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math-ph2026
Continuum limit of discretized matrix-valued Fourier multipliers
Ruben Karapetyan, MatÄj TuÅ¡ek
Building upon a recent result by H. Cornean, H. Garde, and A. Jensen concerning continuum limits of discrete Dirac operators, we extend the analysis to a wide class of block operat…
math-ph2025
Non-self-adjoint Dirac operators on graphs
Markus Holzmann, Václav Růžek, MatÄj TuÅ¡ek
In this paper we introduce and study generally non-self-adjoint realizations of the Dirac operator on an arbitrary finite metric graph. Employing the robust boundary triple framewo…