Results 71 to 80 of about 290 (118)

Self-Similar Bianchi Type VIII and IX Models

open access: yes, 2003
It is shown that in transitively self-similar spatially homogeneous tilted perfect fluid models the symmetry vector is not normal to the surfaces of spatial homogeneity.
Apostolopoulos, P.S., Tsamparlis, M.
core   +1 more source

Fundamental regions for non-isometric group actions

open access: yes
Published online: 06 September 2024We generalise results about isometric group actions on metric spaces and their fundamental regions to the context of merely continuous group actions.
Teisseire, S., Leistner, T.
core   +1 more source

Linear Trajectories on Homothety Surfaces

open access: yes, 2018
A homothety surface is constructed by gluing the sides of polygons in the plane by homotheties—compositions of scalings and translations. Homothety surfaces generalize translation surfaces, which have been well-studied for several decades.
Sanderson, Slade
core  

Homotheties and isometries of metric spaces [PDF]

open access: yesMatemática Contemporânea, 2005
openaire   +1 more source

MISAME

open access: yes
Recording of Nicolas Sordet's Graphe Uni. For electronics. This work projects certain elements of the sound world into the geometric world with an analog like sound.
Sordet, Nicolas, 1958-
core  

Un'esperienza di utilizzo del Tangram in attività di Matematica nella Scuola Media

open access: yes, 1990
In this work we have tried to give an example of how one, through creative games, can find a tangible verification of studied notions, receive stimuli and motivations for the study of Mathematics and directly be begun, in a natural way, to the pleasure ...
R. Iaderosa, PELLEGRINO, Consolato
core  

The study of the traslation, rotations and homotheties through modeling and simulated problematic situations in the cabri geometry

open access: yes, 2004
El Cabri nos ayuda a ver una geometría mas dinámica (activa), en este caso para estudiar un poco más a fondo las traslaciones, rotaciones y homotecias, para lo cual se elaboraron una serie de talleres fundamentados en el diseño de modelaciones y ...
Romero Parra, Lina Maria
core  

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