@article{PACHPATTE_1991, title={OPIAL TYPE DISCRETE INEQUALITIES IN TWO VARIABLES}, volume={22}, url={https://journals.math.tku.edu.tw/index.php/TKJM/article/view/4616}, DOI={10.5556/j.tkjm.22.1991.4616}, abstractNote={<div class="page" title="Page 1"> <div class="layoutArea"> <div class="column"> <p><span style="font-size: 9.000000pt; font-family: ’TimesNewRomanPSMT’;">The aim of the present note is to establish two new discrete inequalities of the Opial type involving functions of two variables and their differences. The analysis used in the proofs is elementary and the results established, provide new estimates on these types of inequalities. </span></p> </div> </div> </div>}, number={4}, journal={Tamkang Journal of Mathematics}, author={PACHPATTE, B. G.}, year={1991}, month={Dec.}, pages={323–328} }