Results 41 to 50 of about 44,878 (209)
The Hamilton-Jacobi Equations for Strings and p-Branes
, 1999 Simple derivation of the Hamilton-Jacobi equation for bosonic strings and p-branes is given. The motion of classical strings and p-branes is described by two and p+1 local fields, respectively.
Aurilia A. +3 more
core +1 more source
Optimal Propagating Fronts Using Hamilton-Jacobi Equations
Mathematics, 2019 The optimal handling of level sets associated to the solution of Hamilton-Jacobi equations such as the normal flow equation is investigated. The goal is to find the normal velocity minimizing a suitable cost functional that accounts for a desired ...
Angelo Alessandri +3 more
doaj +1 more source
Portfolio Optimization for Pension Purposes: Literature Review
Journal of Economic Surveys, EarlyView.ABSTRACT This systematic review identifies persistent challenges and gaps in the literature on pension portfolio optimization models. We searched, selected, and critically analyzed 82 articles from three major academic databases published over the past decade to investigate the barriers to the effective implementation of these models.
Leonardo Moreira +2 more
wiley +1 more source
Solution Hamilton-Jacobi equation for oscillator Caldirola-Kanai
Revista Científica, 2016 The method allows Hamilton-Jacobi explicitly determine the generating function from which is possible to derive a transformation that makes soluble Hamilton's equations.
LEONARDO PASTRANA ARTEAGA +1 more
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The Hamilton-Jacobi equation and holographic renormalization group flows on sphere
Journal of High Energy Physics, 2020 We study the Hamilton-Jacobi formulation of effective mechanical actions associated with holographic renormalization group flows when the field theory is put on the sphere and mass terms are turned on.
Nakwoo Kim, Se-Jin Kim
doaj +1 more source
Media amplification under the floodlight: Contextualizing 20 years of US risk news
Risk Analysis, EarlyView.Abstract This paper addresses the question of identifying and distinguishing risk amplification incidents and patterns in the news media. To meet this objective, our study incorporates a novel “floodlight” approach utilizing the Society for Risk Analysis Glossary in conjunction with topic modeling and time‐series analysis, to investigate risk‐focused ...
Cormac Bryce +3 more
wiley +1 more source
Entropy, 2016 The present work deals with the semi-classical tunnelling approach and the Hamilton–Jacobi method to study Hawking radiation from the dynamical horizon of both the homogeneous Friedmann–Robertson–Walker (FRW) model and the inhomogeneous Lemaitre–Tolman ...
Subenoy Chakraborty +2 more
doaj +1 more source
On classical solutions and canonical transformations for Hamilton–Jacobi–Bellman equations
Bulletin of the London Mathematical Society, EarlyView.Abstract In this note, we show how canonical transformations reveal hidden convexity properties for deterministic optimal control problems, which in turn result in global existence of Cloc1,1$C^{1,1}_{loc}$ solutions to first‐order Hamilton–Jacobi–Bellman equations.
Mohit Bansil, Alpár R. Mészáros
wiley +1 more source
Reinforcement learning for optimal control of stochastic nonlinear systems
AIChE Journal, Volume 71, Issue 7, July 2025.Abstract A reinforcement learning (RL) approach is developed in this work for nonlinear systems under stochastic uncertainty. A stochastic control Lyapunov function (SCLF) candidate is first constructed using neural networks (NNs) as an approximator to the value function, and then a control policy designed using this SCLF is developed to ensure the ...
Xinji Zhu, Yujia Wang, Zhe Wu
wiley +1 more source
The Quantum Effective Mass Hamilton-Jacobi Problem
, 2010 In this article, the quantum Hamilton- Jacobi theory based on the position dependent mass model is studied. Two effective mass functions having different singularity structures are used to examine the Morse and Poschl- Teller potentials.
Ablowitz M J +25 more
core +1 more source