RT Journal T1 STRONG EQUIVALENCES OF APPROXIMATION NUMBERS AND TRACTABILITY OF WEIGHTED ANISOTROPIC SOBOLEV EMBEDDINGS A1 郝季东, 汪和平 PB 数学物理学报(英文版) FD 2020-12-25 YR 2020 JF Acta Mathematica Scientia JO 数学物理学报(英文版) VO 40 IS 6 SP 1765 DO 10.1007/s10473-020-0611-x K1 strong equivalences;tractability;approximation numbers;weighted anisotropic spaces;analytic Korobov spaces LK {http://121.43.60.238/sxwlxbB/CN/article/article_16287.shtml}