Simsek, Hakan; Özdemir, Mustafa Shape curvatures of the Lorentzian plane curves. (English) Zbl 1392.53023 Commun. Fac. Sci. Univ. Ank., Sér. A1, Math. Stat. 66, No. 2, 276-288 (2017). MSC: 53A35 53B25 53B30 PDF BibTeX XML Cite \textit{H. Simsek} and \textit{M. Özdemir}, Commun. Fac. Sci. Univ. Ank., Sér. A1, Math. Stat. 66, No. 2, 276--288 (2017; Zbl 1392.53023) Full Text: DOI
Şimşek, Hakan; Özdemir, Mustafa On focal surfaces formed by timelike normal rectilinear congruence. (English) Zbl 1371.53012 Commun. Fac. Sci. Univ. Ank., Sér. A1, Math. Stat. 65, No. 2, 55-64 (2016). MSC: 53A35 53B30 PDF BibTeX XML Cite \textit{H. Şimşek} and \textit{M. Özdemir}, Commun. Fac. Sci. Univ. Ank., Sér. A1, Math. Stat. 65, No. 2, 55--64 (2016; Zbl 1371.53012) Full Text: DOI