搜索结果: 1-15 共查到“统计学 existence”相关记录17条 . 查询时间(0.22 秒)
Discrete solitons and vortices in hexagonal and honeycomb lattices: Existence, stability, and dynamics
Dynamic lattice model lattice geometries nonlinear schrodinger equation
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2014/12/25
We consider a prototypical dynamical lattice model, namely, the discrete nonlinear Schrödinger equation on nonsquare lattice geometries. We present a systematic classification of the solutions th...
Existence, Stability, and Dynamics of Bright Vortices in the Cubic-Quintic Nonlinear Schr¨odinger Equation
Eddy current stable coupling two-dimensional whirlpool coupling whirlpool
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2014/12/24
We study the existence and azimuthal modulational stability of vortices in the two-dimensional (2D) cubic-quintic nonlinear Schr¨odinger (CQNLS) equation. We use a variational approximation (VA) based...
Existence and stability of multisite breathers in honeycomb and hexagonal lattices
Discrete respirator non-square klein Gordon coupling two vortex breath whirlpool hexagonal lattice
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2014/12/24
We study the existence and stability of multisite discrete breathers in two prototypical non-square Klein–Gordon lattices, namely a honeycomb and a hexagonal one. In the honeycomb case we consider six...
On the Existence of the MLE for a Directed Random Graph Network Model with Reciprocation
Algebraic statistics Dyadic independence Exponential random graph model
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2010/10/14
Holland and Leinhardt (1981) proposed a directed random graph model, the p1 model, to describe dyadic interactions in a social network. In previous work (Petrovic et al., 2010), we studied the algebra...
Existence of optimal policies in stochastic dynamic programing
Existence of optimal policies stochastic dynamic programing
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2009/9/24
Existence of optimal policies in stochastic dynamic programing。
Existence theorem and Wong-Zakai approximations for multivalued stochastic differential equations
Existence theorem Wong-Zakai approximations multivalued stochastic differential equations
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2009/9/22
We consider finite-dimensional multivalued stochastic
differential equations where the drift has a multivalued and monotone
term. Existence and approximation results are obtained by an existence
th...
Existence and non-existence of solutions of one-dimensional stochastic equations
Stochastic equations continuous local martingales non-existence local time
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2009/9/22
We consider the one-dimensional stochastic equation
for a continuous local martingale M with square variation {M) and
measurable drift and diffusion coefficients b and F. The main purpose
of this p...
On the existence of moments of stopped sums in Markov renewal theory
Markov random walk stopped sum Harris recurrence regeneration epoch drift condition
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2009/9/21
Let (M,),,,be an ergodic Markov chain on a general
state space X with stationary distribution n and g: X + [0, m) a meadef
surable function. D&e So (g) = 0 and S,(g) g (MI+). . .+g(M.)
for n 3 1. ...
The existence of the effective diffusivity tensor for diffusions with incompressible mixing drifts
Random field diffusions in random media mixing
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2009/9/21
In the present article we consider a model of motion of
a passive tracer particle under a random, non-steady (time dependent),
incompressible velocity flow in a medium with positive molecular diffus...
The existence of a steady state for perturbed symmetric random walk on a random lattice
Random field passive tracer random walk in random environment Einstein relation
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2009/9/21
In the present paper we consider a continuous time
random walk on an anisotropic random lattice. We show the existence
of a steady state 0, for the environment process (( (t)),ao corresponding
to t...
Existence and Regularity of Solutions to a Stochastic Burgers-Type Equation
Existence Regularity a Stochastic Burgers-Type Equation
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2009/9/17
Existence and Regularity of Solutions to a Stochastic Burgers-Type Equation。
The Stochastic Heat Equation with Fractional-Colored Noise:Existence of the Solution
Stochastic heat equation Gaussian noise stochastic integral fractional Brownian motion spatial covariance function
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2009/6/12
The Stochastic Heat Equation with Fractional-Colored Noise:Existence of the Solution.
Existence and spatial limit theorems for lattice and continuum particle systems
Interacting particle system functional central limit theorem point process
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2009/5/18
We give a general existence result for interacting particle systems with local interactions and bounded jump rates but noncompact state space at each site. We allow for jump events at a site that affe...
Existence and uniqueness of solutions for BSDEs with locally Lipschitz coefficient
backward stochastic dierential equations (BSDE) locally Lipschitz function
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2009/4/29
We deal with multidimensional backward stochastic differential equations (BSDE) with locally Lipschitz coefficient in both variables $ y,z $ and an only square integrable terminal data. Let $ L_N $ be...
On the Existence of Recurrent Extensions of Self-similar Markov Processes
self-similar semi-stable Lamperti transformation recurrent extension
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2009/4/23
Let X = (Xt)t ≥ 0 be a self-similar Markov process with values in the non-negative half-line, such that the state 0 is a trap. We present a necessary and sufficient condition for the existence of a se...