TY - JOUR AU - Ya. M. Dymarskii TI - On topological properties of manifolds of eigenfunctions generated by a family of periodic Sturm–Liouville problems JO - Contemporary Mathematics. Fundamental Directions PY - 2006 SP - 22 EP - 37 VL - 16 UR - http://geodesic.mathdoc.fr/item/CMFD_2006_16_a2/ LA - ru ID - CMFD_2006_16_a2 ER -