The scheme is proven to be forward secure, which is based on the abstrusity of discrete logarithm and square rood modulo composite number problem.

新方案的特點(diǎn)是將當(dāng)前密鑰隱藏在簽名中，僅使用與當(dāng)前密鑰有關(guān)的信息對消息進(jìn)行簽名黄色网站——18禁，與后繼密鑰無關(guān)激情开心网站国产，簽名的前向安全性基于離散對數(shù)和模合數(shù)平方根問題的難解性日韩欧美精品视频一区二区在线看。

The discrete variable action space enables the complex decision-making problem to fall into several simple and independent sub problems, and each of them can be resolved via existing theories.

離散變量動作空間能夠?qū)?fù)雜的決策問題分解為多個獨(dú)立的子問題91嫩草国产线永久免费，且每個子問題都有相應(yīng)的理論來解決日韩黄色网站AV。

In the thesis , firstly the problem of static output feedback H∞control was explored for discrete time singular systems. Based on the generalized Riccati inequality and linear matrix inequality, necessary and sufficient conditions were obtained for the existence of static output feedback H∞controllers, which guarantees that the resulting closed-loop system is admissible with its transfer function matrix satisfying H∞norm constraint.

本文首先利用線性矩陣不等式和廣義Riccati不等式，給出離散廣義系統(tǒng)中存在靜態(tài)輸出反饋H∞控制器1024视频在线观看精品，使得閉環(huán)系統(tǒng)是容許的且其傳遞函數(shù)矩陣滿足H∞范數(shù)約束的充要條件真人交。

To price the continuously sampled arithmetic average Asian option, an implicit upwind difference scheme is constructed based on the final boundary value problem of partial differential equation, which is satifiable to the option pricing problem. Then the unique existence and unconditional stability of the difference solution are demonstrated and the error estimate is given under the discrete L2 norm.

研究連續(xù)取樣的算術(shù)平均亞式期權(quán)定價(jià)問題的差分方法，根據(jù)問題所滿足的偏微分方程終邊值問題艹你综合，構(gòu)造出一種隱式的迎風(fēng)差分格式午夜黄色网a，論證了差分解的惟一存在性和絕對穩(wěn)定性，并給出差分解在離散L2范數(shù)下的誤差估計(jì)黄色网站一级A片按摩。

Then a filled function method for the integer programming problem is proposed,which tries to find a better discrete local minimal solution of the problem by minimizing a filled function.

該方法通過尋找填充函數(shù)的離散局部極小解以期找到整數(shù)規(guī)劃問題的比當(dāng)前離散局部極小解好的解国产孕妇挤奶在线观看电影网站视频。該文的算法是直接法，數(shù)值試驗(yàn)表明算法是有效的九九视频免费精品6。

Firstly, the eigenvalue problem of a class of second order elliptic equation with critical potential and indefinite weights is considered. Then, using critical point theory, Trudinger-Moser inequality and the properties of the first eigenvalue, we prove the existence of a nontrivial solution for a class of nonlinear elliptic with critical potentialand indefinite weights in R~2. Secondly, we prove the existence of nontrivial solutions for a class of subcritical and critical elliptic systems with indefinite part in R~2 byusing a generalized linking theorem, Trudinger-Moser inequality and concentration-compactness principle.5. The existence of at least three weak solutions for discrete boundary value problem is established by using a three critical point theorem introduced by Ricceri.

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The quadratic optimal control problem of delay discrete-time linear system is proposed with quadratic performance index. It is transformed intoanother problem by using the Principle of Optimality. The direct expressions of theoptimal control sequence and performance index sequence are given by mathematicalinduction.

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In order to improve the security, a signature scheme based on two hard problem assumptions is proposed. The security of the scheme is based on the difficulties of simultaneously solving the elliptic curve and quadratic residue. A attacker can't forge the signature of messages even if a attacker can solve theelliptic curve discrete logarithm problems or quadratic residue problem in the scheme.

為了提高簽名的安全性，本文對Wang等人提出的簽名方案進(jìn)行改進(jìn)无遮挡裸体免费视频麻豆，提出了一個基于橢圓曲線離散對數(shù)問題和二次剩余問題的數(shù)字簽名方案色色色色色色色色色色色色色色色综合，并對該方案的安全性進(jìn)行分析，指出在橢圓曲線離散對數(shù)問題或二次剩余問題可解的情況下91精品视频在线观看免费视频，攻擊者也無法偽造消息的簽名自拍超碰。

First, the discrete method of separation of variables is applied to the numerical solution of a model problem-the interface problem.

本文首先以一個模型問題——帶內(nèi)界面的二階橢圓型方程為例，提出了一種求解帶奇性的橢圓型方程的離散分離變量方法国产美女一级视频，并把這種方法用于復(fù)合彈性材料問題的求解国产在线视频你懂。

By introducing a slack variable, the stabilization problem of discrete T-S fuzzy systems is converted into an LMI feasibility problem, and an LMI based design method for output feedback H(subscript ∞) controller is presented.

通過引入松弛變量，將離散T-S模糊系統(tǒng)的輸出反饋鎮(zhèn)定問題歸結(jié)為求解一組線性矩陣不等式亲近相奷中文字幕，進(jìn)而給出基于LMI的輸出反饋H控制器的設(shè)計(jì)方法影音先锋av资源网址。