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Results tagged with linear-pde
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user 171026
Questions about linear partial differential equations. Often used in combination with the top-level tag ap.analysis-of-pdes.
6
votes
1
answer
285
views
Space of solutions to a fourth order wave equation
I'm interested in finding solutions a fourth order version of the standard wave equation in $d$ dimensional Minkowski spacetime $\mathcal{M}^d$. Defining $\Box := \partial_0^2 - \sum_{i = 1}^{d-1} \pa …
- 333
5
votes
2
answers
423
views
General solution to an ultrahyperbolic PDE
$\DeclareMathOperator\SO{SO}$The following PDE defined on $\mathbb{R}^2$ $$\frac{\partial}{\partial x}\frac{\partial}{\partial y}f(x,y) = 0,$$ has solution $$f(x,y) = g(x) + h(y),$$ where $g,h : \math …
- 333