Results 11 to 20 of about 1,020 (214)

Totally Positive Wronskian Matrices and Symmetric Functions [PDF]

open access: yesAxioms
The elements of the bidiagonal decomposition (BD) of a totally positive (TP) collocation matrix can be expressed in terms of symmetric functions of the nodes. Making use of this result, and studying the relation between Wronskian and collocation matrices
Pablo Díaz   +2 more
doaj   +2 more sources

Wronskian Addition Formula and Darboux-Pöschl-Teller Potentials [PDF]

open access: yesJournal of Mathematics, 2013
For the famous Darboux-Pöschl-Teller equation, we present new wronskian representation both for the potential and the related eigenfunctions. The simplest application of this new formula is the explicit description of dynamics of the DPT potentials and ...
Pierre Gaillard, Vladimir Matveev
doaj   +2 more sources

On one generalization of Wronskian

open access: yesLietuvos Matematikos Rinkinys, 2007
In this article the properties of the specially introduced determinant, elements of which are the divided differences in different orders are studied.
Eduardas Kirjackis
doaj   +3 more sources

The Wronskian and its derivatives

open access: yesAtti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2011
This note reports on some joint work with I. Scherbak, aiming to overview a connection between generalized wronskians (of fundamental systems of solutions of linear ordinary differential equations with constant coefficients) and the intersection theory ...
Letterio Gatto
doaj   +4 more sources

Zeros of the Wronskian and renormalized oscillation theory [PDF]

open access: yesAmerican Journal of Mathematics, 1996
For general Sturm-Liouville operators with separated boundary conditions, we prove the following: If E 1,2 ∈ R and if u 1,2 solve the differential equation Hu j = E j u j , j = 1, 2 and respectively satisfy the boundary condition on the left/right, then the dimension of the spectral projection P ( E 1 , E 2 ) ( H ) of H equals the number of zeros of ...
Gesztesy, F., Simon, B., Teschl, G.
openaire   +5 more sources

With Wronskian through the Looking Glass [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2021
In the work of Mukhin and Varchenko from 2002 there was introduced a Wronskian map from the variety of full flags in a finite dimensional vector space into a product of projective spaces. We establish a precise relationship between this map and the Plücker map.
Gorbounov, Vassily, Schechtman, Vadim
openaire   +4 more sources

Wronskians and Linear Independence [PDF]

open access: yesThe American Mathematical Monthly, 2010
We give a new and simple proof of the fact that a finite family of analytic functions has a zero Wronskian only if it is linearly dependent.
Bostan, Alin, Dumas, Philippe
openaire   +3 more sources

Coefficients of Wronskian Hermite polynomials [PDF]

open access: yes, 2020
We study Wronskians of Hermite polynomials labeled by partitions and use the combinatorial concepts of cores and quotients to derive explicit expressions for their coefficients.
Clare Dunning   +5 more
core   +1 more source

Some Conjectures on Wronskian and Casorati Determinants of Orthogonal Polynomials [PDF]

open access: yes, 2015
In this paper, we conjecture some regularity properties for the zeros of Wronskian and Casorati determinants whose entries are orthogonal polynomials. These determinants are formed by choosing orthogonal polynomials whose degrees run on a finite set of ...
Mario Pérez   +5 more
core   +1 more source

Meromorphic cosets and the classification of three-character CFT

open access: yesJournal of High Energy Physics, 2023
We investigate the admissible vector-valued modular forms having three independent characters and vanishing Wronskian index and determine which ones correspond to genuine 2d conformal field theories.
Arpit Das   +2 more
doaj   +1 more source

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