Numerical methods for computing angles between linear subspaces
Numerical methods for computing angles between linear subspaces
Assume that two subspaces <italic>F</italic> and <italic>G</italic> of a unitary space are defined as the ranges (or null spaces) of given rectangular matrices <italic>A</italic> and <italic>B</italic>. Accurate numerical methods are developed for computing the principal angles <inline-formula content-type="math/mathml"> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" alttext="theta Subscript k Baseline left-parenthesis upper F comma upper G …