Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Chol-Jun Kim"'
Autor:
Chol-jun, Kim
We checked that the distribution of words in text should uniform, which gives Heaps' law as natural result, that is, the number of types of words can be expressed as a power law of the number of tokens within text. We developed a ``superposition'' mo
Externí odkaz:
http://arxiv.org/abs/2305.15413
Autor:
Chol-jun, Kim
Recently, we developed a theory of a geometrically growing system. Here we show that the theory can explain some phenomena of power-law distribution including classical demographic and economic and novel pandemic instances, without introduction of de
Externí odkaz:
http://arxiv.org/abs/2302.13781
Publikováno v:
In Journal of Atmospheric and Solar-Terrestrial Physics December 2024 265
Autor:
Chol-jun, Kim
We show that while the Fourier transform can figure only an "intensity" of a periodic signal, there is an additional information embedded, which is a "coherence" of the signal. Supposing that the periodicity is reflected only on the "coherence," we i
Externí odkaz:
http://arxiv.org/abs/2011.14564
Autor:
Chol-jun, Kim
The spectral analysis with stochastic significance cannot distinguish the spurious cycles effectively, because a non-stationary signal can make a significant peak in spectrum. I show that the random separation between the grand extremes such as grand
Externí odkaz:
http://arxiv.org/abs/2009.09578
Akademický článek
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Autor:
Jik-su, Kim, Chol-jun, Kim
A role of the scalar-matter direct coupling in the evolution of scalar-tensor gravity was studied. If the coupling functions in the generalized scalar-tensor gravity satisfy a definite equation the scalar-tensor gravity is reduced to Einstein's tenso
Externí odkaz:
http://arxiv.org/abs/1912.11227
Autor:
Chol-jun, Kim, Jik-su, Kim
We investigated the Korean records of naked-eye sunspot observations and found an implication of periodicity of about 200-year. Adding the Chinese records we showed that the historical naked-eye sunspot observations have the similar periodicity. Rece
Externí odkaz:
http://arxiv.org/abs/1912.11226
Publikováno v:
Physica Scripta. 98:065101
Via using l 1-norm of quantum coherence and π–tangle, we investigate influences of amplitude-damping and depolarizing channels on quantum coherence and entanglement for W state of Dirac fields when two observers are in accelerating motion. We find
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ca5c978cdfc5f567d720f9daaebe18a8
https://doi.org/10.1088/1402-4896/acce7e
https://doi.org/10.1088/1402-4896/acce7e
Akademický článek
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