Linear algebra is concerned with vector spaces of all dimensions and linear transformations between them, including systems of linear equations, bases, dimensions, subspaces, matrices, determinants, traces, eigenvalues and eigenvectors, diagonalization, Jordan forms, etc. For questions specifically ...
The graph diffusion kernel of a graph is the exponential of its Laplacian $\exp(-\beta L)$ (or a similar expression depending on how you define the kernel). If you have labels on some vertices, you ...
Let $A$ be a non-singular $n \times n$ matrix and suppose that Gaussian elimination with partial pivoting has been applied to produce $PA = LU$, where $P$ is a permutation, $L$ is a unit lower ...