ABSTRACT In this paper, we study a class of fractional Kirchhoff‐Choquard equations with fixed mass constraints in . Based on the Pohozaev manifold, by establishing the compactness lemma of the Palais–Smale sequence and using Ekeland variational principle, the existence of solutions is obtained and their asymptotic behavior is analyzed for . Through variable substitution, the low‐order fractional Kirchhoff equation is transformed into an equivalent system. Combining fractional inequalities and variational methods, the existence of solutions is obtained for .
Guo et al. (Fri,) studied this question.