Galaxy connections

The Galaxy Group/cosmology Connections

Groups of galaxies are highly linked to cosmology: 1) groups are tidally destroyed by the tidal eld of the cluster they fall into; 2) spherical infall leads to the young cosmo-dynamical state of loose groups, a fundamental surface for groups, 0 ' 0:3, and the mixed nature of compact groups (virialized groups, groups at full collapse, and chance alignments within collapsing loose groups, for dec...

Compact Groups in the UZC galaxy sample : II . Connections between morphology , luminosity and large - scale density ⋆

The nature of Compact Groups (CGs) is investigated by comparing luminosity and morphology of CG galaxies, CG Neighbours and Isolated galaxies. CGs turn out to display a clear excess of both E-S0 and bright galaxies with respect to Isolated galaxies. Neighbours exhibit luminosity and morphological content intermediate between Isolated and CG galaxies. Differences between CGs and their surroundin...

Regular Connections among Generalized Connections

The properties of the space A of regular connections as a subset of the space A of generalized connections in the Ashtekar framework are studied. For every choice of compact structure group and smoothness category for the paths it is determined whether A is dense in A or not. Moreover, it is proven that A has Ashtekar-Lewandowski measure zero for every nontrivial structure group and every smoot...

Shen's Processes on Finslerian Connections

Connections between labellings of trees

There are many long-standing conjectures related with some labellings of trees. It is important to connect labellings that are related with conjectures. We find some connections between known labellings of simple graphs.