Vol. 35, No. 3, Special issue dedicated to professor Qamrul Hasan Ansari on the occasion of his 6oth anniversary (2019), pp. 349-363 (15 pages) The purposes of this paper are to establish an ...
The method of upper-lower solutions for continuous parabolic equations is extended to some finite difference system for numerical solutions. The idea of this method is that by using the upper or lower ...
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