Dong-O Kang

collaborators

2 papers

math.FA2019

On complex symmetric block Toeplitz operators

Dong-O Kang, Eungil Ko, Ji Eun Lee

In this paper, we study complex symmetry of Toeplitz operators and block Toeplitz operators. In particular, we give a characterization of complex symmetric block Toeplitz operators…

math.FA2018

Kernels of block Hankel operators and independency of vector-valued functions modulo Nevanlinna class

Dong-O Kang

For a matrix-valued function $Φ \in L_{M_{n \times m}}^{2}$ , it is well-known that the kernel of a block Hankel operator $H_{Φ}$ is an invariant subspace for the shift operator. Thus, if…