Towards a unified recurrent neural network theory: The uniformly pseudo-projection-anti-monotone net

In the past decades, various neural network models have been developed for modeling the behavior of human brain or performing problem-solving through simulating the behavior of human brain. The recurrent neural networks are the type of neural networks to model or simulate associative memory behavior of human being. A recurrent neural network (RNN) can be generally formalized as a dynamic system associated with two fundamental operators: one is the nonlinear activation operator deduced from the input-output properties of the involved neurons, and the other is the synaptic connections (a matrix) among the neurons. Through carefully examining properties of various activation functions used, we introduce a novel type of monotone operators, the uniformly pseudo-projectionanti-monotone (UPPAM) operators, to unify the various RNN models appeared in the literature. We develop a unified encoding and stability theory for the UPPAM network model when the time is discrete. The established model and theory not only unify but also jointly generalize the most known results of RNNs. The approach has lunched a visible step towards establishment of a unified mathematical theory of recurrent neural networks.     

拟必然分析概述

经典的几乎必然分析研究的是随机变量和或机过程除去概率为零的集合以外的性质，容度的概念起源于电学，其严格的数学理论由Ｎ．Ｗｉｅｎｅｒ及Ｇ．Ｃｈｏｑｕｅｔ所发展，８０年代Ｐ．Ｍａｌｌｉａｖｉｎ建立了Ｗｉｅｎｅｒ空间上的非线性容度理论，拟必然分析便是研究除去零容集以外成立的性质的理论，本文概述了了这一理论的发展和现状。     

A note on a paper “A regularization method for the proximal point algorithm”

In this note, a small gap is corrected in the proof of H.K. Xu [Theorem 3.3, A regularization method for the proximal point algorithm, J. Glob. Optim. 36, 115–125 (2006)], and some strict restriction is removed also.      

一类非线性算子方程解的Mann迭代序列的收敛性

利用Mann迭代技巧,讨论了不具有连续性和紧性条件的非线性算子方程A（x,x）＋u0=Bx解的存在唯一性,并给出了迭代序列收敛于解的误差估计,所得结果是某些已知结果本质改进和推广．     

一类变分不等式的解的存在性定理

给出了一个与Ｐ拉普拉斯算子有关的变分不等式的解的存在性定理     

广义非线性隐拟补问题解的有界性及扰动迭代算法

讨论了一类广义非线性隐补问题解的有界性及扰动迭代算法，给出一一些新的结果，推广了Ｉｓａｃ和Ｎｏｏｒ等人近期的一些结果。     

非线性准静止超长波的低频振荡及混沌特性

利用混沌动力学的分析手段，对一个包含了地形、热力强迫以及耗散作用的准静止超长波动力系统的行为进行了初步探讨．结果表明，超长波平衡态的建立与加热场的结构有关．方程的定性分析及数值计算结果均表明，当超长波表现为周期行为时，其周期约为３０～４０ｄ，与低频振荡的频率相当．另外，还给出了一个与地形、耗散以及加热等因子有关的判据Ｃｒ，当Ｃｒ较小时系统出现周期态，而当Ｃｒ较大时系统出现混沌特征．     

Locale的拟紧性

在ｌｏｃａｌｅ范畴上建立并详细讨论了拟紧性及遗传紧（拟紧）性，并且给出了开核映射（ｏｐｅｎｎｕｃｌｅｕｓ）与闭核映射（ｃｌｏｓｅｄｎｕｃｌｅｕｓ）上确界一个完满刻划。     

带扰动的极大单调算子的映射定理

研究了抽象空间中以原点为心的球和极大单调算子扰动后的值域的关系，把Ｍｏｒａｌｅｓ关于增生算子的某些结果推广和改进为关于单调算子的有关结果．     

亚单调收缩空间

介绍了一种用单调覆盖性质来刻划的拓扑空间，它介于亚紧空间与可数正紧空间之间，具有良好的拓扑性质。本文给出了它的等价刻划，讨论了它的遗传性、可乘性、映时保持性及它与其它覆盖性质的关系。