The space $X^n_d$ of $n \times n$ positive definite matrices with determinant = 1 is considered as a subset of $R^{n(n+1)/2}$ with isometries given by $X \rightarrow ...
A group of mathematicians has shown that at critical moments, a symmetry called rotational invariance is a universal property across many physical systems. For more than 50 years, mathematicians have ...
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