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 Jan14 asked Eigenfunctions of the Helmholtz equation in Toroidal geometry Jan13 comment Stochastic interpretation of Einstein Equations @Willie Wong: Thank you again for your nice comments! You have a lot of knowledge about the structure of general relativity and the underlying geometrical and functional concepts and I enjoy reading your thoughts. So, for this question, the situations seems to be arbitrarily complicated - even though there might exist a corresponding stochastic process we simply don't know it yet :) You may consider posting your comments as answer, I would be glad to accept. Sincerely Jan13 revised Stochastic interpretation of Einstein Equations re-inserted thank you which was edited away :) Jan12 awarded Commentator Jan12 comment What is the key to success for a mathematician? True, especially the last paragraph. Jan11 asked Stochastic interpretation of Einstein Equations Jan11 comment Relation of Brownian Motion to Helmholtz Equation Thank you very much for your thorough answer. By generalizing and giving further examples you even put the story in a very nice context. I don't know but the relationship between such PDE's and stochastical processes seems to me like a nice ansatz for a unification of general relativity with the standard model. Jan11 accepted Relation of Brownian Motion to Helmholtz Equation Jan10 awarded Cleanup Jan10 revised Relation of Brownian Motion to Helmholtz Equation rolled back to a previous revision Jan10 comment Relation of Brownian Motion to Helmholtz Equation Thank you for your answer. Indeed, one can find almost everything on the net - if one knows the right question :) Jan10 comment Relation of Brownian Motion to Helmholtz Equation @Raskolnikov: Thank you for the further inside. It looks like this might be exactly what one would need :) Jan10 comment Relation of Brownian Motion to Helmholtz Equation Thank you for the note, @Raskolnikov. So, do you think that there is any chance one could relate the Brownian walker to a "heat-like" equation $\Delta\psi + k^2\psi = \alpha\partial_{t}\psi$? Greets Jan10 asked Relation of Brownian Motion to Helmholtz Equation Jan9 answered Got to learn matlab Jan8 accepted $2\cdot\int_0^\infty \frac{a-u^2}{\left( u^2+\frac{a^2}{b-a}\right) \left(u^2+\frac{b^2}{b-a} \right) \sqrt{\cdots } }\mathrm {d}u$ Jan7 answered $2\cdot\int_0^\infty \frac{a-u^2}{\left( u^2+\frac{a^2}{b-a}\right) \left(u^2+\frac{b^2}{b-a} \right) \sqrt{\cdots } }\mathrm {d}u$ Jan6 comment $2\cdot\int_0^\infty \frac{a-u^2}{\left( u^2+\frac{a^2}{b-a}\right) \left(u^2+\frac{b^2}{b-a} \right) \sqrt{\cdots } }\mathrm {d}u$ @Moron: Thank you for the push :) I hope it is much more convenient now. Greets Jan6 awarded Editor Jan6 revised $2\cdot\int_0^\infty \frac{a-u^2}{\left( u^2+\frac{a^2}{b-a}\right) \left(u^2+\frac{b^2}{b-a} \right) \sqrt{\cdots } }\mathrm {d}u$ Clearified question