Csima, Géza Isoptic surfaces of segments in \(\mathbf{S}^2 \times \mathbf{R}\) and \(\mathbf{H}^2 \times \mathbf{R}\) geometries. (English) Zbl 07792541 J. Geom. 115, No. 1, Paper No. 2, 17 p. (2024). MSC: 53A20 53A35 52C35 53B20 PDFBibTeX XMLCite \textit{G. Csima}, J. Geom. 115, No. 1, Paper No. 2, 17 p. (2024; Zbl 07792541) Full Text: DOI arXiv OA License
Szirmai, Jenő On Menelaus’ and Ceva’s theorems in Nil geometry. (English) Zbl 07797594 Acta Univ. Sapientiae, Math. 15, No. 1, 123-141 (2023). MSC: 53A20 53A35 52C35 53B20 PDFBibTeX XMLCite \textit{J. Szirmai}, Acta Univ. Sapientiae, Math. 15, No. 1, 123--141 (2023; Zbl 07797594) Full Text: DOI arXiv OA License
Csima, Géza; Szirmai, Jenő Translation-like isoptic surfaces and angle sums of translation triangles in \(\mathbf{Nil}\) geometry. (English) Zbl 1520.53012 Result. Math. 78, No. 5, Paper No. 194, 19 p. (2023). Reviewer: Bruno Zimmermann (Trieste) MSC: 53A40 53A20 53A35 52C35 PDFBibTeX XMLCite \textit{G. Csima} and \textit{J. Szirmai}, Result. Math. 78, No. 5, Paper No. 194, 19 p. (2023; Zbl 1520.53012) Full Text: DOI arXiv
Szirmai, Jenö Interior angle sums of geodesic triangles in \(\mathbf S^2\times \mathbf R\) and \(\mathbf H^2 \times \mathbf R\) geometries. (English) Zbl 1451.53024 Bul. Acad. Ştiinţe Repub. Mold., Mat. 2020, No. 2(93), 44-61 (2020). MSC: 53A20 53A35 52C35 53B20 57K35 PDFBibTeX XMLCite \textit{J. Szirmai}, Bul. Acad. Științe Repub. Mold., Mat. 2020, No. 2(93), 44--61 (2020; Zbl 1451.53024) Full Text: arXiv Link