RT Journal T1 EXISTENCE TO FRACTIONAL CRITICAL EQUATION WITH HARDY-LITTLEWOOD-SOBOLEV NONLINEARITIES A1 Nemat NYAMORADI, Abdolrahman RAZANI PB 数学物理学报(英文版) FD 2021-08-25 YR 2021 JF Acta Mathematica Scientia JO 数学物理学报(英文版) VO 41 IS 4 SP 1321 DO 10.1007/s10473-021-0418-4 K1 Hardy-Littlewood-Sobolev inequality;concentration-compactness principle;variational method;Fractional $p$-Laplacian operators;multiple solutions LK {http://121.43.60.238/sxwlxbB/CN/article/article_16481.shtml}