The matrix equation $AX=0$ is a standard representation in linear algebra.
A system of linear equations is considered homogeneous if the constant term for every equation in the system is zero. When represented in matrix form $AX=B$, a system is homogeneous if and only if $B$ is the zero vector.
The given equation $AX=0$ directly fits this definition, where the vector on the right-hand side is the zero vector.
The equation is inherently linear because matrix multiplication ($AX$) involves only sums and products of the variables in $X$ with constant coefficients from matrix $A$. There are no terms like $x_i^2$, $x_i x_j$, or other non-linear functions.
Combining the properties of linearity and the zero vector on the right-hand side, the matrix equation $AX=0$ specifically represents a system of Homogeneous linear equations.