Hernández, E.; Jáuregui, A.; Lohr, D.; Mondragón, A. Particular spectral singularity in the continuum energies: a manifestation as resonances. (English) Zbl 1370.81082 J. Phys. A, Math. Theor. 50, No. 26, Article ID 265301, 20 p. (2017). MSC: 81Q70 81U05 35A20 35B34 35P05 81Q10 PDFBibTeX XMLCite \textit{E. Hernández} et al., J. Phys. A, Math. Theor. 50, No. 26, Article ID 265301, 20 p. (2017; Zbl 1370.81082) Full Text: DOI arXiv
Fernández-García, N.; Hernández, E.; Jáuregui, A.; Mondragón, A. Exceptional points of a Hamiltonian of von Neumann-Wigner type. (English) Zbl 1268.81060 J. Phys. A, Math. Theor. 46, No. 17, Article ID 175302, 17 p. (2013). MSC: 81Q05 81Q10 81U05 81Q70 PDFBibTeX XMLCite \textit{N. Fernández-García} et al., J. Phys. A, Math. Theor. 46, No. 17, Article ID 175302, 17 p. (2013; Zbl 1268.81060) Full Text: DOI
Hernández, E.; Jáuregui, A.; Mondragón, A. Geometry of mixing and degeneracy of resonances in a two-channel model. (English) Zbl 1168.81412 Kielanowski, Piotr (ed.) et al., XXVI international workshop on geometrical methods in physics, Białowieża, Poland, 1-7 July 2007. Melville, NY: American Institute of Physics (AIP) (ISBN 978-0-7354-0470-0/hbk). AIP Conference Proceedings 956, 79-95 (2007). MSC: 81U05 81Q70 81U20 35B34 PDFBibTeX XMLCite \textit{E. Hernández} et al., AIP Conf. Proc. 956, 79--95 (2007; Zbl 1168.81412)
Hernández, E.; Jáuregui, A.; Mondragón, A. Crossings and anticrossings of unbound states. (English) Zbl 1134.81366 Int. J. Theor. Phys. 46, No. 8, 1890-1913 (2007). MSC: 81Q10 35B34 PDFBibTeX XMLCite \textit{E. Hernández} et al., Int. J. Theor. Phys. 46, No. 8, 1890--1913 (2007; Zbl 1134.81366) Full Text: DOI
Hernández, E.; Jáuregui, A.; Mondragón, A; Nellen, L. Degeneracy of resonances: branch point and branch cuts in parameter space. (English) Zbl 1118.81071 Int. J. Theor. Phys. 46, No. 6, 1666-1701 (2007). MSC: 81U05 81Q70 PDFBibTeX XMLCite \textit{E. Hernández} et al., Int. J. Theor. Phys. 46, No. 6, 1666--1701 (2007; Zbl 1118.81071) Full Text: DOI