¼­¿ï´ë ÀÛ¿ë¼Ò ¼¼¹Ì³ª 2010 Apr 23: °­µ¿¿À(¼­¿ï´ë); Hyponormality of Block Toeplitz operators with circulant symbols 2010 Oct 8: °­µ¿¿À(¼­¿ï´ë); Block Toeplitz operators 2011 Mar 18: °­µ¿¿À(¼­¿ï´ë); Interpolation problems and hyponormal Toeplitz operators 2012 Sep 7: °­µ¿¿À(¼­¿ï´ë); Normality of Toeplitz operators and kernels of Toeplitz operators 2014 May 9: °­µ¿¿À(¼­¿ï´ë); Normal Hankel operators with operator-valued symbols