update: auto commit
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Nice, this is a computable condition! But physically we expect most modes to have the same characteristic speed $\shift{^\xi}$, resulting a algebraic multiplicity $\sim 22$, while the size of matrix is 55, then the number of minors to check is
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Nice, this is a computable condition! But physically we expect most modes to have the same characteristic speed $\shift{^\xi}$, resulting a algebraic multiplicity $\sim 22$, while the size of matrix is 55, then the number of minors to check is
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\begin{equation*}
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\begin{equation*}
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\binom{55}{34}^2 = 708507400701023142362023505625.
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\binom{55}{34}^2 = 708507400701023142362023505625 = 7.085\times 10^{29}.
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\end{equation*}
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\end{equation*}
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It's impossible to compute so many minors.
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It's impossible to compute so many minors.
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\end{frame}
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\end{frame}
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