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 May5 accepted Factoring a time derivative operator outside of an integral in space May5 asked Factoring a time derivative operator outside of an integral in space Apr8 awarded Nice Question Mar24 accepted What is the purpose of computing the eigenvalue of a PDE problem? Feb28 accepted Name of a maximum bound Feb28 comment Name of a maximum bound Thanks @copper.hat! I presume that we could also limit our search for a maximum to the unit ball $||x||=1$, correct? Feb28 asked Name of a maximum bound Feb15 comment Convexity of a function @Star: I agree with GodricSeer. If you could provide some of the details (or an outline) of your proof, and where in the proof you need help, we will be able to help you better. Feb15 comment Convexity of a function Have you tried using the definition of convexivity? en.wikipedia.org/wiki/Convex_function#Definition Jan31 comment Prove that the eigenvalues of a block matrix are the combined eigenvalues of its blocks Thank you so much for posting this question! You may have just single handedly saved my research!!! Jan20 asked Classification of linear systems of partial differential equations Jan20 accepted Asymptotic Expansion of a Multiscale Partial Differential Equation Jan19 accepted Taylor Series for functions $f:R^n\rightarrow R^n$ Jan19 answered Asymptotic Expansion of a Multiscale Partial Differential Equation Jan19 asked Asymptotic Expansion of a Multiscale Partial Differential Equation Jan15 comment Taylor Series for functions $f:R^n\rightarrow R^n$ @GiuseppeNegro: What form does it take then? Jan15 asked Taylor Series for functions $f:R^n\rightarrow R^n$ Jan15 awarded Yearling Jan9 accepted Determining the effective coefficient in a boundary value problem. Jan9 comment Determining the effective coefficient in a boundary value problem. Oh, I see now... It was staring at me in my face and I didn't even realize it. So, using the derived formula, I can simply apply the condition $u(1)=1$ into the formula and solve for $-q_0$. I can't believe it was that simple! Thanks, PavelM.