TY - JOUR TI - On some generalizations of $(n,m)$-normal powers operators on Hilbert space AU - E. H. Abood AU - M. A. Al-loz JO - J. Progress. Res. Math. PY - 1978 DA - 1978// VL - 7 ID - Abood1978 ER - TY - JOUR TI - On some generalization of normal operators on Hilbert space AU - E. H. Abood AU - M. A. Al-loz JO - Iraqi J. Sci. PY - 2015 DA - 2015// VL - 56 ID - Abood2015 ER - TY - JOUR TI - On the joint class of $(m, q)$-partial isometries and the joint $m$-invertible tuples of commuting operators on a Hilbert space AU - S. A. O. Ahmed Mahmoud JO - Ital. J. Pure Appl. Math. PY - 2018 DA - 2018// VL - 40 ID - Mahmoud2018 ER - TY - JOUR TI - On $(m,C)$-Isometric Commuting Tuples of Operators on a Hilbert Space AU - S. A. O. Ahmed Mahmoud AU - M. Chō AU - J. E. Lee JO - Results Math. PY - 2018 DA - 2018// VL - 73 ID - Mahmoud2018 ER - TY - JOUR TI - On the classes of $(n, m)$-power $D$-normal and $(n,m)$-power $D$-quasi-normal operators AU - S. A. O. Ahmed Mahmoud AU - O. B. Sid Ahmed JO - Oper. Matrices PY - 2019 DA - 2019// VL - 13 ID - Mahmoud2019 ER - TY - JOUR TI - On $n$-Normal Operators AU - S. A. Alzuraiqi AU - A. B. Patel JO - General Math. Notes PY - 2020 DA - 2020// VL - 1 ID - Alzuraiqi2020 ER - TY - JOUR TI - $(A,m)$-Symmetric commuting tuple of operators on a Hilbert space AU - M. Chō AU - S. A. O. Ahmed Mahmoud JO - J. Inequalities Appl. PY - 2019 DA - 2019// VL - 22 ID - Chō2019 ER - TY - JOUR TI - $(n_1,\cdots, n_p)$-quasi-$m$-isometric commuting tuple of operators on a Hilbert space AU - M. Chō AU - E. M. O. Beiba AU - S. A. O. Ahmed Mahmoud JO - Ann. Funct. Anal. PY - 2021 DA - 2021// VL - 12 ID - Chō2021 ER - TY - JOUR TI - Remarks on $n$-normal Operators AU - M. Chō AU - J. E. Lee AU - K. Tanahashic AU - A. Uchiyamad JO - Filomat PY - 2018 DA - 2018// VL - 32 ID - Chō2018 ER - TY - JOUR TI - Spectral properties of $n$-normal operators AU - M. Chō AU - B. N. Načevska JO - Filomat PY - 2018 DA - 2018// VL - 3 ID - Chō2018 ER - TY - JOUR TI - $k$-Hyponormality of multivariable weighted shifts AU - R. E. Curto AU - S. H. Lee AU - J. Yoon JO - J. Funct. Anal. PY - 2005 DA - 2005// VL - 229 ID - Curto2005 ER - TY - JOUR TI - Hyponormality and subnormality for powers of commuting pairs of subnormal operators AU - R. E. Curto AU - S. H. Lee AU - J. Yoon JO - J. Funct. Anal. PY - 2007 DA - 2007// VL - 245 ID - Curto2007 ER - TY - JOUR TI - Polynomially normal operators AU - D. S. Djordjević AU - M. Chō AU - D. Mosić JO - J. Funct. Anal. PY - 2020 DA - 2020// VL - 11 ID - Djordjević2020 ER - TY - JOUR TI - $m$-Isometric Commuting Tuples of Operators on a Hilbert Space AU - J. Gleason AU - S. Richter JO - Integral Equations Operator Theory PY - 2006 DA - 2006// VL - 56 ID - Gleason2006 ER - TY - JOUR TI - Joint $A$-hyponormality of operators in semi-Hilbert spaces AU - M. Guesba AU - E. M. O. Beiba AU - S. A. O. Ahmed Mahmoud JO - Linear and Multilinear Algebra PY - 2019 DA - 2019// VL - 67 ID - Guesba2019 ER - TY - JOUR TI - $(m, p)$-isometric and $(m, \infty)$-isometric operator tuples on normed spaces AU - P. H. W. Hoffmann AU - M. Mackey JO - Asian-Eur. J. Math. PY - 2015 DA - 2015// VL - 8 ID - Hoffmann2015 ER - TY - JOUR TI - On $n$-Power Normal Operators AU - A. A. S. Jibril JO - Arab. J. Sci. Eng. Sect. A Sci. PY - 2008 DA - 2008// VL - 33 ID - Jibril2008 ER - TY - JOUR TI - Products of normal operators AU - I. Kaplansky JO - Duke Math. J. PY - 1953 DA - 1953// VL - 20 ID - Kaplansky1953 ER - TY - JOUR TI - Seminormality of operators from their tensor product AU - J. Stochel JO - Proc. Amer. Math. Soc. PY - 1996 DA - 1996// VL - 124 ID - Stochel1996 ER -