[PDF][PDF] On Pohlke's type projections in the hyperbolic case

R Manfrin - Int. J. Geom, 2024 - academia.edu
Abstract Let OP1, OP2, OP3 be three non-parallel segments in a plane ω. We find the
necessary and sufficient conditions for the existence of the common inscribed ellipse EI and …

[PDF][PDF] A note on a secondary Pohlke's projection

R Manfrin - Int. J. Geom, 2022 - ijgeometry.com
Given three segments OP1, OP2, OP3 in a plane ω, which are not contained in a line, we
find a simple condition for the existence of two distinct ellipses centered at O and …

[PDF][PDF] Some results on Pohlke's type ellipses

R Manfrin - Int. J. Geom, 2022 - ijgeometry.com
Vol. 11 (2022), No. 3, 86 - 101 SOME RESULTS ON POHLKE’S TYPE ELLIPSES Page 1
INTERNATIONAL JOURNAL OF GEOMETRY Vol. 11 (2022), No. 3, 86 - 101 SOME RESULTS …

[PDF][PDF] Double Contact Conics in Involution

G Lefkaditis, A Taouktsoglou - Journal for Geometry and …, 2024 - heldermann-verlag.de
Three coplanar line segments OA, OB, OC are given and three concentric ellipses C1, C2,
C3 are defined, so that every two of the segments are conjugate semi-diameters of one …

[PDF][PDF] Family of Conics Having Double Contact with two Intersecting Ellipses

A Taouktsoglou, G Lefkaditis - Journal for Geometry and …, 2023 - heldermann-verlag.de
Family of Conics Having Double Contact with two Intersecting Ellipses Page 1 Journal for
Geometry and Graphics Volume 27 (2023), No. 1, 11–28 Family of Conics Having Double …

[PDF][PDF] ON POLHKE'S TYPE PROJECTIONS IN THE CYLINDRICAL CASE

R Manfrin - 2023 - researchgate.net
Given three non-parallel segments OP1, OP2, OP3 in a plane ω, we consider the ellipses
EP1, P2, EP2, P3, EP3, P1 having as conjugate semi-diameters the pairs (OP1, OP2),(OP2 …