: Faculty of Science > Department of Mathematics
Depositing User: Iva Prah
Date Deposited: 27 Oct 2015 13:50
Last Modified: 27 Oct 2015 13:50
URI: http://digre.pmf.unizg.hr/id/eprint/4321

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