The Grassmannian is a fundamental concept in the field of mathematics, particularly in geometry and linear algebra. More formally, the Grassmannian \( \text{Gr}(k, n) \) is a space that parameterizes all \( k \)-dimensional linear subspaces of an \( n \)-dimensional vector space. Here, \( k \) and \( n \) are non-negative integers with \( 0 \leq k \leq n \).
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