“…From then on, many kinds of elliptic equations involving critical or supercritical exponents over bounded domains or in the whole space have been extensively considered. For example, we refer to [13,18,25,10] for the setting of bounded domains, and see also [3,23,8,4] for the setting of whole space. To nonlocal aspect of the tension arising from nonlocal measurements of the fractional length of string, Fiscella and Valdinoci in [11] proposed a stationary Kirchhoff type equation.…”