O. Christensen, “An Introduction to Frames and Riesz Bases,” Birkhauser, Boston, 2003.

has been cited by the following article:

• TITLE: RETRACTED: Wavelet Packet Frames on a Half Line Using the Walsh-Fourier Transform

  AUTHORS: J. Iqbal

  KEYWORDS: Wavelet Packet; Frame; Walsh Function; Walsh-Fourier Transform; Dilation; Translation; Modulation

  JOURNAL NAME: American Journal of Computational Mathematics, Vol.3 No.1, March 29, 2013

  ABSTRACT: Short Retraction Notice The paper does not meet the standards of "American Journal of Computational Mathematics". This article has been retracted to straighten the academic record. In making this decision the Editorial Board follows COPE's Retraction Guidelines. The aim is to promote the circulation of scientific research by offering an ideal research publication platform with due consideration of internationally accepted standards on publication ethics. The Editorial Board would like to extend its sincere apologies for any inconvenience this retraction may have caused. Editor guiding this retraction: Prof. Hari M. Srivastava (EiC of AJCM) The full retraction notice in PDF is preceding the original paper, which is marked "RETRACTED".