http://xyst.i2p/inciter_kozcg.html
Numerically approximating the solution as , where denotes the unknowns at the discrete node , leads to the Galerkin weak statement Integrating the flux term by parts, neglecting the resulting boundary integral (assuming zero flux on the problem boundary), and applying and , yields the final weak form for the whole domain, , All integrals above are evaluated by breaking up the domain, , into sub-domains as a sum over integrals over discrete elements, , where the inner summation is over...