TY - JOUR
T1 - Collineation group as a subgroup of the symmetric group
AU - Bogomolov, Fedor
AU - Rovinsky, Marat
N1 - Funding Information:
Fedor Bogomolov is supported by NSF grant DMS-1001662 and by AG Laboratory GU-HSE grant RF government ag. 11 11.G34.31.0023. Marat Rovinsky is supported by AG Laboratory NRU-HSE grant RF government ag. 11 11.G34.31.0023 and by RFBR grant 10-01-93113-CNRSL-a “Homological Methods in Geometry”.
PY - 2013/10
Y1 - 2013/10
N2 - Let ψ be the projectivization (i. e., the set of one-dimensional vector subspaces) of a vector space of dimension ≥ 3 over a field. Let H be a closed (in the pointwise convergence topology) subgroup of the permutation group S ψ of the set ψ. Suppose that H contains the projective group and an arbitrary self-bijection of ψ transforming a triple of collinear points to a non-collinear triple. It is well known from [Kantor W. M., McDonough T. P., On the maximality of PSL(d+1,q), d ≥ 2, J. London Math. Soc., 1974, 8(3), 426] that if ψ is finite then H contains the alternating subgroup A ψ of S ψ. We show in Theorem 3. 1 that H=S ψ,if ψ, if ψ is infinite.
AB - Let ψ be the projectivization (i. e., the set of one-dimensional vector subspaces) of a vector space of dimension ≥ 3 over a field. Let H be a closed (in the pointwise convergence topology) subgroup of the permutation group S ψ of the set ψ. Suppose that H contains the projective group and an arbitrary self-bijection of ψ transforming a triple of collinear points to a non-collinear triple. It is well known from [Kantor W. M., McDonough T. P., On the maximality of PSL(d+1,q), d ≥ 2, J. London Math. Soc., 1974, 8(3), 426] that if ψ is finite then H contains the alternating subgroup A ψ of S ψ. We show in Theorem 3. 1 that H=S ψ,if ψ, if ψ is infinite.
KW - Collineations
KW - Projective group
KW - Symmetric groups
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U2 - 10.2478/s11533-012-0131-6
DO - 10.2478/s11533-012-0131-6
M3 - Article
AN - SCOPUS:84868031052
SN - 1895-1074
VL - 11
SP - 17
EP - 26
JO - Central European Journal of Mathematics
JF - Central European Journal of Mathematics
IS - 1
ER -