Results 61 to 70 of about 3,108 (166)
On collineation groups of translation planes of order q4
Let P be an affine translation plane of order q4 admitting a nonsolvable group G in its translation complement. If G fixes more than q+1 slopes, the structure of G is determined.
V. Jha, N. L. Johnson
doaj +1 more source
Matrix spread sets of p-primitive semifield planes
In this article we present the matrix spread sets of the p-primitive planes of order p4 where p=3,5,7,11.
M. Cordero
doaj +1 more source
Behavior of Time-varying Constants in Relativity
In this paper, we consider Bianchi type III and Kantowski-Sachs spacetimes and discuss the behavior of time-varying constants $G$ and $\Lambda$ by using two symmetric techniques, namely, kinematic self-similarity and matter collineation. In the kinematic
Kausar, H. Rizwana, Sharif, M.
core +1 more source
Figure and affect in Collins [PDF]
On the eventness of sensation ...
openaire +2 more sources
Matter and Ricci Collineations [PDF]
The infinitesimal transformations that leave invariant a two-covariant symmetric tensor are studied. The interest of these symmetry transformations lays in the fact that this class of tensors includes the energy-momentum and Ricci tensors. We find that in most cases the class of infinitesimal generators of these transformations is a finite dimensional ...
openaire +3 more sources
Greg Robert Hyde. (a) Les collines. In: Comité de Conservation des Monuments de l'Art Arabe. Fascicule 40, exercice 1946-1953, 1961. p. 31.
openaire +2 more sources
Summary Two cases of Treacher Collins syndrome are reported. The family history is shown to be variable, but there appears to be a distinct familial incidence. A comparison has been drawn between the Treacher Collins syndrome and unilateral facial agenesis. The embryology is discussed, and it has been suggested that the causative factor may influence
openaire +4 more sources
Group-labeled light dual multinets in the projective plane (with Appendix)
In this paper we investigate light dual multinets labeled by a finite group in the projective plane $PG(2,\mathbb{K})$ defined over a field $\mathbb{K}$. We present two classes of new examples.
Korchmáros, Gábor, Nagy, Gábor P.
core +1 more source
Lie and Noether symmetries of geodesic equations and collineations
The Lie symmetries of the geodesic equations in a Riemannian space are computed in terms of the special projective group and its degenerates (affine vectors, homothetic vector and Killing vectors) of the metric.
A. Barnes+20 more
core +1 more source
The Collins: W. Collin, Court Bookbinders & Ernst Collin, the Author of the Pressbengel
The Berlin-based firm of W. Collin led by Wilhelm and Georg Collin and the antiquarian, author, and editor Ernst Collin were among the leaders in German bookbinding trade and writings about the trade from the mid-1800's into the mid-1930's. During that same time, bookbinding experienced many transformations, as well, moving from a trade practiced in ...
openaire +2 more sources