Results 21 to 30 of about 5,678,356 (168)
On the geometric structure of characteristic vector fields related with nonlinear equations of the Hamilton-Jacobi type [PDF]
Opuscula Mathematica, 2007 The Cartan-Monge geometric approach to the characteristics method for Hamilton-Jacobi type equations and nonlinear partial differential equations of higher orders is analyzed.
Natalia K. Prykarpatska +1 more
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The Optimal Strategy to Research Pension Funds in China Based on the Loss Function
Data Science Journal, 2007 Based on the theory of actuarial present value, a pension fund investment goal can be formulated as an objective function. The mean-variance model is extended by defining the objective loss function.
Jian-wei Gao +2 more
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The geometrical origin of dark energy
European Physical Journal C: Particles and Fields, 2020 The geometrical formulation of the quantum Hamilton–Jacobi theory shows that the quantum potential is never trivial, so that it plays the rôle of intrinsic energy. Such a key property selects the Wheeler–DeWitt (WDW) quantum potential $$Q[g_{jk}]$$ Q [ g
Alon E. Faraggi, Marco Matone
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On multi-field flows in gravity and holography
Journal of High Energy Physics, 2018 We perform a systematic analysis of flow-like solutions in theories of Einstein gravity coupled to multiple scalar fields, which arise as holographic RG flows as well as in the context of cosmological solutions driven by scalars.
Francesco Nitti +2 more
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Idempotent structures in optimization [PDF]
, 2001 Consider the set A = R ∪ {+∞} with the binary operations o1 = max and o2 = + and denote by An the set of vectors v = (v1,...,vn) with entries in A. Let the generalised sum u o1 v of two vectors denote the vector with entries uj o1 vj , and the product
Kolokoltsov, V. N. (Vasiliĭ Nikitich)
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Nonlinear Optimal Control for Stochastic Dynamical Systems
MathematicsThis paper presents a comprehensive framework addressing optimal nonlinear analysis and feedback control synthesis for nonlinear stochastic dynamical systems.
Manuel Lanchares, Wassim M. Haddad
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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 +2 more
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Kerr–Sen–Taub–NUT spacetime and circular geodesics
European Physical Journal C: Particles and Fields, 2020 We present a solution obeying classical equation of motion in the low energy limit of heterotic string theory. The solution represents a rotating mass with electric charge and gravitomagnetic monopole moment.
Haryanto M. Siahaan
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Hamilton-Jacobi formalism of tachyon inflation and cosmological perturbations
上海师范大学学报. 自然科学版, 2014 We study the cosmological inflation models driven by the rolling tachyon field which has a Born-Infeld-type action.We drive the Hamilton-Jacobi equation for the cosmological dynamics of tachyon inflation and the mode equations for the scalar and tensor ...
LIU Daojun
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Complexity, 2021 Considering the mind of rivalry between families, each family focuses not only on its own wealth but also on other families, especially neighbors. In this paper, we investigate the non-zero-sum mean-variance game between two families with a random ...
Wenjin Guan, Wei Yuan, Sheng Li
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