[1] Jagiellonian Univ, Doctoral Sch Exact & Nat Sci, Krakow, Poland
[2] Jagiellonian Univ, Chair Optimizat & Control, Krakow, Poland
[3] Univ Perpignan Via Domitia, Lab Math & Phys, Perpignan, France
[4] Univ Austral, Dept Matemat, FCE, Rosario, Argentina
[5] Consejo Nacl Invest Cient & Tecn, Buenos Aires, Argentina