33+ Vector Spaces And Subspaces Background. In mathematics, and more specifically in linear algebra, a linear subspace, also known as a vector subspace is a vector space that is a subset of some larger vector space. The zero vector is given by the zero polynomial.
For example, the complex number 2+3i can be considered a vector, since in some way it is the vector.
What makes these vectors vector spaces is that they are closed under multiplication by a scalar and addition, i.e., vector space must be closed under linear next, gilbert strang introduces subspaces of vector spaces. The objects of such a set are called vectors. A vector space is a way of generalizing the concept of a set of vectors. Strictly speaking, a subspace is a vector space included in another larger vector.