Showing 1 - 10 of 30
The characterization of the galaxy clustering properties in the universe is one of the most interesting and controversial issues in modern cosmology. Here we present the results of the analysis of the recently available three-dimensional catalogues of galaxies, performed with the tools of modern...
Persistent link: https://www.econbiz.de/10010589003
We present a comparative analysis of the medium-long term perspectives of development for sub-Saharan countries in the framework of economic complexity. This analysis is made in comparison with the development of Asian tigers. Economic complexity is a data-driven framework which aims at...
Persistent link: https://www.econbiz.de/10015252017
This paper applies the Economic Fitness and Complexity approach to analyse the underlying factors behind the wide and persistent economic disparities across the Italian regional units. Measures of regional fitness are obtained from their revealed comparative advantage and from their patent...
Persistent link: https://www.econbiz.de/10012692755
Technical trading represents a class of investment strategies for Financial Markets based on the analysis of trends and recurrent patterns of price time series. According standard economical theories these strategies should not be used because they cannot be profitable. On the contrary it is...
Persistent link: https://www.econbiz.de/10009353639
Persistent link: https://www.econbiz.de/10009280797
We study analytically and numerically the critical behavior at the depinning transition and the stretched exponential relaxation in the pinned region of a charge density wave (CDW) under the influence of an applied field. The original model of an elastic string pinned by random sinusoidal...
Persistent link: https://www.econbiz.de/10010586264
We summarize a very recent, exhaustive review (Coleman and Pietronero, Phys. Rep. 213 (1992) 311), which also presents some very exciting new analysis. In that review (and here), we reconsider the experimental data concerning the large scale structure of the universe utilizing the theoretical...
Persistent link: https://www.econbiz.de/10010586904
Networks representing social systems display specific features that put them apart from biological and technological ones. In particular, the number of links attached to a node is positively correlated to that of its nearest neighbours. We develop a model that reproduces this feature, starting...
Persistent link: https://www.econbiz.de/10010590286
Gravitational clustering of a random distribution of point masses is dominated by the effective short-range interactions due to large-scale isotropy. We introduce a one-dimensional cellular automaton to reproduce this effect in the most schematic way: at each time particles move towards their...
Persistent link: https://www.econbiz.de/10010590350
Ideas of Statistical Physics are very relevant for cosmic structures especially considering that the field is undergoing a period of exceptional development with many new data appearing on a monthly basis. In the past years we have focused mostly on galaxy distributions and their statistical...
Persistent link: https://www.econbiz.de/10010590354