[1] Univ Politecn Cataluna, BarcelonaTech, EPSEVG, Dept Matemat Aplicada 4, Vilanova I La Geltru 08800, Spain
[2] Univ Politecn Cataluna, BarcelonaTech, EPSEVG, Inst Org & Control, Vilanova I La Geltru 08800, Spain
[3] Univ Barcelona, Dept Estruct & Constituents Mat, E-08028 Barcelona, Spain
[4] Univ Barcelona, Inst Ciencies Cosmos, E-08028 Barcelona, Spain
[5] Toho Univ, Dept Phys, Chiba 2748510, Japan