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math.FA2026
On symmetricity of orthogonality with respect to numerical radius norm
Shamim Sohel
We study Birkhoff-James orthogonality and local symmetric points in the space of vector-valued continuous functions equipped with a numerical-radius type (semi-)norm. We e…
math.FA2026
On the Ball Covering Property of
Ankan Mishra, Kallol Paul, Debmalya Sain +1
We investigate the Ball Covering Property (BCP) of Banach spaces through the lens of Birkhoff-James orthogonality, yielding a new geometric characterization of the property. Applyi…