\bigotimesThe \bigotimes symbol represents the tensor product, which is an operation that takes two vectors and returns a new vector in a higher-dimensional space. It is used in various fields such as physics, computer science, and mathematics, particularly in the context of vector spaces and linear algebra.
Tensor product of vector spaces V and W.
V \bigotimes WTensor product of matrices A and B.
A \bigotimes BTensor product of a sequence of vector spaces V_i from i=1 to n.
\bigotimes_{i=1}^n V_i