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A Lagrangian program detecting the Weighted Fermat-Steiner-Frechet multitree for a Frechet multisimplex in the dimensional Euclidean Space
Anastasios N. Zachos
In this paper, we introduce the Fermat-Steiner-Frechet problem for a given tuple of positive real numbers determining the edge lengths of an simplex in $\mat…
An analytical solution of the weighted Fermat-Torricelli problem on the unit sphere
Anastasios N. Zachos
We obtain an analytical solution for the weighted Fermat-Torricelli problem for an equilateral geodesic triangle A_1A_2A_3 which is composed by three equal geodesic arcs (sides) of…
Analytical solution of the weighted Fermat-Torricelli problem for tetrahedra: The case of two pairs of equal weights
Anastasios N. Zachos
The weighted Fermat-Torricelli problem for four non-collinear and non-coplanar points in the three dimensional Euclidean Space states that: Given four non-collinear and non-coplana…
Two new analytical solutions and two new geometrical solutions for the weighted Fermat-Torricelli problem in the Euclidean plane
Anastasios N. Zachos
We obtain two analytic solutions for the weighted Fermat-Torricelli problem in the Euclidean Plane which states that: Given three points in the Euclidean plane and a positive real…
Analytical solution of the weighted Fermat-Torricelli problem for convex quadrilaterals in the Euclidean plane: The case of two pairs of equal weights
Anastasios N. Zachos
The weighted Fermat-Torricelli problem for four non-collinear points in R^2 states that: Given four non-collinear points A_1, A_2, A_3,A_4 and a positive real number (weight) B_i w…
A plasticity principle of convex quadrilaterals on a convex surface of bounded specific curvature
Anastasios Zachos
We derive the plasticity equations for convex quadrilaterals on a complete convex surface with bounded specific curvature and prove a plasticity principle which states that: Given…