11 citations · 18 across the 30 of their papers we have counts for
6 papers · 1 filter
A note on numerical radius attaining mappings
Mingu Jung
We prove that if every bounded linear operator (or -homogeneous polynomials) with the compact approximation property attains its numerical radius, then is a finite dimension…
Weak-star quasi norm attaining operators
Geunsu Choi, Mingu Jung, Sun Kwang Kim +1
For Banach spaces and , a bounded linear operator is said to weak-star quasi attain its norm if the -closure of the image by of…
On the strong subdifferentiability of the homogeneous polynomials and (symmetric) tensor products
Sheldon Dantas, Mingu Jung, Martin Mazzitelli +1
In this paper, we study the (uniform) strong subdifferentiability of the norms of the Banach spaces , and $\hat{\…
On a set of norm attaining operators and the strong Birkhoff-James orthogonality
Geunsu Choi, Mingu Jung, Sun Kwang Kim
Continuing the study of recent results on the Birkhoff-James orthogonality and the norm attainment of operators, we introduce a property namely the adjusted Bhatia-Šemrl property f…
A generalized ACK structure and the denseness of norm attaining operators
Geunsu Choi, Mingu Jung
Inspired by the recent work of Cascales et al., we introduce a generalized concept of ACK structure on Banach spaces. Using this property, which we call by the quasi-ACK structure,…
Residuality in the set of norm attaining operators between Banach spaces
Mingu Jung, Miguel Martin, Abraham Rueda Zoca
We study the relationship between the residuality of the set of norm attaining functionals on a Banach space and the residuality and the denseness of the set of norm attaining oper…