Zobrazeno 1 - 10
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pro vyhledávání: '"YOSHIMURA, JIN"'
Akademický článek
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Autor:
Okabe, Takuya, Yoshimura, Jin
Publikováno v:
SN Applied Sciences 4 (2022) 292
This study presents a long-term alternative formula for stock price variation described by a geometric Brownian motion on the basis of median instead of mean or expected values. The proposed method is motivated by the observation made in remote field
Externí odkaz:
http://arxiv.org/abs/1904.04422
Akademický článek
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Autor:
Cuaresma, Diane Carmeliza N., Gavina, Maica Krizna A., Rabajante, Jomar F., Tubay, Jerrold M., Okabe, Takuya, Morita, Satoru, Kobayashi, Kazuya, Mizumoto, Nobuaki, Ito, Hiromu, Yoshimura, Jin, Kakishima, Satoshi, Cooley, John R.
Publikováno v:
Scientific Reports; 11/7/2024, Vol. 14 Issue 1, p1-9, 9p
Autor:
Okabe, Takuya, Yoshimura, Jin
Publikováno v:
In Journal of Theoretical Biology 7 January 2021 508
Autor:
Morita, Satoru, Yoshimura, Jin
Publikováno v:
J. Phys. Soc. Jpn. 84, 034801 (2015)
It has not been known whether preferential dispersal is adaptive in fluctuating environments. We investigate the effect of preferential and random dispersals in bet-hedging systems by using a discrete stochastic metapopulation model, where each site
Externí odkaz:
http://arxiv.org/abs/1402.6373
Autor:
Morita, Satoru, Yoshimura, Jin
Publikováno v:
Phys. Rev. E 88, 052809 (2013)
We study a stochastic matrix model to understand the mechanics of risk-spreading (or bet-hedging) by dispersion. Such model has been mostly dealt numerically except for well-mixed case, so far. Here, we present an analytical result, which shows that
Externí odkaz:
http://arxiv.org/abs/1307.7903
Autor:
Morita, Satoru, Yoshimura, Jin
Publikováno v:
Physical Review E 86, 045102R (2012)
We study a stochastic linear discrete metapolulation model to understand the effect of risk spreading by dispersion. We calculate analytically the stable distribution of populations that live in different habitats. The result shows that the simultane
Externí odkaz:
http://arxiv.org/abs/1207.4618
Publikováno v:
Journal of the Physical Society of Japan, 77, 093801 1-4 (2008)
Perturbation experiments are carried out by contact process and its mean-field version. Here, the mortality rate is increased or decreased suddenly. It is known that the fluctuation enhancement (FE) occurs after the perturbation, where FE means a pop
Externí odkaz:
http://arxiv.org/abs/0807.0673