Results 1 to 10 of about 5,438,961 (250)

Zero minors of total positive matrices

open access: yesThe Electronic Journal of Linear Algebra, 2008
In this paper the structure of the zero minors of totally positive matrices is studied and applications are presented.
openaire   +1 more source

Totally Positive Toeplitz Matrices: Classical and Modern

open access: yesVolume 3: Invited Lectures: Sections 1-4
By a theorem of Edrei, an infinite, normalised totally nonnegative upper-triangular Toeplitz matrix is determined by a pair of nonnegative parameter sequences, the `Schoenberg parameters', where nonzero parameters correspond to the roots and poles of a naturally associated generating function.
openaire   +2 more sources

Total positivity of a class of combinatorial matrices

open access: yes, 2018
In this paper, we consider matrices whose entries are combinatorial sequences which can be expressed in terms of a convolution of elementary and complete homogeneous symmetric functions. We establish the total positivity of these matrices using the Lindström-Gessel-Viennot Lemma.
openaire   +2 more sources

Surgery and positive Bakry-Émery Ricci curvature. [PDF]

open access: yesCalc Var Partial Differ Equ
Reiser P, Tripaldi F.
europepmc   +1 more source

Generalizing Matrix Representations to Fully Heterochronous Ranked Tree Shapes. [PDF]

open access: yesBull Math Biol
Jennings-Shaffer C   +3 more
europepmc   +1 more source

Home - About - Disclaimer - Privacy