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We prove the Global Elliptic Law for random matrices <m:math xmlns:m="http://www.w3.org/1998/Math/MathML"> <m:mrow> <m:msub> <m:mi mathvariant="normal">Ξ</m:mi> <m:mi>n</m:mi> </m:msub> <m:mo>=</m:mo> <m:mrow> <m:mo stretchy="false">{</m:mo> <m:msubsup> <m:mi>ξ</m:mi> <m:mrow> <m:mi>i</m:mi> <m:mo></m:mo> <m:mi>j</m:mi> </m:mrow> <m:mrow> <m:mo stretchy="false">(</m:mo> <m:mi>n</m:mi> <m:mo stretchy="false">)</m:mo> </m:mrow> </m:msubsup> <m:mo stretchy="false">}</m:mo> </m:mrow> </m:mrow> </m:math> {Ξₙ=\{ξᵢⱼ⁽ⁿ⁾\}} of the general form, i.e. their diagonal entries <m:math xmlns:m="http://www.w3.org/1998/Math/MathML"> <m:msubsup> <m:mi>ξ</m:mi> <m:mrow> <m:mi>i</m:mi> <m:mo></m:mo> <m:mi>i</m:mi> </m:mrow> <m:mrow> <m:mo stretchy="false">(</m:mo> <m:mi>n</m:mi> <m:mo stretchy="false">)</m:mo> </m:mrow> </m:msubsup> </m:math> {ξᵢᵢ⁽ⁿ⁾} have nonzero expectations and the pairs of the entries <m:math xmlns:m="http://www.w3.org/1998/Math/MathML"> <m:mrow> <m:mo stretchy="false">(</m:mo> <m:msubsup> <m:mi>ξ</m:mi> <m:mrow> <m:mi>i</m:mi> <m:mo></m:mo> <m:mi>j</m:mi> </m:mrow> <m:mrow> <m:mo stretchy="false">(</m:mo> <m:mi>n</m:mi> <m:mo stretchy="false">)</m:mo> </m:mrow> </m:msubsup> <m:mo>,</m:mo> <m:msubsup> <m:mi>ξ</m:mi> <m:mrow> <m:mi>j</m:mi> <m:mo></m:mo> <m:mi>i</m:mi> </m:mrow> <m:mrow> <m:mo stretchy="false">(</m:mo> <m:mi>n</m:mi> <m:mo stretchy="false">)</m:mo> </m:mrow> </m:msubsup> <m:mo stretchy="false">)</m:mo> </m:mrow> </m:math> {(ξᵢⱼ⁽ⁿ⁾,ξⱼᵢ⁽ⁿ⁾)} , <m:math xmlns:m="http://www.w3.org/1998/Math/MathML"> <m:mrow> <m:mi>i</m:mi> <m:mo>≠</m:mo> <m:mi>j</m:mi> </m:mrow> </m:math> {i≠ j} have nonzero covariances. In this case the global elliptic law means that the support of the accompanying spectral density of eigenvalues of matrix <m:math xmlns:m="http://www.w3.org/1998/Math/MathML"> <m:msub> <m:mi mathvariant="normal">Ξ</m:mi> <m:mi>n</m:mi> </m:msub> </m:math> {Ξₙ} looks like the picture of several galaxies made by telescope. The proof of the Global Elliptic Law based on generalized Lindeberg’s condition, Victoria transform, respect method and new limit theorems.
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Vyacheslav L. Girko (2025) studied this question.
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