Results 61 to 70 of about 5,091 (242)
Matrix spread sets of p-primitive semifield planes
International Journal of Mathematics and Mathematical Sciences, 1997 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
Linear sets in the projective line over the endomorphism ring of a finite field
, 2016 Let $\mathrm{PG}(1,E)$ be the projective line over the endomorphism ring $E=End_q({\mathbb F}_{q^t})$ of the $\mathbb F_q$-vector space ${\mathbb F}_{q^t}$.
Havlicek, Hans, Zanella, Corrado
core +1 more source
, 2006 Let $N$ be a nilpotent group normal in a group $G$. Suppose that $G$ acts transitively upon the points of a finite non-Desarguesian projective plane $\mathcal{P}$.
Gill, Nick
core +2 more sources
Two dimensional dynamical systems which admit Lie and Noether symmetries
, 2011 We prove two theorems which relate the Lie point symmetries and the Noether symmetries of a dynamical system moving in a Riemannian space with the special projective group and the homothetic group of the space respectively.
Aminova A V +12 more
core +1 more source
Reply to Collins and Altman [PDF]
European Journal of Cardio-Thoracic Surgery, 2012 We are pleased that EuroSCORE II [1] continues to generate interest and are happy to respond to concerns about its development and evaluation [2]. We find very little to disagree with in the points raised by Collins and Altman [3], but are not convinced that their suggested alternative analysis would have resulted in materially different results.
Linda D, Sharples, Samer A M, Nashef
openaire +2 more sources
Spacelike Ricci Inheritance Vectors in a Model of String Cloud and String Fluid Stress Tensor
, 2005 We study the consequences of the existence of spacelike Ricci inheritance vectors (SpRIVs) parallel to $x^a$ for model of string cloud and string fluid stress tensor in the context of general relativity.
Carot J +9 more
core +1 more source
On the symmetric block design with parameters (153, 57, 21)
Le Matematiche, 2009 In this paper it is proved that:A) Up to isomorphism and duality there are exactly two possible orbital structures for a putative symmetric block design with parameters (153, 57, 21) constructed using the Frobenius group F_{17·16}B) Up to isomorphism and
Rexhep Gjergji
doaj
British Journal of Plastic Surgery, 1950 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 +2 more sources
Zhongguo Jianchuan YanjiuObjectivesTo improve the ability of autonomous underwater vehicle (AUV) formations to perform tasks in complex obstacle scenarios, a distributed three-dimensional affine formation shape maneuver control method is proposed for multi-AUV formations ...
Mingqi YAO +4 more
doaj +1 more source
Notes on Cooperstein Ovoids in Finite Geometries of Type 𝖤6,1
MathematicsA Cooperstein ovoid is a set of q8+q4+1 pairwise non-collinear points in the Lie incidence geometry E6,1(q). They were introduced by Cooperstein twenty-six years ago, motivated by the fact that possible non-existence of them would imply non-existence of ...
Hendrik Van Maldeghem
doaj +1 more source