TY - JOUR AU - Vladimir M. Sadovskii TI - Conditions for convexity of the isotropic function of the second-rank tensor JO - Žurnal Sibirskogo federalʹnogo universiteta. Matematika i fizika PY - 2011 SP - 265 EP - 272 VL - 4 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/JSFU_2011_4_2_a13/ LA - ru ID - JSFU_2011_4_2_a13 ER -