Remarks on concavity of the auxiliary function appearing in quantum reliability function in classical-quantum channels. - Jun Ichi Fujii; Ritsuo Nakamoto; Kenjiro Yanagi (ISIT, 2005)

Concavity of the auxiliary function appearing in quantum reliability function an classical-quantum channels - Jun Iichi Fujii; Ritsuo Nakamoto; Kenjiro Yanagi (CoRR, 2005)

Concavity of the Auxiliary Function Appearing in Quantum Reliability Function. - Jun Iichi Fujii; Ritsuo Nakamoto; Kenjiro Yanagi (IEEE Trans. Inf. Theory, 2006)

Spectrum and Entropy for Infinite Directed Graphs. - Jun Ichi Fujii (Structural Analysis of Complex Networks, 2011)