An extension of pythagorean and isosceles orthogonality and a characterization of inner-product spaces
1983 ◽
Vol 39
(4)
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pp. 295-298
◽
1973 ◽
Vol 41
(2)
◽
pp. 569-569
◽
1973 ◽
Vol 79
(3)
◽
pp. 530-532
◽
1993 ◽
Vol 180
(1)
◽
pp. 207-220
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Keyword(s):
1968 ◽
Vol 19
(6)
◽
pp. 1306-1306
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