6533b833fe1ef96bd129b858

RESEARCH PRODUCT

Large-x Analysis of an Operator-Valued Riemann–Hilbert Problem

Alexander ItsKarol K. Kozlowski

subject

Pure mathematicsIntegrable systemNonlinear schrodinger-equationMathematics::Complex VariablesGeneral Mathematics010102 general mathematicsMathematicsofComputing_NUMERICALANALYSIS[ MATH.MATH-MP ] Mathematics [math]/Mathematical Physics [math-ph]Fredholm determinantImpenetrable bose-gas[ MATH.MATH-FA ] Mathematics [math]/Functional Analysis [math.FA][MATH.MATH-FA]Mathematics [math]/Functional Analysis [math.FA]01 natural sciencessymbols.namesakeRiemann hypothesisOperator (computer programming)[MATH.MATH-MP]Mathematics [math]/Mathematical Physics [math-ph]0103 physical sciencesHilbert's problemssymbolsMethod of steepest descentRiemann–Hilbert problem010307 mathematical physics0101 mathematicsMathematics

description

International audience; The purpose of this paper is to push forward the theory of operator-valued Riemann-Hilbert problems and demonstrate their effectiveness in respect to the implementation of a non-linear steepest descent method a la Deift-Zhou. In this paper, we demonstrate that the operator-valued Riemann-Hilbert problem arising in the characterization of so-called c-shifted integrable integral operators allows one to extract the large-x asymptotics of the Fredholm determinant associated with such operators.

https://hal-univ-bourgogne.archives-ouvertes.fr/hal-01412826