From 4d8ad50a1393375f561faf7c0ba6eddcd848f990 Mon Sep 17 00:00:00 2001 From: Jaron Kent-Dobias Date: Thu, 10 Dec 2020 12:25:55 +0100 Subject: Shorted and reflowed some lines. --- bezout.tex | 18 ++++++++++++------ 1 file changed, 12 insertions(+), 6 deletions(-) diff --git a/bezout.tex b/bezout.tex index 10e0167..6fc863c 100644 --- a/bezout.tex +++ b/bezout.tex @@ -217,7 +217,10 @@ where \end{aligned} \end{equation} \end{widetext} -This leaves a single parameter, $a$, which dictates the magnitude of $z^*\cdot z$, or alternatively the magnitude $y^2$ of the imaginary part. The latter vanishes as $a\to1$, where we should recover known results for the real $p$-spin. +This leaves a single parameter, $a$, which dictates the magnitude of $z^*\cdot +z$, or alternatively the magnitude $y^2$ of the imaginary part. The latter +vanishes as $a\to1$, where we should recover known results for the real +$p$-spin. \begin{figure}[htpb] \centering @@ -255,7 +258,8 @@ shift, or $\rho(\lambda)=\rho_0(\lambda+p\epsilon)$. The Hessian of \end{equation} which makes its ensemble that of Gaussian complex symmetric matrices. Given its variances $\overline{|\partial_i\partial_j H_0|^2}=p(p-1)a^{p-2}/2N$ and -$\overline{(\partial_i\partial_j H_0)^2}=p(p-1)\kappa/2N$, $\rho_0(\lambda)$ is constant inside the ellipse +$\overline{(\partial_i\partial_j H_0)^2}=p(p-1)\kappa/2N$, $\rho_0(\lambda)$ is +constant inside the ellipse \begin{equation} \label{eq:ellipse} \left(\frac{\mathop{\mathrm{Re}}(\lambda e^{i\theta})}{a^{p-2}+|\kappa|}\right)^2+ \left(\frac{\mathop{\mathrm{Im}}(\lambda e^{i\theta})}{a^{p-2}-|\kappa|}\right)^2 @@ -342,7 +346,8 @@ gives =(p-1)^N. \end{equation} This is precisely the Bézout bound, the maximum number of solutions that $N$ -equations of degree $p-1$ may have \cite{Bezout_1779_Theorie}. More insight is gained by looking at the count as a function of $a$, defined by +equations of degree $p-1$ may have \cite{Bezout_1779_Theorie}. More insight is +gained by looking at the count as a function of $a$, defined by \begin{equation} \label{eq:count.def.marginal} \overline{\mathcal N}(\kappa,\epsilon) =\int da\,\overline{\mathcal N}(\kappa,\epsilon,a) @@ -376,9 +381,10 @@ contained within is =(p-1)^{N/2}, \end{equation} the square root of \eqref{eq:bezout} and precisely the number of critical -points of the real pure spherical $p$-spin model. (note the role of conjugation symmetry, already underlined in Ref\cite{Bogomolny_1992_Distribution}). In fact, the full -$\epsilon$-dependence of the real pure spherical $p$-spin is recovered by this -limit as $\epsilon$ is varied. +points of the real pure spherical $p$-spin model. (note the role of conjugation +symmetry, already underlined in Ref\cite{Bogomolny_1992_Distribution}). In +fact, the full $\epsilon$-dependence of the real pure spherical $p$-spin is +recovered by this limit as $\epsilon$ is varied. \begin{figure}[htpb] \centering -- cgit v1.2.3-70-g09d2