RT Journal T1 Shape Optimization for p-Torsional Rigidity Problems A1 Qihua Ruan PB Acta mathematica scientia,Series A FD 2021-12-26 YR 2021 JF Acta mathematica scientia, Series A JO Acta mathematica scientia,Series A VO 41 IS 6 SP 1625 DO K1 ;Shape optimiztion;Overdetermined problem;#i#p#/i#-Torsional rigidity LK {http://121.43.60.238/sxwlxbA/EN/article/article_16540.shtml}