Yu, Hai Xia et Li, Jun Feng, Weak (1,1) Boundedness of Oscillatory Singular Integral with Variable Phase, Acta mathematica Sinica. English series (Print) , 35(11), 2019, pp. 1741-1759
In this paper, the weak (1,1) boundedness of oscillatory singular integral with variable phase P(x).(y) for any x, y . ., Tf(x):=p.v.....eiP(x).(y)f(x.y)dyy is studied, where P is a real monic polynomial on ..