• Certain estimates of oscillatory integrals and extrapolation 

      Al-Qassem, Hussain (2010 , Article)
      In this paper we study the boundedness properties of certain oscillatory integrals with polynomial phase. We obtain sharp estimates for these oscillatory integrals. By the virtue of these estimates and extrapolation we ...
    • On certain estimates of rough oscillatory singular integrals 

      Al-Qassem, H. M. (2011 , Article)
      We obtain appropriate sharp estimates for rough oscillatory integrals with polynomial phase. Our results represent significant improvements as well as natural extensions of what was known previously.
    • Oscillatory Singular Integral Operators with Hölder Class Kernels 

      Al-Qassem H.; Cheng L.; Pan Y. ( Birkhauser Boston , 2019 , Article)
      We establish the boundedness on Lp(Rn) of oscillatory singular integral operators whose kernels are the products of an oscillatory factor with bilinear phase and a Calderón–Zygmund kernel K(x, y) satisfying a Hölder ...