Results 31 to 40 of about 1,168,562 (287)

Variational Principle for Relative Tail Pressure

open access: yesEntropy, 2017
We introduce the relative tail pressure to establish a variational principle for continuous bundle random dynamical systems. We also show that the relative tail pressure is conserved by the principal extension.
Xianfeng Ma, Ercai Chen
doaj   +1 more source

A powerful and simple frequency formula to nonlinear fractal oscillators

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2021
In this work, a fractal nonlinear oscillator is successfully established by fractal derivative in a fractal space, and its variational principle is obtained by semi-inverse transform method.
Kang-Le Wang, Chun-Fu Wei
doaj   +1 more source

Generalized Ekeland’s variational principle with applications

open access: yesJournal of Inequalities and Applications, 2019
By using the concept of Γ-distance, we prove EVP (Ekeland’s variational principle) on quasi-F-metric (q-F-m) spaces. We apply EVP to get the existence of the solution to EP (equilibrium problem) in complete q-F-m spaces with Γ-distances.
Eshagh Hashemi   +2 more
doaj   +1 more source

Variational Principle in Hydrodynamics [PDF]

open access: yesProgress of Theoretical Physics, 1953
A canonical formalism in hydrodynamics -is developed by aid of Clebsch's transformation. If we consider the adiabatic process where the entropy is conserved, vortex motion is found to be closely connected with the entropy. Euler's hydrodynamical equation emerges fllctorised into four fundamental equations which are discussed from the thermodynamical ...
openaire   +1 more source

New Approximate Schemes for Generalized General Set-Valued Mixed Quasi Variational Inequalities [PDF]

open access: yes, 2008
In this paper, we suggest and consider a class of new three-step approximation schemes for generalized general set-valued mixed quasi variational inequalities.
Shi, Chaofeng
core   +6 more sources

Variational Principle of the Unstable Nonlinear Schrödinger Equation with Fractal Derivatives

open access: yesAxioms
The well-known nonlinear Schrödinger equation (NLSE) plays a crucial role in describing the temporal evolution of disturbances in marginally stable or unstable media. However, when the media is a fractal form, it becomes ineffective.
Kang-Jia Wang, Ming Li
doaj   +1 more source

Variational Estimation Methods for Sturm–Liouville Problems

open access: yesMathematics, 2022
In this paper, we are concerned with approach solutions for Sturm–Liouville problems (SLP) using variational problem (VP) formulation of regular SLP.
Elena Corina Cipu, Cosmin Dănuţ Barbu
doaj   +1 more source

Association Between Individualized Education for Kidney Replacement Therapy Modality Selection and Peritoneal Dialysis Initiation: A Cross‐Sectional Study

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Peritoneal dialysis (PD) is an established home‐based kidney replacement therapy (KRT), but its uptake remains low in Japan. We evaluated whether individualized education in a dedicated outpatient clinic was associated with the initiation of PD.
Yasuko Ito   +7 more
wiley   +1 more source

Subadditive Pre-Image Variational Principle for Bundle Random Dynamical Systems

open access: yesMathematics, 2020
A central role in the variational principle of the measure preserving transformations is played by the topological pressure. We introduce subadditive pre-image topological pressure and pre-image measure-theoretic entropy properly for the random bundle ...
Xianfeng Ma, Zhongyue Wang, Hailin Tan
doaj   +1 more source

Diversity and complexity in neural organoids

open access: yesFEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source

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