@article{oai:ynu.repo.nii.ac.jp:00006738,
 author = {Furuta, Takayuki},
 issue = {1&2},
 journal = {Yokohama Mathematical Journal = 横濱市立大學紀要. D部門, 数学},
 month = {},
 note = {application/pdf, We show a counter example to Rai [2] on approximate point spectra of polar factors of hyponormal operators.},
 pages = {225--226},
 title = {A COUNTER EXAMPLE TO A RESULT ON APPROXIMATE POINT SPECTRA OF POLAR FACTORS OF HYPONORMAL OPERATORS},
 volume = {32},
 year = {1984}
}