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Differential Systems for Biorthogonal Polynomials Appearing in 2-Matrix Models and the Associated Riemann?Hilbert Problem

Riemann-hilbert ProblemOrthogonal PolynomialHilbert ProblemAlgebraic AnalysisMatrix TheoryBiorthogonal Polynomials AppearingFunctional AnalysisDifferential SystemsDiscrete Integrable System