Results 71 to 80 of about 40,007 (203)

First order flow equations for nonextremal black holes in AdS (super)gravity

Journal of High Energy Physics, 2017
We consider electrically charged static nonextremal black holes in d-dimensional Einstein-Maxwell-(A)dS gravity, whose horizon is a generic Einstein space in d − 2 dimensions.
Dietmar Klemm, Marco Rabbiosi
doaj   +1 more source

Symmetries of the Hamilton–Jacobi equation [PDF]

Journal of Mathematical Physics, 1977
We present a detailed discussion of the infinit esimal symmetries of the Hamilton-Jacobi equation (an arbitrary first order partial equation) Our presentation clucidates the role played by the characteristic system in determining the symmetries. We then specialize to the case of a free particle in one space and one time dimension, and study of local ...
Boyer, C.P., Kalnins, Ernie G.
openaire   +3 more sources

Surface Wave Solutions in 1D and 2D for the Broer–Kaup–Boussinesq–Kupershmidt System

Studies in Applied Mathematics, Volume 156, Issue 1, January 2026.
ABSTRACT The Broer–Kaup–Boussinesq–Kupershmidt (BKBK) system is a singular perturbation of the classical shallow water equations which modifies their transport velocity to depend on wave elevation slope. This modification introduces backward diffusion terms proportional to a real parameter κ$\kappa$.
Darryl D. Holm, Ruiao Hu, Hanchun Wang
wiley   +1 more source

Complex variational calculus with mean of (min, +)-analysis

Trends in Computational and Applied Mathematics, 2018
One develops a new mathematical tool, the complex (min, +)-analysis which permits to define a new variational calculus analogous to the classical one (Euler-Lagrange and Hamilton Jacobi equations), but which is well-suited for functions defined from C^n
Michel Gondran, Abdelouahab Kenoufi, Alexandre Gondran   +2 more
doaj   +1 more source

Bright and Dark Breathers on an Elliptic Wave in the Defocusing mKdV Equation

Studies in Applied Mathematics, Volume 156, Issue 1, January 2026.
ABSTRACT Breathers on an elliptic wave background consist of nonlinear superpositions of a soliton and a periodic wave, both traveling with different wave speeds and interacting periodically in the space‐time. For the defocusing modified Korteweg–de Vries equation, the construction of general breathers has been an open problem since the elliptic wave ...
Dmitry E. Pelinovsky, Rudi Weikard
wiley   +1 more source

Optimal Control in Financial Markets for the Uncertain Volatility Model

Mathematics
This paper generalizes the well-known Black–Scholes model, specifically the uncertain volatility model. To calculate the fair price range of a payment obligation, Hamilton–Jacobi–Bellman equations are derived and transformed into nonlinear heat equations
Grigory Belyavski, Natalia Danilova, Irina Zemlyakova, Gennady Ougolnitsky   +3 more
doaj   +1 more source

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., Carson L., RYUICHI NAKAYAMA, YUTAKA HOSOTANI   +3 more
core   +1 more source

Multiloitering Munition Cooperative Surrounding and Attack Method Based on Wolf Pack Algorithm

International Journal of Aerospace Engineering, Volume 2026, Issue 1, 2026.
Aiming at the optimization problem of multiloitering munitions cooperatively surrounding moving targets, this paper proposes a cooperative surrounding and attack method based on the wolf pack algorithm (WPA). Firstly, the relative kinematics model between the munitions and the target is established, and the cooperative surrounding task flow is analyzed
Zetian Zhang, Min Gao, Dan Fang, Chaowang Li, Mohammad Rezwan Habib   +4 more
wiley   +1 more source

Analytic solutions for Hamilton-Jacobi-Bellman equations

Electronic Journal of Differential Equations, 2017
Closed form solutions are found for a particular class of Hamilton-Jacobi-Bellman equations emerging from a differential game among firms competing over quantities in a simultaneous oligopoly framework.
Arsen Palestini
doaj  

Some Results on Bellman Equations of Optimal Production Control in a Stochastic Manufacturing System

Journal of Probability and Statistics, 2009
The paper studies the production inventory problem of minimizing the expected discounted present value of production cost control in a manufacturing system with degenerate stochastic demand. We establish the existence of a unique solution of the Hamilton-
Azizul Baten, Anton Abdulbasah Kamil
doaj   +1 more source