@article{oai:soar-ir.repo.nii.ac.jp:00018256,
author = {Hiroshima, Fumio and Sasaki, Itaru},
issue = {2},
journal = {KYUSHU JOURNAL OF MATHEMATICS},
month = {Sep},
note = {The multiplicity of the lowest eigenvalue E of the so-called non-commutative harmonic oscillator Q(alpha, beta) is studied. It is shown that E is simple for alpha and beta in some region., Article, KYUSHU JOURNAL OF MATHEMATICS. 67(2):355-366 (2013)},
pages = {355--366},
title = {MULTIPLICITY OF THE LOWEST EIGENVALUE OF NON-COMMUTATIVE HARMONIC OSCILLATORS},
volume = {67},
year = {2013}
}