Hi everybody,(adsbygoogle = window.adsbygoogle || []).push({});

For part of my research, I need to solve an elliptic PDE like:

Δu - k * u = 0,

subject to : 0≤ u(x,y) ≤ 1.0

where k is a positive constant.

Can anyone tell me how I can solve this problem?

Thanks in advance for your help.

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# PDE with an inequality constrain

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