搜索结果: 61-75 共查到“知识库 离散数学”相关记录173条 . 查询时间(7.13 秒)
Discrete breathers on symmetry-determined invariant manifolds for scalar models on the plane square lattice
Discrete breathers symmetry-determined invariant manifolds scalar models plane square lattice
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2011/7/5
A group-theoretical approach for studying localized periodic and quasiperiodic vibrations in 2D
and 3D lattice dynamical models is developed. This approach is demonstrated for the scalar mod-
els on...
On non-multiaffine consistent around the cube lattice equations
Integrable lattice equations Yang-Baxter maps Consistency around the cube
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2011/7/5
We show that integrable involutive maps, due to the fact they admit three integrals in separated
form, can give rise to equations which are consistent around the cube and which are not in the multiaf...
Riemann--Hilbert problems, matrix orthogonal polynomials and discrete matrix equations with singularity confinement
Riemann Hilbert matrix orthogonal polynomials discrete matrix equations singularity confinement
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2011/7/6
In this paper matrix orthogonal polynomials in the real line are described in terms of a Riemann--Hilbert problem. This approach provides an easy derivation of discrete equations for the corresponding...
波浪场中物质输移离散系数的理论分析
离散系数 纵向离散 非恒定流 波浪
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2014/3/6
海岸水域波浪引起的物质输移扩散存在着不同于水流引起的物质 输移扩散的特征. 通过解析的方法对垂向扩散方程进行求解, 推导出波浪和潮流共同作 用下的海岸水域物质输移离散系数的理论公式. 分析中将总的离散系数分为潮流、质量输移 流、纯波浪波动作用以及潮流与质量输移流、潮流与波浪波动、质量输移流与波浪波动的相 互作用6部分, 通过分析各组成部分特征, 得出海岸水域物质输移中波浪所产生的离散效应 主要是质...
High order explicit symplectic integrators for the Discrete Non Linear Schrödinger equation
High order explicit symplectic Discrete Non Linear Schrö dinger equation
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2011/3/2
We propose a family of reliable symplectic integrators adapted to the Discrete Non–Linear Schr¨odinger equation; based on an idea of Yoshida [12] we can construct high order numerical schemes, that re...
$M$-Shellability of Discrete Polymatroids
Discrete polymatroid h-vector Shellability
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2011/1/18
In this note we show that every discrete polymatroid is M-shellable.This gives, in a partial case, a positive answer to a conjecture of Chari and improves a recent result of Schweig where he proved th...
Second order discretization of Backward SDEs
Backward SDEs Second order Numerical analysis
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2011/2/28
In [5] the authors suggested a new algorithm for the numerical approximation of a BSDE by merging the cubature method with the first order discretization developed by Bouchard and Touzi [3] and Zhang ...
On the Capacity of the Discrete Memoryless Broadcast Channel with Feedback
Capacity Discrete Memoryless Broadcast Feedback
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2011/3/1
A coding scheme for the discrete memoryless broadcast channel with {noiseless, noisy, generalized} feedback is proposed, and the associated achievable region derived.
Sieve in expansion
Sieve expansion
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2011/1/21
This report presents recent works extending sieve methods, from their classical setting, to
new situations characterized by the targeting of sets with exponential growth, arising often
from discrete...
Uniqueness of the solution to inverse scattering problem with scattering data at a fixed direction of the incident wave
inverse scattering non-overdetermined data fixed direction of the incident wave scattering data
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2011/1/21
Let q(x) be real-valued compactly supported sufficiently smooth func-tion. It is proved that the scattering data A( , 0, k) 8 2 S2, 8k > 0, determine q uniquely. Here 0 2 S2 is a fixed direction of...
Electromagnetic wave scattering by a thin layer in which many small particles are embedded
electromagnetic waves wave scattering by many small bodies
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2011/1/21
Scattering of electromagnetic (EM) waves by many small particles (bodies), embedded in a thin layer, is studied. Physical properties of the particles are described by their boundary impedances.
Information Geometric Modeling of Scattering Induced Quantum Entanglement
Information Geometric Modeling Quantum Entanglement
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2011/2/24
We present an information geometric analysis of quantum entanglement generated by an s-wave scattering event between two minimum uncertainty Gaussian wave packets.
The Throughput Cost of Information-Theoretic Security in Decentralized Wireless Networks
Throughput Cost of Information-Theoretic Security Decentralized Wireless Networks
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2011/2/24
This paper studies the throughput of large-scale decentralized wireless networks with informationtheoretic security constraints.
Scattering by many small inhomogeneities and applications
wave scattering by small inhomogeneities metamaterials nanotechnology
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2011/1/21
Many-body quantum-mechanical scattering problem is solved asymptotically when the size of the scatterers (inhomogeneities) tends to zero and their number tends to infinity.
High order explicit symplectic integrators for the Discrete Non Linear Schrödinger equation
High order explicit symplectic integrators Discrete Non Linear Schrö dinger equation
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2010/12/28
We propose a family of reliable symplectic integrators adapted to the Discrete Non–Linear Schr¨odinger equation; based on an idea of Yoshida [12]we can construct high order numerical schemes, that res...