Zobrazeno 1 - 10
of 55
pro vyhledávání: '"Chien Chang Yen"'
Autor:
Gopalakrishnan Karnan, Chien-Chang Yen
Publikováno v:
Fractal and Fractional, Vol 7, Iss 3, p 263 (2023)
The Caputo fractional α-derivative, 0<α<1, for non-smooth functions with 1+α regularity is calculated by numerical computation. Let I be an interval and Dα(I) be the set of all functions f(x) which satisfy f(x)=f(c)+f′(c)(x−a)+gc(x)(x−c)|(x
Externí odkaz:
https://doaj.org/article/d8b5a4cc50284c85a35c6b87be5f322d
Publikováno v:
PLoS ONE, Vol 17, Iss 5 (2022)
We take the stock prices as a dynamic system and characterize its movements by a newly derived dynamic model, called the new Price Reversion Model (nPRM), for which the solution is derived and carefully analyzed under different circumstances. We also
Externí odkaz:
https://doaj.org/article/4def603e97144c0ba6f26c69bc1075a9
Publikováno v:
The Astrophysical Journal. 935:95
C-type shocks are believed to be ubiquitous in turbulent molecular clouds thanks to ambipolar diffusion. We investigate whether the drag instability in 1D isothermal C-shocks, inferred from the local linear theory of Gu & Chen, can appear in nonideal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e610a880f12736b6ab7d42100fb6461a
https://doi.org/10.3847/1538-4357/ac7de9
https://doi.org/10.3847/1538-4357/ac7de9
Autor:
Chin-Ping Hu, Lupin Chun-Che Lin, Kuo-Chuan Pan, Kwan-Lok Li, Chien-Chang Yen, Albert K. H. Kong, C. Y. Hui
Publikováno v:
The Astrophysical Journal. 935:127
We analyze the gravitational wave signals with a model-independent time-frequency analysis, which is improved from the Hilbert-Huang transform (HHT) and optimized for characterizing the frequency variability on the time-frequency map. Except for the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1a298d76e13bdecd84b22c7090acc473
https://doi.org/10.3847/1538-4357/ac8165
https://doi.org/10.3847/1538-4357/ac8165
Publikováno v:
PloS one. 17(5)
We take the stock prices as a dynamic system and characterize its movements by a newly derived dynamic model, called the new Price Reversion Model (nPRM), for which the solution is derived and carefully analyzed under different circumstances. We also
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f94f6715fa6becffb2a50330eda74be8
https://pubmed.ncbi.nlm.nih.gov/35499989
https://pubmed.ncbi.nlm.nih.gov/35499989
Publikováno v:
Journal of Applied Mathematics, Vol 2014 (2014)
This paper proposes a postverification method (PVM) for solving forced Duffing oscillator problems without prescribed periods. Comprising a postverification procedure and small random perturbation, the proposed PVM improves the sensitivity of the con
Externí odkaz:
https://doaj.org/article/31290aa31c43466ba5a0457c5f0e50a9
Autor:
Chien-Chang Yen
Publikováno v:
Journal of Applied Mathematics, Vol 2014 (2014)
This study presents a numerical convolution representation of a potential induced from a disk of surface density, which has often been investigated in the center region of galaxies. The advantage of this representation is to release the softening len
Externí odkaz:
https://doaj.org/article/b91b8d0461654001851587b49969d07a
Self-gravitational Force Calculation of Second Order Accuracy Using Multigrid Method on Nested Grids
Autor:
Chien-Chang Yen, Hsiang-Hsu Wang
We present a simple and effective multigrid-based Poisson solver of second-order accuracy in both gravitational potential and forces in terms of the one, two and infinity norms. The method is especially suitable for numerical simulations using nested
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::968f4f7c18e9d1e621767b235aabe275
http://arxiv.org/abs/2001.02327
http://arxiv.org/abs/2001.02327
Publikováno v:
The Astrophysical Journal Supplement Series. 252:14
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ad2f60df0160cbbd5cf8c32e46ddfed9
https://doi.org/10.3847/1538-4365/abca97
https://doi.org/10.3847/1538-4365/abca97
Publikováno v:
SIAM Journal on Mathematical Analysis. 48:4268-4310
The hydrodynamic escape problem (HEP), which is characterized by a free boundary value problem of Euler equation with gravity and heat, is crucial for investigating the evolution of planetary atmospheres. In this paper, the global existence of transo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9afdb2250e4985a39bdb6c07cc6464e2
https://doi.org/10.1137/16m1067561
https://doi.org/10.1137/16m1067561