peterlam Messages 16 Reaction score 0 Thread starter Jul 25, 2011 #1 For a matrix A, if its nullity is equal to 1, what is the implication of that? What spans its null space? Thanks a lot!
For a matrix A, if its nullity is equal to 1, what is the implication of that? What spans its null space? Thanks a lot!
pmsrw3 Messages 459 Reaction score 1 Jul 25, 2011 #2 The null space of a nullity 1 matrix is spanned by a single vector. What that vector is depends on the matrix.
The null space of a nullity 1 matrix is spanned by a single vector. What that vector is depends on the matrix.
micromass Staff Emeritus Science Advisor Homework Helper Insights Author Messages 22,170 Reaction score 3,335 Jul 25, 2011 #3 Some easy implications are that the matrix will not be invertible. Moreover, A will have 0 has an eigenvalue and the geometric multiplicty of 0 will be 1.
Some easy implications are that the matrix will not be invertible. Moreover, A will have 0 has an eigenvalue and the geometric multiplicty of 0 will be 1.