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Fixed points of isometry groups in Euclidean space

Known as: Centre of symmetry, Center of symmetry, Center 
A fixed point of an isometry group is a point that is a fixed point for every isometry in the group. For any isometry group in Euclidean space the… 
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Fixed point (mathematics)

Papers overview

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2014
2014
On global well-posedness for the Einstein-Maxwell-Euler system in Bondi coordinates
We analyze the Einstein-Maxwell equations for an irrotational stiff fluid. Under the spherical symmetry assumption on the space… 
2006
2006
catena -Poly[[(2,2′-bipyridine-κ 2 N , N ′)-praseodymium(III)]-μ-dichloroacetate-1κ 2 O : O ′:2κ O -di-μ-dichloroacetato-κ 4 O : O ′]
The title compound, [Pr(C2HCl2O2)3(C10H8N2)]n, was synthesized by reaction of praseodymium(III) dichloro­acetate with 2,2… 
2006
2006
Tetra-μ-acetato-κ4O:O′;κ3O,O′:O′;κ3O:O,O′-bis[(acetato-κ2O,O′)(1,10-phenanthroline-κ2N,N′)holmium(III)]
The dimeric title complex, [Ho2(CH3COO)6(C12H8N2)2], lies about a centre of symmetry. Each cation is coordinated by a chelating 1… 
2002
2002
Bis­(pyrazine-2-carbox­amide)­bis­(tri­fluoro­methanesulfonato)copper(II) monohydrate
The copper(II) ion in [Cu(C5H5N3O)2(CF3SO3)2]·H2O lies on a center of symmetry and is coordinated by two pyrazine­carbox­amide… 
2001
2001
Evidence for binarity in the bipolar planetary nebulae A 79 , He 2-428 and M 1-91
We present low and high resolution long-slit spectra of three bipolar planetary nebulae (PNe) with bright central cores: A 79, He… 
1997
1997
Stereochemical aspects of carotenoids
Abstract 
1993
1993
Completion of occluded shapes using symmetry
Following the view that symmetry is a continuous feature, a continuous symmetry measure (CSM) is developed to evaluate symmetrics… 
1991
1991
Structure of 5,17-dimethyl-11,23-dioctylcalix[4]arene
The title compound C46O4H60 crystallizes in the triclinic space group, P¯1, witha=11.584(2),b=16.261(2),c=11.172(1) Å,α=103.15(8… 
1976
1976
Crystal structure and optical and magnetic properties of tetrakis(diethylamido)uranium(IV), a five-coordinate dimeric complex in the solid state
The volatile U(IV) compound U(N(C/sub 2/H/sub 5/)/sub 2/)/sub 4/ is dimeric in the solid state and exhibits an unusual and… 
1967
1967
Sur les propriétés optiques linéaires et non linéaires des atomes et des molécules
L'auteur discute quelques experiences optiques non lineaires qui permettent de determiner les proprietes optiques lineaires et…