Zobrazeno 1 - 10
of 5 845
pro vyhledávání: '"Non smooth"'
Publikováno v:
AUT Journal of Mathematics and Computing, Vol 6, Iss 1, Pp 1-8 (2025)
In this paper, an efficient computational approach based on the fantastic Simpson integral formula is developed for the numerical solution of nonsmooth dynamical equations. In the proposed approach, at first, the integral reformulation of the target
Externí odkaz:
https://doaj.org/article/4b1704b5d732437596a35c9eeabfd9dc
Autor:
Alfred S. Carasso
Publikováno v:
Applied Mathematics in Science and Engineering, Vol 32, Iss 1 (2024)
An artificial example of a coupled system of three nonlinear partial differential equations generalizing 2D thermoelastic vibrations, is used to demonstrate the effectiveness, as well as the limitations, of a non iterative direct procedure in data as
Externí odkaz:
https://doaj.org/article/35059d070dcb42df883363d35aa92870
Publikováno v:
Mathematical Biosciences and Engineering, Vol 21, Iss 4, Pp 5068-5091 (2024)
In this paper, the dynamic behaviors and control strategies of a rumor propagation model are studied in multi-lingual environment. First, an S2E2I2R rumor propagation model is proposed, which incorporates a non-smooth inhibition mechanism. Meanwhile,
Externí odkaz:
https://doaj.org/article/c0b4617ef8734904916bb5ffcc9dfd2a
Publikováno v:
IEEE Open Journal of Signal Processing, Vol 5, Pp 213-228 (2024)
This paper investigates quantile regression in the presence of non-convex and non-smooth sparse penalties, such as the minimax concave penalty (MCP) and smoothly clipped absolute deviation (SCAD). The non-smooth and non-convex nature of these problem
Externí odkaz:
https://doaj.org/article/e3c9eda5f5d54cb5bc03b2470d113e67
Publikováno v:
Applied Sciences, Vol 14, Iss 23, p 11164 (2024)
Motor railway vehicles necessitate enhanced control of wheel-rail contact mechanics to ensure optimal adhesion. During train running, driving wheelsets exhibit torsional vibrations that compromise adhesion and potentially lead to axle damage. Consequ
Externí odkaz:
https://doaj.org/article/18578eae368346c3b2cc4a7c4f6eef20
Autor:
Martin Gugat
Publikováno v:
Machines, Vol 12, Iss 10, p 705 (2024)
The finite-time turnpike property describes the situation in an optimal control problem where an optimal trajectory reaches the desired state before the end of the time interval and remains there. We consider a machine learning problem with a neural
Externí odkaz:
https://doaj.org/article/56dc5563210d440a9a8b099ab7aa1ef6
Autor:
Akansha
Publikováno v:
Results in Applied Mathematics, Vol 22, Iss , Pp 100449- (2024)
The Chebyshev polynomial approximation is a useful tool to approximate smooth and non-smooth functions. In fact, for a sufficiently smooth function, the partial sum of Chebyshev series expansion provides optimal polynomial approximation. Moreover, be
Externí odkaz:
https://doaj.org/article/2fb668f42b2b4c7a99175a281ffd05fa
Publikováno v:
Jixie chuandong, Vol 47, Pp 94-100 (2023)
A simplified three-dimensional brake model with crater structure is established by using the finite element software Abaqus, and the influence of the depth, diameters, degrees and types of craters on the temperature and stress of the brake disc is in
Externí odkaz:
https://doaj.org/article/8ebbf683cad140a18dd7181c332f0c7c
Publikováno v:
Comptes Rendus. Mécanique, Vol , Iss , Pp 1-16 (2023)
We address the numerical solution of the Dirichlet problem for the two-dimensional elliptic Monge–Ampère equation using a least-squares/relaxation approach. The relaxation algorithm allows the decoupling of the differential operators from the nonl
Externí odkaz:
https://doaj.org/article/7ce8052ed6ed45c3a6cd24f964a943d5
Autor:
Jinming Kou, Qiannan Lou, Yunqing Gu, Junjun Zhang, Chengqi Mou, Jiayun Yu, Youting Ding, Chengbo Xu
Publikováno v:
Lubricants, Vol 12, Iss 10, p 334 (2024)
To enhance the service life of shipping equipment and minimize surface wear, this study employs biomimetic principles, integrating fitted structures with jet dynamics to model three configurations: non-smooth structures, single jet structures, and no
Externí odkaz:
https://doaj.org/article/7e5ec32c80554d39afbbd708234deded