Showing 1 - 10 of 13
According to many phenomenological and theoretical studies the distribution of family name frequencies in a population … growing population can be represented in Hilbert space, and its time evolution may be analyzed by renormalization group … between the population growth and the name production rates. …
Persistent link: https://www.econbiz.de/10010873596
The distribution of Chinese family names is investigated based on data of the fifth national census of China in 2000, including 7329 Chinese family names and 1.28 billion people. The cumulative distribution function (CDF) of family name in multiple scales is presented and the correlation between...
Persistent link: https://www.econbiz.de/10010589227
Analysis of word frequency have historically used data that included English, French, or other language, data typically described by Zipf's law. Using data on traditional and modern Chinese literatures, we show here that Chinese character frequency stroked Zipf's law based on literature before...
Persistent link: https://www.econbiz.de/10010589093
Clustering has often described by Ewens Sampling Formula (ESF). Focusing the attention on the evergreen problem of the size of firms, we discuss the compatibility of empirical data and ESF. In order to obtain a power law for all sizes in the present paper we shall explore the route inspired by...
Persistent link: https://www.econbiz.de/10010589151
We introduce a mean-field-type approximation for description of company's income statistics. Utilizing huge company data we show that a discrete version of Langevin equation with additive and multiplicative noises can appropriately describe the time evolution of a company's income fluctuation in...
Persistent link: https://www.econbiz.de/10010590270
Distribution functions of annual income of companies are analyzed based on two company databases. A clear power law distribution consistent with the Zipf's law can be confirmed for Japanese companies over more than three decades in income scale. Similar distributions can be confirmed in some...
Persistent link: https://www.econbiz.de/10010664863
Here, assuming a general communication model where objects map to signals, a power function for the distribution of signal frequencies is derived. The model relies on the satisfaction of the receiver (hearer) communicative needs when the entropy of the number of objects per signal is maximized....
Persistent link: https://www.econbiz.de/10011061653
An elementary stochastic model, termed the normalization model, is put forward which does demonstrate that power-laws generically occur in systems with finite resources. The model is capable to exhibit power-law distributions with arbitrary power law exponents; nevertheless, for a large fraction...
Persistent link: https://www.econbiz.de/10011063694
Colony morphology of wild and mutant strains of Aspergillus nidulans at various nutrient and agar levels was investigated. Two types of colony patterning were found for these strains. One type produced uniform colonies at all nutrient and agar levels tested, and the other exhibited morphological...
Persistent link: https://www.econbiz.de/10010590115
restraining effect on the development of the population. Danuta Makowiec gave an improved model based on the lattice, where the …
Persistent link: https://www.econbiz.de/10010873898