Results 1 to 10 of about 590 (97)

Elementary Abelian 2-subgroups in an Autotopism Group of a Semifield Projective Plane

open access: diamondИзвестия Иркутского государственного университета: Серия "Математика", 2020
Elementary Abelian 2-subgroups in an Autotopism Group of a Semifield Projective Plane} We investigate the hypotheses on a solvability of the full collineation group for non-Desarguesian semifield projective plane of a finite order (the question 11.76 in ...
O. V. Kravtsova
doaj   +2 more sources

2-elements in an Autotopism Group of a Semifield Projective Plane

open access: diamondИзвестия Иркутского государственного университета: Серия "Математика", 2022
We investigate the well-known hypothesis of D.R. Hughes that the full collineation group of non-Desarguesian semifield projective plane of a finite order is solvable (the question 11.76 in Kourovka notebook was written down by N.D. Podufalov). The spread
Olga Kravtsova
doaj   +2 more sources

Primitive Semifields and Fractional Planes of order q^5 [PDF]

open access: greenRendiconti di Matematica e delle Sue Applicazioni, 2010
The dimension of an affine plane π of order n, relative to a subplane π0 of order m, is specified by dim_π0 π = log_m n. The exotic embeddings of a plane in another plane of the “wrong” characteristic, pioneered by H.
Minerva Cordero, Vikram Jha
doaj   +1 more source

Semifields, relative difference sets, and bent functions [PDF]

open access: yes, 2014
Recently, the interest in semifields has increased due to the discovery of several new families and progress in the classification problem. Commutative semifields play an important role since they are equivalent to certain planar functions (in the case ...
Pott, Alexander   +2 more
core   +2 more sources

On symplectic semifield spreads of PG(5,q2), q odd [PDF]

open access: yes, 2017
We prove that there exist exactly three non-equivalent symplectic semifield spreads of PG ( 5 , q2), for q2> 2 .38odd, whose associated semifield has center containing Fq.
Marino, Giuseppe, Pepe, Valentina
core   +1 more source

Symplectic spreads, planar functions and mutually unbiased bases [PDF]

open access: yes, 2014
In this paper we give explicit descriptions of complete sets of mutually unbiased bases (MUBs) and orthogonal decompositions of special Lie algebras $sl_n(\mathbb{C})$ obtained from commutative and symplectic semifields, and from some other non-semifield
Abdukhalikov, Kanat
core   +1 more source

Cluster algebras of type $A_2^{(1)}$ [PDF]

open access: yes, 2010
In this paper we study cluster algebras $\myAA$ of type $A_2^{(1)}$. We solve the recurrence relations among the cluster variables (which form a T--system of type $A_2^{(1)}$).
A Buan   +22 more
core   +2 more sources

Cluster ensembles, quantization and the dilogarithm [PDF]

open access: yes, 2009
Cluster ensemble is a pair of positive spaces (X, A) related by a map p: A -> X. It generalizes cluster algebras of Fomin and Zelevinsky, which are related to the A-space.
Fock, V. V., Goncharov, A. B.
core   +4 more sources

(2^n,2^n,2^n,1)-relative difference sets and their representations [PDF]

open access: yes, 2013
We show that every $(2^n,2^n,2^n,1)$-relative difference set $D$ in $\Z_4^n$ relative to $\Z_2^n$ can be represented by a polynomial $f(x)\in \F_{2^n}[x]$, where $f(x+a)+f(x)+xa$ is a permutation for each nonzero $a$.
Zhou, Yue
core   +1 more source

Characterization of tropical hemispaces by (P,R)-decompositions [PDF]

open access: yes, 2013
We consider tropical hemispaces, defined as tropically convex sets whose complements are also tropically convex, and tropical semispaces, defined as maximal tropically convex sets not containing a given point.
Akian   +30 more
core   +5 more sources

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