Operators and Things
Operators and Things

Author: Barbara Pseud O'Brien

Publisher: Hassell Street Press

Published: 2021-09-10

Total Pages: 164

ISBN-13: 9781015190825

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This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Linear Operators for Quantum Mechanics
Linear Operators for Quantum Mechanics

Author: Thomas F. Jordan

Publisher: Courier Corporation

Published: 2012-09-20

Total Pages: 162

ISBN-13: 0486140547

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Suitable for advanced undergraduates and graduate students, this compact treatment examines linear space, functionals, and operators; diagonalizing operators; operator algebras; and equations of motion. 1969 edition.

Spectra and Pseudospectra
Spectra and Pseudospectra

Author: Lloyd N. Trefethen

Publisher: Princeton University Press

Published: 2005-08-07

Total Pages: 634

ISBN-13: 9780691119465

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Pure and applied mathematicians, physicists, scientists, and engineers use matrices and operators and their eigenvalues in quantum mechanics, fluid mechanics, structural analysis, acoustics, ecology, numerical analysis, and many other areas. However, in some applications the usual analysis based on eigenvalues fails. For example, eigenvalues are often ineffective for analyzing dynamical systems such as fluid flow, Markov chains, ecological models, and matrix iterations. That's where this book comes in. This is the authoritative work on nonnormal matrices and operators, written by the authorities who made them famous. Each of the sixty sections is written as a self-contained essay. Each document is a lavishly illustrated introductory survey of its topic, complete with beautiful numerical experiments and all the right references. The breadth of included topics and the numerous applications that provide links between fields will make this an essential reference in mathematics and related sciences.

Linear Operators in Hilbert Spaces
Linear Operators in Hilbert Spaces

Author: Joachim Weidmann

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 413

ISBN-13: 1461260272

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This English edition is almost identical to the German original Lineare Operatoren in Hilbertriiumen, published by B. G. Teubner, Stuttgart in 1976. A few proofs have been simplified, some additional exercises have been included, and a small number of new results has been added (e.g., Theorem 11.11 and Theorem 11.23). In addition a great number of minor errors has been corrected. Frankfurt, January 1980 J. Weidmann vii Preface to the German edition The purpose of this book is to give an introduction to the theory of linear operators on Hilbert spaces and then to proceed to the interesting applica tions of differential operators to mathematical physics. Besides the usual introductory courses common to both mathematicians and physicists, only a fundamental knowledge of complex analysis and of ordinary differential equations is assumed. The most important results of Lebesgue integration theory, to the extent that they are used in this book, are compiled with complete proofs in Appendix A. I hope therefore that students from the fourth semester on will be able to read this book without major difficulty. However, it might also be of some interest and use to the teaching and research mathematician or physicist, since among other things it makes easily accessible several new results of the spectral theory of differential operators.

The Operators
The Operators

Author: James Rennie

Publisher: Pen and Sword

Published: 2014-07-02

Total Pages: 356

ISBN-13: 1473834961

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A rare look inside the British Army’s elite special forces unit and its counter-terrorism surveillance operations—from one of its own. Few outside the security services have heard of 14 Company. As deadly as the SAS yet more secret, the Operators of 14 Company are Britain’s most effective weapon against international terrorism. For every bomb that goes off 14 Company prevent twelve. The selection process is the most physically, intellectually and emotionally demanding anywhere in the world. Trained to operate under cover, Operators have at their disposal an arsenal of techniques and weapons unmatched by any other UK government or military agency. This is the true story of one Operator and of some of the most hair-raising military operations ever conducted on the streets of Britain.

The Operators
The Operators

Author: Michael Hastings

Publisher: Penguin

Published: 2012-01-05

Total Pages: 296

ISBN-13: 1101575484

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The inspiration for the Netflix original movie War Machine, starring Brad Pitt, Tilda Swinton, and Ben Kingsley From the author of The Last Magazine, a shocking behind-the-scenes portrait of our military commanders, their high-stake maneuvers, and the politcal firestorm that shook the United States. In the shadow of the hunt for Bin Laden and the United States’ involvement in the Middle East, General Stanley McChrystal, the commanding general of international and U.S. forces in Afghanistan, was living large. His loyal staff liked to call him a “rock star.” During a spring 2010 trip, journalist Michael Hastings looked on as McChrystal and his staff let off steam, partying and openly bashing the Obama administration. When Hastings’s article appeared in Rolling Stone, it set off a political firestorm: McChrystal was unceremoniously fired. In The Operators, Hastings picks up where his Rolling Stone coup ended. From patrol missions in the Afghan hinterlands to senior military advisors’ late-night bull sessions to hotel bars where spies and expensive hookers participate in nation-building, Hastings presents a shocking behind-the-scenes portrait of what he fears is an unwinnable war. Written in prose that is at once eye-opening and other times uncannily conversational, readers of No Easy Day will take to Hastings’ unyielding first-hand account of the Afghan War and its cast of players.

Baghdad Operators
Baghdad Operators

Author: James Glasse

Publisher: Pen and Sword

Published: 2013-06-10

Total Pages: 248

ISBN-13: 1781593655

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p across worn torn Iraq in the spring 2003. Discover how they used their unique military skills to create a successful security company with over 300 employees during the early days of the occupation. See how Iraq was torn apart from the inside from someone who was there and get an insight into what it took to rebuild a country ripped apart by war and insurgency.??Discover how their journey moved from the Basra oilfields, where they apply their skills to beat the bad guys and get more work, into Baghdad dangerous streets. Learn how they used their Close Protection skills to escort their clients around the country’s electricity grid. Find out how the power stations became a target and what steps were taken to protect them from mortars, rockets and infiltrators. Learn how the insurgents upped up their game and turned their attentions on the security teams, using everything from snipers and rockets to car bombs and IEDs to try and kill them. Also see how the security teams played piggy in the middle between the American military and the Iraqi police and how they had to use their skills and wits to keep working. Even in Kurdistan, the safest part of the country, one wrong move could cost have cost lives.??Find out how Britain’s ex-Special Forces helped Iraq’s reconstruction and the part they had to pay along the way...

Fearless
Fearless

Author: Eric Blehm

Publisher: WaterBrook

Published: 2013-05-21

Total Pages: 290

ISBN-13: 0307730700

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Go deep into SEAL Team SIX, straight to the heart of one of its most legendary operators. When Navy SEAL Adam Brown woke up on March 17, 2010, he didn’t know he would die that night in the Hindu Kush Mountains of Afghanistan—but he was ready. In a letter to his children, not meant to be seen unless the worst happened, he wrote, “I’m not afraid of anything that might happen to me on this earth, because I know no matter what, nothing can take my spirit from me.” Fearless is the story of a man of extremes, whose courage and determination were fueled by faith, family, and the love of a woman. It’s about a man who waged a war against his own worst impulses, including drug addiction, and persevered to reach the top tier of the U.S. military. In a deeply personal and absorbing chronicle, Fearless reveals a glimpse inside the SEAL Team SIX brotherhood, and presents an indelible portrait of a highly trained warrior whose final act of bravery led to the ultimate sacrifice. Adam Brown was a devoted man who was an unlikely hero but a true warrior, described by all who knew him as…fearless. “As a rule, we don’t endorse books or movies or anything regarding the command where I work—and Adam Brown worked—but as the author writes in Fearless, ‘you have to know the rules, so you know when to bend or break them.’ This is one of those times. Read this book. Period. It succeeds where all the others have failed.” —SEAL Team SIX Operator