eng Ansari Education and Research Society Journal of Ultra Scientist of Physical Sciences Jan 2026 38 1 1 10 http://dx.doi.org/10.22147/jusps-B/380101 1551 article On (E,q) (C,1) Strong Summability of Fourier Series and its Derived Series U.S. YADAV 1 J.P. SRIVASTAVA 1 PHOOL MIYAN 1 Department of Mathematics and Computer Science School of Basic Sciences Babu Banarasi Das University, Lucknow-226028 (India) <p style="text-align:justify">The present paper deals with theorem on strong(E,q) (C,1)&nbsp;summability of Fourier series and its derived series under very general condition. It generalizes a well-known result on strong (E,q) (C,1)) summability of Fourier series under certain condition due to Bhatia and Sachan9</p> https://ultraphysicalsciences.org/paper/1551/ Convergence. Fourier series (E,q) (C,1)