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_equilibriummeasure(V) hanging without error #51

@OliverLunt

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@OliverLunt

If I run equilibriummeasure(x -> x^2) then the function hangs seemingly indefinitely without returning an output. From playing around with this package a few years ago, I would expect it to return within a few seconds.

After investigating, there appears to be an issue on line 24 of EquilibriumMeasures.jl in the _equilibriummeasure function:

H = T̃ \ (inv.(x .- x') * wŨ) # Hilbert wU\-> T̃

It is the backslash operation that seems to hang. I don't think it is an issue with automatic differentiation, since this line hangs even if I call the function directly (rather than via jacobian as in line 87).

Any idea what's causing the issue? I have found this package very helpful before; thanks for putting it together!

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