scholarly journals Mazur-Ulam theorem under weaker conditions in the framework of 2-fuzzy 2-normed linear spaces

2013 ◽  
Vol 2013 (1) ◽  
Author(s):  
Choonkil Park ◽  
Cihangir Alaca
Keyword(s):  
Linear Spaces ◽  
Normed Linear Spaces ◽  
Ulam Theorem ◽  
Weaker Conditions

An orthogonality in normed linear spaces based on angular distance inequality

2015 ◽  
Vol 90 (2) ◽  
pp. 281-297 ◽  
Author(s):  
F. Dadipour ◽  
F. Sadeghi ◽  
A. Salemi
Keyword(s):  
Angular Distance ◽  
Linear Spaces ◽  
Normed Linear Spaces
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