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pro vyhledávání: '"auxiliary variable"'
Two primary scalar auxiliary variable (SAV) approaches are widely applied for simulating gradient flow systems, i.e., the nonlinear energy-based approach and the Lagrange multiplier approach. The former guarantees unconditional energy stability throu
Externí odkaz:
http://arxiv.org/abs/2411.17403
Autor:
Ali, Hameed1, Asim, Syed Muhammad1, Ijaz, Muhammad2, Zaman, Tolga3 zamantolga@gmail.com, Iftikhar, Soofia4
Publikováno v:
Scientific Reports. 9/3/2024, Vol. 14 Issue 1, p1-18. 18p.
Autor:
Zhang, Jinpeng, Wang, Xiaoping
The scalar auxiliary variable (SAV) approach is a highly efficient method widely used for solving gradient flow systems. This approach offers several advantages, including linearity, unconditional energy stability, and ease of implementation. By intr
Externí odkaz:
http://arxiv.org/abs/2407.17258
Publikováno v:
In Heliyon 30 November 2024 10(22)
Autor:
Kwon, Sun-Beom, Prakash, Arun
Implicit-explicit (IMEX) time integration schemes are well suited for nonlinear structural dynamics because of their low computational cost and high accuracy. However, stability of IMEX schemes cannot be guaranteed for general nonlinear problems. In
Externí odkaz:
http://arxiv.org/abs/2406.02839
Scalar auxiliary variable (SAV) methods are a class of linear schemes for solving gradient flows that are known for the stability of a `modified' energy. In this paper, we propose an improved SAV (iSAV) scheme that not only retains the complete linea
Externí odkaz:
http://arxiv.org/abs/2405.03403
Autor:
Qi, Longzhao ⁎
Publikováno v:
In Communications in Nonlinear Science and Numerical Simulation March 2025 142
Autor:
Yuan, Wei, Wang, Guanyang
In sampling tasks, it is common for target distributions to be known up to a normalising constant. However, in many situations, evaluating even the unnormalised distribution can be costly or infeasible. This issue arises in scenarios such as sampling
Externí odkaz:
http://arxiv.org/abs/2406.05242
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