scholarly journals Split decomposition over an abelian group, Part 2: Group-valued split systems with weakly compatible support

2009 ◽  
Vol 157 (10) ◽  
pp. 2349-2360 ◽  
Author(s):  
Andreas Dress
Keyword(s):  
Abelian Group ◽  
Split Decomposition ◽  
Split Systems ◽  
Weakly Compatible ◽  
Group Part

scholarly journals Quartets in maximal weakly compatible split systems

2009 ◽  
Vol 22 (10) ◽  
pp. 1604-1608 ◽  
Author(s):  
S. Grünewald ◽  
J.H. Koolen ◽  
W.S. Lee
Keyword(s):  
Split Systems ◽  
Weakly Compatible

The size of 3-compatible, weakly compatible split systems

2012 ◽  
Vol 40 (1-2) ◽  
pp. 249-259 ◽  
Author(s):  
Stefan Grünewald ◽  
Jack H. Koolen ◽  
Vincent Moulton ◽  
Taoyang Wu
Keyword(s):  
Split Systems ◽  
Weakly Compatible

The Coordination Chemistry of Phosphoryl Compounds Containing the — N(CH3)2 Group, Part VIII

1972 ◽  
Vol 27 (7) ◽  
pp. 759-763 ◽  
Author(s):  
M. W. G. De Bolster ◽  
W. L. Groeneveld
Keyword(s):  
Coordination Chemistry ◽  
General Formula ◽  
Ligand Field ◽  
Chemical Analyses ◽  
X Ray ◽  
Physical Measurements ◽  
Ligand Field Spectra ◽  
Chloride Adduct ◽  
Ligand Field Parameters ◽  
Group Part

A number of new solvates and adducts containing bisphenyldimethylaminophosphine oxide is reported. The solvates have the general formula M[(C6H5)2P(O)N(CH3)2]42+(anion-)2, in which M = Mg, Ca, Mn, Fe, Co, Ni, Cu, Zn and Cd, and the anions are ClO4- and BF4-. The adducts have the general formula M[(C6H5)2P(O)N(CH3)2]2Cl2, where M stands for the same series of metals.The compounds are characterized and identified by chemical analyses and physical measurements.Ligand-field and vibrational spectra have been investigated; values for the ligand-field parameters are reported. It is concluded that coordination takes place via the oxygen atom of the ligand.X-ray powder patterns were used in combination with ligand-field spectra to deduce the coordination around the metal ions.The interesting behaviour of the nickel (II) chloride adduct upon heating is discussed and it is shown that both a square pyramidal and a tetrahedral modification exists.

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