after Issai Schur: List of things named after Issai Schur Schur algebra Schur complement Schur index Schur indicator Schur multiplier Schur orthogonality...

In mathematics, Schur's lemma is an elementary but extremely useful statement in representation theory of groups and algebras. In the group case it says...

is the Fitting subgroup, and the Frobenius complement is uniquely determined up to conjugacy by the Schur-Zassenhaus theorem. In particular a finite group...

decomposed is Hermitian, the spectral decomposition is a special case of the Schur decomposition (see the proof in case of normal matrices below). The spectral...

are conformable with them for partitioning. Furthermore, A and the Schur complement of A in P: P/A = D − CA−1B must be invertible. Equivalently, by permuting...

) = {\displaystyle (D-CA^{-1}B)=} a much smaller matrix called the Schur complement of A {\displaystyle A} . This is the FKF method that may make it computationally...

Dictionaries. Archived from the original on 2007-09-29. Retrieved 2007-05-24. Schur, Norman; Ehrlich, Eugene; Ehrlich, Richard (1987). British English from...

Sylow. This period saw Hans Zassenhaus's famous Schur-Zassenhaus theorem on the existence of complements to Hall's generalization of Sylow subgroups, as...

Charles W. (2003), Pioneers of Representation Theory: Frobenius, Burnside, Schur, and Brauer, History of Mathematics, Providence, R.I.: American Mathematical...

etc. A simple but useful tool in studying irreducible representations is Schur's lemma. It has two parts: If V, W are irreducible g {\displaystyle {\mathfrak...