Collective modes of anisotropic narrow-band Bloch-electron superconductors with nearest-neighbor pairing interaction

1994 ◽  
Vol 50 (22) ◽  
pp. 16623-16630 ◽  
Author(s):  
Susumu Misawa
Keyword(s):  
Nearest Neighbor ◽  
Narrow Band ◽  
Collective Modes ◽  
Pairing Interaction ◽  
Bloch Electron ◽  
Electron Superconductors

New collective modes for a many-body system with proton-neutron pairing interaction

2000 ◽  
Vol 26 (9) ◽  
pp. 1327-1334 ◽  
Author(s):  
A A Raduta ◽  
O Haug ◽  
F Simkovic ◽  
Amand Faessler
Keyword(s):  
Collective Modes ◽  
Body System ◽  
Many Body ◽  
Pairing Interaction

Statistical analysis of classification

1966 ◽  
Vol 24 ◽  
pp. 188-189
Author(s):  
T. J. Deeming
Keyword(s):  
Multivariate Analysis ◽  
Statistical Analysis ◽  
Classification Scheme ◽  
Analytical Procedure ◽  
Narrow Band ◽  
Scientific Research ◽  
Maximum Amount ◽  
Amount Of Information

If we make a set of measurements, such as narrow-band or multicolour photo-electric measurements, which are designed to improve a scheme of classification, and in particular if they are designed to extend the number of dimensions of classification, i.e. the number of classification parameters, then some important problems of analytical procedure arise. First, it is important not to reproduce the errors of the classification scheme which we are trying to improve. Second, when trying to extend the number of dimensions of classification we have little or nothing with which to test the validity of the new parameters.Problems similar to these have occurred in other areas of scientific research (notably psychology and education) and the branch of Statistics called Multivariate Analysis has been developed to deal with them. The techniques of this subject are largely unknown to astronomers, but, if carefully applied, they should at the very least ensure that the astronomer gets the maximum amount of information out of his data and does not waste his time looking for information which is not there. More optimistically, these techniques are potentially capable of indicating the number of classification parameters necessary and giving specific formulas for computing them, as well as pinpointing those particular measurements which are most crucial for determining the classification parameters.

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