id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ma-88	Zhou, Chuanjiang; Liu, Qi; Li, Yongjin	A New Approximate Birkhoff Orthogonality Type	2022-05-09	14	.pdf	application/pdf	5509	404	84	If we want x� ⊥B y, then the inequality ‖x + ty‖≥ (1 −�)‖x‖ should hold for all t ∈R, thus we have: ‖(1 + tz,t(1 −z))‖≥ 1 − � t ∈R. https://doi.org/10.28924/ada/ma.2.16 Eur. In order to satisfy x ⊥I� y or equivalently |‖x +y‖2−‖x−y‖2| ≤ 4�‖x‖‖y‖, the following inequality shuold hold: |‖(1 + c, 1)‖2 −‖(1 −c,−1)‖2|	cache/ma-88.pdf	txt/ma-88.txt
