|Jan25-13, 12:52 PM||#1|
second order pde -- on invariant?
What the meaning for a second order pde is rotation invariant?
Is all second order pde are rotation invariant? or only laplacian?
|Jan25-13, 10:13 PM||#2|
Well, do you know what "rotation invarient" means to start with?
It sounds like you've come across the terms as part of a course involving laplacians - in which case, you were shown a proof somewhere that the laplacian is rotation invarient. What was the condition the laplacian had to satisfy for the proof to work? Do all 2ndO PDEs satisfy this condition?
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