A New Numerical Method to Solve Some <math xmlns="http://www.w3.org/1998/Math/MathML" id="M1"> <msub> <mrow> <mtext>PDE</mtext> </mrow> <mrow> <mi>s</mi> </mrow> </msub> </math> in the Unit Ball and Comparison with the Finite Element and the Exact Solution
International journal of differential equations