一类包含m—增生算子紧扰动的算子方程的可解性

设X为一致凸的Banach空间,T:X(?)D(T)→X为m—增生的且强增生的算子,T_0:X→X为线性紧算子。C:X→X为全连续算子,应用Leray-Schauder度理论,研究了算子方程Tx-T_0x Cx=f,f∈X的可解性。     

关于(S)_+型映射的一个区域不变定理及其应用

本文运用拓扑度方法,获得一个关于(S)_+型映射的区域不变定理。作为它的应用,本文得到了扩张映射的满值性,从而部分地回答了著名数学家L.Nirenberg提出的一个关于扩张映射满值性的公开问题。     

Contents and Author Index,Volume 19, 2012

The U.S. Congress, charged with overseeing U.S. nuclear weapons policy and programs, usually addresses such policies and programs through the annual authorization and appropriations process, focusing mostly on questions of how many and what types of weapons the United States should deploy, with little attention paid to questions about nuclear weapons strategy, doctrine, and policy. The oversight process has brought about some significant changes in the plans for U.S. nuclear weapons, including the elimination of funding for the Robust Nuclear Earth Penetrator study and the shift of that funding into a study of the Reliable Replacement Warhead. But with the focus on authorizations and appropriations, along with the divided jurisdiction over nuclear weapons policy and programs in congressional committees, Congress has not, either recently or during the Cold War and post–Cold War eras, conducted a more comprehensive review of U.S. nuclear weapons strategy, policy, or force structure. Changes in committee jurisdictions could affect the oversight process, but as long as nuclear weapons policy and programs remain a relatively low priority for most members of Congress, and the country at large, it is unlikely that Congress will pursue such a comprehensive debate.     

INDIA AND THE NEW LOOK OF U.S. NONPROLIFERATION POLICY

U.S. nuclear export policy has undergone major transformations since 1945, and the most recent change, as expressed in the July 18, 2005, India-U.S. Joint Statement, represents an especially significant shift in policy. The document reverses more than a quarter century of U.S. declaratory policy, suggesting that the current U.S. administration regards nuclear proliferation to be both inevitable and not necessarily a bad thing. This article investigates this policy shift, looking at the history of U.S. nuclear export policy and the potential ramifications of the new policy on the Treaty on the Non-Proliferation of Nuclear Weapons (NPT). The author also touches on the potential effects of the Joint Statement on Indian-Pakistani relations. Finally, it is suggested that it is not too late for India and the United States to change the new policy with more consideration for the NPT and the Nuclear Suppliers Group Initiative.     

ACHIEVING NUCLEAR BALANCE

One of the most important questions affecting U.S. national security is the future size of the U.S. nuclear stockpile. While there is clear consensus within the U.S. government on the need to reduce the size of the arsenal, there is none on the best path to achieve these cuts; on the type of deterrent necessary to deal with future threats; or on the size of the production complex needed to support that arsenal. Creating a strategic commission to review these questions, as contemplated in the Fiscal 2008 House Defense Authorization bill, is a necessary first step to establish a sensible nuclear policy. The Reliable Replacement Warhead, which has the potential to transform the complex while preserving the current moratorium on nuclear testing, is a program worth exploring further if it stays within congressionally mandated bounds. As Congress considers both programmatic and policy matters related to U.S. nuclear weapons, it is vital that we also renew and strengthen U.S. leadership on nuclear nonproliferation.     

美军新版《太空作战》联合条令的主要内容、变化及分析

2013年5月29日,美军参联会发布新版《太空作战》联合条令。文章对新版条令的主要内容进行了概括,对新、旧版本条令的差异进行了分析研究。     

The industrial structure of National Defence and transaction costs

A recent paper in Defence Economics suggests that “a single variable, the public opinion balance, ... when accompanied by a control variable measuring the proportion of responses in the ‘residuum’ (no opinion or keep the status quo), permits an accurate prediction of subsequent changes in the rate of change of U.S. defense outlays from the mid‐1960s through the 1980s” (Higgs and Kilduff, 1993, p. 227). In contrast, this comment provides evidence that since 1986 the Higgs‐Kilduff model frequently mispredicts the direction of U.S. defense spending. In addition, the average prediction error, and its variance, since 1986 consistently exceeds the average prediction error, and its variance, for the years prior to 1986.     

美国在非洲维和的经验教训及其启示

开展维和行动是实现联合国宗旨和维护世界安全与稳定的重要手段。作为联合国安理会五大常任理事国之一,美国是联合国完成维和任务不可或缺的,甚至具有决定性作用的国家。冷战时期美国的非洲维和行动在争吵和小心翼翼中进行,冷战后美国的非洲维和战略经历了积极主动向有选择地介入转变的过程,当前美国的非洲维和行动则是在崇尚自主的前提下推广美国特色的维和,以期最大限度地彰显美国实力、维护美国核心利益。审视美国非洲维和战略的演变,汲取足够的经验教训,有利于更好地根据世情和国情定位中国未来的维和战略。     

美国边防管理理念及其启示

美中两国作为世界上比较大的海陆兼备的国家,边防环境有着诸多相似之处.从边界管理外移、重视海防、实施差异化边界管理模式、注重科技防边等方面对美国边防管理理念进行分析,提出美国边防管理理念带给中国边防管理工作的启示：陆海并重,突出海防;区别对待;预防为主;科技管边。     

电子对抗指挥控制系统的行为功能需求

电子对抗指挥控制系统的军事需求分析是制约电子对抗指挥控制系统建设质量的关键。本文主要介绍了电子对抗指挥控制系统的行为功能需求。