398,249 research outputs found
Cayley graphs generated by small degree polynomials over finite fields
We improve upper bounds of F. R. K. Chung and of M. Lu, D. Wan, L.-P. Wang,
X.-D. Zhang on the diameter of some Cayley graphs constructed from polynomials
over finite fields
Problems of Clustering of Radiogalaxies
We present the preliminary analysis of clustering of a sample of 1157
radio-identified galaxies from Machalski & Condon (1999). We found that for
separations Mpc their redshift space autocorrelation function
can be approximated by the power law with the correlation length Mpc and slope . The correlation length for
radiogalaxies is found to be lower and the slope steeper than the corresponding
parameters of the control sample of optically observed galaxies. Analysis the
projected correlation function displays possible differences in the
clustering properties between active galactic nuclei (AGN) and starburst (SB)
galaxies.Comment: Submitted: Proceedings of IAUS 290 "Feeding Compact Objects:
Accretion on All Scales", C. M. Zhang, T. Belloni, M. Mendez & S. N. Zhang
(eds.
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