TY - JOUR AU - Yu. N. Zakharyan AU - T. N. Fomenko TI - Zero preservation for a family of multivalued functionals, and applications to the theory of fixed points and coincidences JO - Doklady Rossijskoj akademii nauk. Matematika, informatika, processy upravleniâ PY - 2020 SP - 13 EP - 17 VL - 493 UR - http://geodesic.mathdoc.fr/item/DANMA_2020_493_a2/ LA - ru ID - DANMA_2020_493_a2 ER -