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Low-Rank Equations

Definition

Low-Rank Equations are mathematical expressions that involve matrices where the number of linearly independent rows or columns, known as the rank, is considerably smaller than the matrix’s overall dimensions. These equations are utilized in various fields to simplify complex systems by identifying and leveraging underlying structural properties. In computational mathematics, solving or manipulating low-rank equations can lead to significant efficiency gains compared to general matrix operations. They represent a compressed form of information.