• In matrix theory, the PerronFrobenius theorem, proved by Oskar Perron (1907) and Georg Frobenius (1912), asserts that a real square matrix with positive...
    58 KB (8,224 words) - 08:53, 27 May 2025
  • There are several mathematical theorems named after Ferdinand Georg Frobenius. They include: Frobenius theorem (differential topology) in differential...
    810 bytes (123 words) - 13:57, 24 January 2019
  • Ruelle, or the PerronFrobenius operator or Ruelle–PerronFrobenius operator, in reference to the applicability of the PerronFrobenius theorem to the determination...
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  • be most easily understood as an application of the PerronFrobenius theorem. This latter theorem comes from a branch of linear algebra known as the theory...
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  • Thumbnail for Oskar Perron
    Oskar Perron (7 May 1880 – 22 February 1975) was a German mathematician. He was a professor at the University of Heidelberg from 1914 to 1922 and at the...
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  • In functional analysis, the Krein–Rutman theorem is a generalisation of the PerronFrobenius theorem to infinite-dimensional Banach spaces. It was proved...
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  • positive real components, representing positive feedback. M-matrix PerronFrobenius theorem, which shows that any Hurwitz matrix must have at least one negative...
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  • {\displaystyle x^{2}-3x+1} is a Perron number. Perron numbers are named after Oskar Perron; the PerronFrobenius theorem asserts that, for a real square...
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  • identity matrix. For the non-singularity of A, according to the PerronFrobenius theorem, it must be the case that s > ρ(B). Also, for a non-singular M-matrix...
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  • positive-semidefinite matrix Pfaffian Projection Spectral theorem PerronFrobenius theorem List of matrices Diagonal matrix, main diagonal Diagonalizable...
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  • because of the corresponding property for nonnegative matrices. PerronFrobenius theorem Nonnegative matrices Delay differential equation M-matrix P-matrix...
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  • Hilbert's metric and the Banach contraction principle to rederive the PerronFrobenius theorem in finite-dimensional linear algebra and its analogues for integral...
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  • refinement of the Gershgorin Circle Theorem. For matrices with non-negative entries, see PerronFrobenius theorem. Doubly stochastic matrix Hurwitz-stable...
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  • \leq d} nonzero terms. Alternative proofs use Helly's theorem or the PerronFrobenius theorem. For any nonempty P ⊂ R d {\displaystyle P\subset \mathbb...
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  • Gamas's Theorem (multilinear algebra) Gershgorin circle theorem (matrix theory) Inverse eigenvalues theorem (linear algebra) PerronFrobenius theorem (matrix...
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  • above by the maximum degree. This can be seen as result of the PerronFrobenius theorem, but it can be proved easily. Let v be one eigenvector associated...
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  • transitions from one state to some other state of the system. The PerronFrobenius theorem gives sufficient conditions for a Markov chain to have a unique...
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  • eigenvectors of square positive matrices are described by the PerronFrobenius theorem. The trace and every row and column sum/product of a nonnegative...
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  • all the entries in the eigenvector be non-negative imply (by the PerronFrobenius theorem) that only the greatest eigenvalue results in the desired centrality...
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  • Frobenius's theorem (group theory) Frobenius conjecture Frobenius–Schur indicator PerronFrobenius theorem Quadratic Frobenius test Rouché–Frobenius theorem...
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  • Felix Gantmacher as Kotelyanskiĭ lemma. Diagonally dominant matrix PerronFrobenius theorem Sylvester's criterion Hawkins, David; Simon, Herbert A. (1949)...
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  • Thumbnail for Centrality
    unique largest eigenvalue, which is real and positive, by the PerronFrobenius theorem. This greatest eigenvalue results in the desired centrality measure...
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  • Thumbnail for CheiRank
    {\displaystyle G^{*}} belong to the class of PerronFrobenius operators and according to the PerronFrobenius theorem the CheiRank P i ∗ {\displaystyle P_{i}^{*}}...
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  • Thumbnail for Markov chain
    column vector with all entries equal to 1. This is stated by the PerronFrobenius theorem. If, by whatever means, lim k → ∞ P k {\textstyle \lim _{k\to \infty...
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  • for which the eigenvalue is unity. Stationary ergodic process PerronFrobenius theorem Stationary state or ground state in quantum mechanics This set...
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  • problem above, and an active set method called TNT-NN. M-matrix PerronFrobenius theorem Chen, Donghui; Plemmons, Robert J. (2009). Nonnegativity constraints...
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  • is also a stationary probability vector. On the other hand, the PerronFrobenius theorem also ensures that every irreducible stochastic matrix has such...
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  • Thumbnail for PageRank
    matrices. Normed eigenvectors exist and are unique by the Perron or PerronFrobenius theorem. Example: consumers and products. The relation weight is the...
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  • multiplicity one. The "only if" direction is a consequence of the PerronFrobenius theorem. There is also a criterion for regular and connected graphs : a...
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  • diagnosed by Frank H. Hahn.[citation needed] He returned to the PerronFrobenius theorem with his book The Dynamics of A Capitalist Economy. Goodwin's interest...
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