Results 61 to 70 of about 382,839 (289)

Exact Response Theory for Delay Equations

Entropy
The exact response theory, also known as Transient Time Correlation Function formalism, is a powerful method concerning how observables respond to a given perturbation of the dynamics of the systems of interest, and it extends linear response theory to ...
Federico Gollinucci, Enrico Ortu, Lamberto Rondoni   +2 more
doaj   +1 more source

On the action principle for a system of differential equations

, 2007
We consider the problem of constructing an action functional for physical systems whose classical equations of motion cannot be directly identified with Euler-Lagrange equations for an action principle.
Banerjee R, D M Gitman, Darboux G, Dodonov V V Man'ko V I Skarzhinsky V D, Havas P, Sarlet W, V G Kupriyanov, von Helmholtz H   +7 more
core   +1 more source

A Perspective on Interactive Theorem Provers in Physics

Advanced Science, EarlyView.
Into an interactive theorem provers (ITPs), one can write mathematical definitions, theorems and proofs, and the correctness of those results is automatically checked. This perspective goes over the best usage of ITPs within physics and motivates the open‐source community run project PhysLean, the aim of which is to be a library for digitalized physics
Joseph Tooby‐Smith
wiley   +1 more source

Modelado y simulación de sistemas caóticos a través de péndulos acoplados usando SimMechanics de Simulink

Ciencia e Ingeniería, 2017
En este artículo se estudia el caso de un péndulo doble y uno triple, como ejemplos simples de un sistema físico que puede exhibir un comportamiento caótico.
Sergio Velásquez, Ronny Velásquez
doaj  

Solar twins in Gaia DR3 GSP-Spec

Astronomy & Astrophysics
Context. Solar twins, stars whose stellar parameters (effective temperature, Teff; surface gravity, log g; and metallicity, [M/H]) are very close to those of the Sun, offer a unique opportunity to investigate Galactic archaeology with very high accuracy ...
Taniguchi Daisuke, de Laverny Patrick, Recio-Blanco Alejandra, Tsujimoto Takuji, Palicio Pedro A.   +4 more
doaj   +3 more sources

Parameterization invariance and shape equations of elastic axisymmetric vesicles

, 1994
The issue of different parameterizations of the axisymmetric vesicle shape addressed by Hu Jian-Guo and Ou-Yang Zhong-Can [ Phys.Rev. E {\bf 47} (1993) 461 ] is reassesed, especially as it transpires through the corresponding Euler - Lagrange equations ...
A.R. Forsyth, B. Žekš, F. Jülicher, H.J. Deuling, Hiroyoshi Naito, Hu Jian Guo, R. Podgornik, S. Svetina, S. Svetina, U. Seifert, W. Helfrich, Wei Mou Zheng   +11 more
core   +1 more source

Dynamic Shifts in ER–Plasma Membrane Junctions Signaling Define Pro‐Metastatic N‐Glycosylation and Predict Prostate Cancer Progression

Advanced Science, EarlyView.
Prostate cancer remains a leading cause of male cancer death, yet screening cannot reliably identify aggressive disease, underscoring the need for tissue biomarkers. It is shown that primary tumors increase ER–plasma membrane junction signaling via STIM1/ORP5, whereas metastasis features their loss, Golgi dispersal, and rapid conversion of high‐mannose
Amanda J. Macke, Tania Kamal, Taylor E. Divita, Artem N. Pachikov, Chad A. LaGrange, Rajesh Ravichandran, Martha Morton, Robert Powers, Haowen Qiu, Jean‐Jack M. Riethoven, Colm Morrissey, Melinda Wojtkiewicz, Rebekah L. Gundry, Carol A. Casey, Armen Petrosyan   +14 more
wiley   +1 more source

Low‐Power Control Of Resistance Switching Transitions in First‐Order Memristors

Advanced Electronic Materials, EarlyView.
Joule losses are a serious concern in modern integrated circuit design. In this regard, minimizing the energy necessary for programming memristors should be handled with care. This manuscript presents an optimal control framework, allowing to derive energy‐efficient programming voltage protocols for resistance switching devices. Following this approach,
Valeriy A. Slipko, Alon Ascoli, Fernando Corinto, Yuriy V. Pershin   +3 more
wiley   +1 more source

Relativistic Lagrange formulation [PDF]

Journal of Mathematical Physics, 2001
It is well-known that the equations for a simple fluid can be cast into what is called their Lagrange formulation. We introduce a notion of a generalized Lagrange formulation, which is applicable to a wide variety of systems of partial differential equations. These include numerous systems of physical interest, in particular, those for various material
Geroch, Robert, Nagy, G., Reula, O.
openaire   +3 more sources

Lagrange structure and quantization

, 2005
A path-integral quantization method is proposed for dynamical systems whose classical equations of motion do \textit{not} necessarily follow from the action principle.
A.S. Cattaneo, Alexey A Sharapov, F. Akman, G. Barnich, I. Batalin, I.A. Batalin, J. Stasheff, J.-L. Koszul, L. Baulieu, M. Henneaux, N.J.M. Woodhouse, Peter O Kazinski, S.L. Lyakhovich, Simon L Lyakhovich, Th. Voronov, V. Hinich   +15 more
core   +1 more source