Results 51 to 60 of about 9,739 (169)

The companion equations and the moyal-nahm equations [PDF]

open access: yes, 2000
The first part of this thesis is concerned with the companion equations. These are equations of motion for the companion Lagrangian which is proposed to be the Lagrangian for a field theory associated with strings and branes, similar to the Klein-Gordon ...
Baker, Linda Margaret
core  

Quantitative stochastic homogenization of viscous Hamilton-Jacobi equations

open access: yes, 2015
We prove explicit estimates for the error in random homogenization of degenerate, second-order Hamilton-Jacobi equations, assuming the coefficients satisfy a finite range of dependence.
Cardaliaguet, Pierre   +2 more
core   +1 more source

Key Technical Fields and Future Outlooks of Space Manipulators: A Survey

open access: yesSmartBot, EarlyView.
This paper systematically reviews the technological development of space manipulators, emphasizing the unique challenges posed by space environments. It examines four areas: structural design, modeling, planning, and control, while introducing typical ground test platforms.
Gang Chen   +12 more
wiley   +1 more source

Hamiltonian approach to GR – Part 2: covariant theory of quantum gravity

open access: yesEuropean Physical Journal C: Particles and Fields, 2017
A non-perturbative quantum field theory of General Relativity is presented which leads to a new realization of the theory of covariant quantum gravity (CQG-theory). The treatment is founded on the recently identified Hamiltonian structure associated with
Claudio Cremaschini, Massimo Tessarotto
doaj   +1 more source

Externality and Hamilton-Jacobi equations

open access: yes, 2004
The relationship between optimal control problems and Hamilton-Jacobi-Bellman equations is well known [9]. In fact the value function, defined as the infimum of the cost functional, satisfies in the viscosity sense an appropriate Hamilton-Jacobi-Bellman ...
LORETI, Paola   +1 more
core   +1 more source

Reinforcement Learning for Jump‐Diffusions, With Financial Applications

open access: yesMathematical Finance, EarlyView.
ABSTRACT We study continuous‐time reinforcement learning (RL) for stochastic control in which system dynamics are governed by jump‐diffusion processes. We formulate an entropy‐regularized exploratory control problem with stochastic policies to capture the exploration–exploitation balance essential for RL.
Xuefeng Gao, Lingfei Li, Xun Yu Zhou
wiley   +1 more source

Equilibrium Reward for Liquidity Providers in Automated Market Makers

open access: yesMathematical Finance, EarlyView.
ABSTRACT We find the equilibrium contract that an automated market maker (AMM) offers to their strategic liquidity providers (LPs) in order to maximize the order flow that gets processed by the venue. Our model is formulated as a leader–follower stochastic game, where the venue is the leader and a representative LP is the follower.
Alif Aqsha   +2 more
wiley   +1 more source

Random Carbon Tax Policy and Investment Into Emission Abatement Technologies

open access: yesMathematical Finance, EarlyView.
ABSTRACT We analyze the problem of a profit‐maximizing electricity producer, subject to carbon taxes, who decides on investments into CO2$\rm CO_2$ abatement technologies. We assume that the carbon tax policy is random and that the investment in the abatement technology is divisible, irreversible, and subject to transaction costs.
Katia Colaneri   +2 more
wiley   +1 more source

Spinning black holes with a separable Hamilton–Jacobi equation from a modified Newman–Janis algorithm

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
Obtaining solutions of the Einstein field equations describing spinning compact bodies is typically challenging. The Newman–Janis algorithm provides a procedure to obtain rotating spacetimes from a static, spherically symmetric, seed metric.
Haroldo C. D. Lima Junior   +3 more
doaj   +1 more source

Lagrangian submanifolds and the Hamilton–Jacobi equation [PDF]

open access: yesMonatshefte für Mathematik, 2013
The authors present a generalized version of the geometric Hamilton-Jacobi theory in terms of certain Lagrangian submanifolds of a symplectic manifold. This allows them to give a unified presentation of Hamilton-Jacobi equations for systems with both holonomic and linear nonholonomic constraints. The formulation treats both the time-independent and the
María Barbero-Liñán   +2 more
openaire   +2 more sources

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