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--></style></head><body lang=KO link=blue vlink="#954F72" style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal><span lang=EN-US>Dear developers<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>I am a PhD student at Charles University in Prague.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>My research topic is a posteriori error estimate.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>I am writing to ask you if DUNE can solve my problem.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>I have tested several products of free software. For example, I confirm that FreeFem cannot solve my problem from my tests and the main author who says that it is impossible to do it.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>After spending a lot of time, I decided to ask developers before using their software.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>I hope you can answer my question. Also, I do not need to conduct a lot of simulations.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>My problem is to solve a PDE like -div(g(u) * grad(u)) = f, discretized by discontinuous Galerkin methods. Here, u is the solution, g(u) is a nonlinear function, and f is a load function. So, g(u) can be </span>“<span lang=EN-US>abs(grad(u))</span>”<span lang=EN-US> or u^2.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Please tell me if DUNE can solve the problem and you have an example.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>If you can confirm if DUNE can do or not, it is a lot of help because I can text other software and make some conclusions for the next actions.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Best regards<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Hyungeun<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt;font-family:"굴림",sans-serif'><o:p> </o:p></span></p></div></body></html>