Karapınar, Erdal; Öztürk, Ali; Rakočević, Vladimir A fixed point theorem for a system of Pachpatte operator equations. (English) Zbl 07333529 Aequationes Math. 95, No. 2, 245-254 (2021). Reviewer: Jürgen Appell (Würzburg) MSC: 47H10 47H09 54H25 PDF BibTeX XML Cite \textit{E. Karapınar} et al., Aequationes Math. 95, No. 2, 245--254 (2021; Zbl 07333529) Full Text: DOI
Dehghani, Mahdi; Abed, Mohammed; Jahanipur, Ruhollah A generalized orthogonality relation via norm derivatives in real normed linear spaces. (English) Zbl 1428.46008 Aequationes Math. 93, No. 4, 651-667 (2019). MSC: 46B20 46C50 39B82 PDF BibTeX XML Cite \textit{M. Dehghani} et al., Aequationes Math. 93, No. 4, 651--667 (2019; Zbl 1428.46008) Full Text: DOI
Balestro, Vitor; Horváth, Ákos G.; Martini, Horst; Teixeira, Ralph Angles in normed spaces. (English) Zbl 1365.52006 Aequationes Math. 91, No. 2, 201-236 (2017). Reviewer: S. S. Kutateladze (Novosibirsk) MSC: 52A21 32A70 46B20 46C15 46C50 51M05 51M25 PDF BibTeX XML Cite \textit{V. Balestro} et al., Aequationes Math. 91, No. 2, 201--236 (2017; Zbl 1365.52006) Full Text: DOI arXiv
Wójcik, Paweł Characterizations of smooth spaces by approximate orthogonalities. (English) Zbl 1331.46013 Aequationes Math. 89, No. 4, 1189-1194 (2015). Reviewer: Maria Fernanda Botelho (Memphis) MSC: 46B20 46C50 PDF BibTeX XML Cite \textit{P. Wójcik}, Aequationes Math. 89, No. 4, 1189--1194 (2015; Zbl 1331.46013) Full Text: DOI
Zamani, Ali; Moslehian, Mohammad Sal Approximate Roberts orthogonality. (English) Zbl 1329.46019 Aequationes Math. 89, No. 3, 529-541 (2015). MSC: 46B20 46C05 PDF BibTeX XML Cite \textit{A. Zamani} and \textit{M. S. Moslehian}, Aequationes Math. 89, No. 3, 529--541 (2015; Zbl 1329.46019) Full Text: DOI
Sikorska, Justyna Orthogonalities and functional equations. (English) Zbl 1316.39008 Aequationes Math. 89, No. 2, 215-277 (2015). MSC: 39B55 39-02 39B52 39B82 46B20 47B49 15A86 PDF BibTeX XML Cite \textit{J. Sikorska}, Aequationes Math. 89, No. 2, 215--277 (2015; Zbl 1316.39008) Full Text: DOI
Rakić, Dragan S.; Djordjević, Dragan S. Space pre-order and minus partial order for operators on Banach spaces. (English) Zbl 1275.47006 Aequationes Math. 85, No. 3, 429-448 (2013). Reviewer: Mohammad Sal Moslehian (Mashhad) MSC: 47A05 15A09 06A06 PDF BibTeX XML Cite \textit{D. S. Rakić} and \textit{D. S. Djordjević}, Aequationes Math. 85, No. 3, 429--448 (2013; Zbl 1275.47006) Full Text: DOI
Bajraktarević, Mahmud Sur les solutions continues de deux équations fonctionnelles. (French) Zbl 0583.39003 Aequationes Math. 29, 175-182 (1985). Reviewer: K.Baron MSC: 39B05 PDF BibTeX XML Cite \textit{M. Bajraktarević}, Aequationes Math. 29, 175--182 (1985; Zbl 0583.39003) Full Text: DOI EuDML