منابع مشابه
Dynamics with low-level fractionality
The notion of fractional dynamics is related to equations of motion with one or a few terms with derivatives of a fractional order. This type of equation appears in the description of chaotic dynamics, wave propagation in fractal media, and field theory. For the fractional linear oscillator the physical meaning of the derivative of order ao2 is dissipation. In systems with many spacially couple...
متن کاملOn fractionality of the path packing problem
Given an undirected graph G = (N,E), a subset T of its nodes and an undirected graph (T, S), G and (T, S) together are often called a network. A collection of paths in G whose end-pairs lie in S is called an integer multiflow. When these paths are allowed to have fractional weight, under the constraint that the total weight of the paths traversing a single edge does not exceed 1, we have a frac...
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Background: While anti-Müllerian hormone (AMH) level allows quantitative evaluation of ovarian reserve, its predictive value for live births following assisted reproductive technology cycles has remained controversial. The aim of the present study was to assess the importance of AMH in predicting live birth following intrauterine insemination (IUI) in the case of low or very lo...
متن کاملOn the fractionality of the path packing problem
In this paper, we study fractional multiflows in undirected graphs. A fractional multiflow in a graph G with a node subset T, called terminals, is a collection of weighted paths with ends in T such that the total weights of paths traversing each edge does not exceed 1. Well-known fractional path packing problem consists of maximizing the total weight of paths with ends in a subset S of TxT over...
متن کاملData Refinement with Low-Level Pointer Operations
We present a method for proving data refinement in the presence of low-level pointer operations, such as memory allocation and deallocation, and pointer arithmetic. Surprisingly, none of the existing methods for data refinement, including those specifically designed for pointers, are sound in the presence of low-level pointer operations. The reason is that the low-level pointer operations allow...
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ژورنال
عنوان ژورنال: Physica A: Statistical Mechanics and its Applications
سال: 2006
ISSN: 0378-4371
DOI: 10.1016/j.physa.2005.12.015