A new relaxation in conic form for the euclidean Steiner problem in ℜ n
RAIRO - Operations Research - Recherche Opérationnelle, Tome 35 (2001) no. 4, pp. 383-394.

In this paper, we present a new mathematical programming formulation for the euclidean Steiner Tree Problem (ESTP) in ℜ n . We relax the integrality constrains on this formulation and transform the resulting relaxation, which is convex, but not everywhere differentiable, into a standard convex programming problem in conic form. We consider then an efficient computation of an ϵ-optimal solution for this latter problem using interior-point algorithm.

Mots-clés : euclidean Steiner tree problem, conic form, interior point algorithms 
@article{RO_2001__35_4_383_0,
     author = {Fampa, Marcia and Maculan, Nelson},
     title = {A new relaxation in conic form for the euclidean {Steiner} problem in $\Re ^n$},
     journal = {RAIRO - Operations Research - Recherche Op\'erationnelle},
     pages = {383--394},
     publisher = {EDP-Sciences},
     volume = {35},
     number = {4},
     year = {2001},
     mrnumber = {1896578},
     zbl = {1020.90042},
     language = {en},
     url = {http://www.numdam.org/item/RO_2001__35_4_383_0/}
}
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Fampa, Marcia; Maculan, Nelson. A new relaxation in conic form for the euclidean Steiner problem in $\Re ^n$. RAIRO - Operations Research - Recherche Opérationnelle, Tome 35 (2001) no. 4, pp. 383-394. http://www.numdam.org/item/RO_2001__35_4_383_0/

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