TY - JOUR AU - Koch, Herbert AU - RĂ¼land, Angkana AU - Shi, Wenhui TI - The variable coefficient thin obstacle problem: Optimal regularity and regularity of the regular free boundary JO - Annales de l'I.H.P. Analyse non linĂ©aire PY - 2017 SP - 845 EP - 897 VL - 34 IS - 4 PB - Elsevier UR - http://www.numdam.org/articles/10.1016/j.anihpc.2016.08.001/ DO - 10.1016/j.anihpc.2016.08.001 LA - en ID - AIHPC_2017__34_4_845_0 ER -