References
- Bender C , Fring A , Günther U , et al . Quantum physics with non-Hermitian operators. J Phys A Math Theor. 2012;45:440301.
- Garcia SR , Prodan E , Putinar M . Mathematical and physical aspects of complex symmetric operators. J Phys A Math Theor. 2014;47:1–51.
- Messiah A . Quantum mechanics II. New York (NY): Dover Publication; 1965.
- Sobrino L . Elements of non-relativistic quantum Mechanics. World Scientific; 1996.
- Weinberg S . The quantum theory of fields. Cambridge University Press; 1995.
- Garcia SR , Putinar M . Complex symmetric operators and applications. Trans Amer Math Soc. 2006;358:1285–1315.
- Garcia SR . The norm and modulus of a Foguel operator. Indiana Univ Math J. 2009;58:2305–2315.
- Garcia SR , Wogen WR . Some new classes of complex symmetric operators. Trans Amer Math Soc. 2010;362:6065–6077.
- Jung S , Ko E , Lee M , et al . On local spectral properties of complex symmetric operators. J Math Anal Appl. 2011;379:325–333.
- Jung S , Ko E , Lee JE . On complex symmetric operator matrices. J Math Anal Appl. 2013;406:373–385.
- Ko E , Lee JE . On complex symmetric Toeplitz operators. J Math Anal Appl. 2016;434:20–34.
- An I , Ko E , Lee JE . Weyl type theorem for complex symmetric operator matrices. Filomat. 2017;31(9):2891–2900.
- Hwang IS , Kang DO , Lee WY . A gap between hyponormality and subnormality for block Toeplitz operators. J Math Anal Appl. 2011;383:883–891.
- Gu C , Hendricks J , Rutherford D . Hyponormality of Block Toeplitz operators. Pacific J Math. 2006;223:95–111.
- Benhida C , Chō M , Ko E , et al . On symmetric and skew-symmetric operators. Filomat. 2018;32(1):293–303.