The Bounded and Precise Word Problems for Presentations of Groups PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download The Bounded and Precise Word Problems for Presentations of Groups PDF full book. Access full book title The Bounded and Precise Word Problems for Presentations of Groups by S. V. Ivanov. Download full books in PDF and EPUB format.
Author: S. V. Ivanov
Publisher: American Mathematical Soc.
ISBN: 1470441438
Category : Education
Languages : en
Pages : 118
Get Book Here
Book Description
The author introduces and studies the bounded word problem and the precise word problem for groups given by means of generators and defining relations. For example, for every finitely presented group, the bounded word problem is in NP, i.e., it can be solved in nondeterministic polynomial time, and the precise word problem is in PSPACE, i.e., it can be solved in polynomial space. The main technical result of the paper states that, for certain finite presentations of groups, which include the Baumslag-Solitar one-relator groups and free products of cyclic groups, the bounded word problem and the precise word problem can be solved in polylogarithmic space. As consequences of developed techniques that can be described as calculus of brackets, the author obtains polylogarithmic space bounds for the computational complexity of the diagram problem for free groups, for the width problem for elements of free groups, and for computation of the area defined by polygonal singular closed curves in the plane. The author also obtains polynomial time bounds for these problems.
Author: S. V. Ivanov
Publisher: American Mathematical Soc.
ISBN: 1470441438
Category : Education
Languages : en
Pages : 118
Get Book Here
Book Description
The author introduces and studies the bounded word problem and the precise word problem for groups given by means of generators and defining relations. For example, for every finitely presented group, the bounded word problem is in NP, i.e., it can be solved in nondeterministic polynomial time, and the precise word problem is in PSPACE, i.e., it can be solved in polynomial space. The main technical result of the paper states that, for certain finite presentations of groups, which include the Baumslag-Solitar one-relator groups and free products of cyclic groups, the bounded word problem and the precise word problem can be solved in polylogarithmic space. As consequences of developed techniques that can be described as calculus of brackets, the author obtains polylogarithmic space bounds for the computational complexity of the diagram problem for free groups, for the width problem for elements of free groups, and for computation of the area defined by polygonal singular closed curves in the plane. The author also obtains polynomial time bounds for these problems.
Author: David Zielinski
Publisher: John Wiley & Sons
ISBN: 1118654595
Category : Business & Economics
Languages : en
Pages : 330
Get Book Here
Book Description
For anyone who wants to become a more persuasive and tech-savvy presenter, Master Presenter offers an accessible collection of the best tips, tactics, and hard-won lessons from top presentation skill coaches who write for PresentationXpert newsletter. Designed to be a hands-on resource, the book includes advice drawn from real-world, time-starved businesspeople who create compelling presentations that get results. Now, you too can tap into the power of the little-used, but valuable features of PowerPoint® that can save time or enhance slide design and make your presentation stand out in a crowd. This groundbreaking book also includes practical advice on getting the most from mobile devices to enhance presentations and shows how to apply social media tools like Twitter to aid in delivering compelling messages. Learn how web conferencing can be used not only to reduce travel costs, but to deliver more effective informational, training or motivational presentations across time zones. In addition to putting the spotlight on the high-tech, Master Presenter contains valuable information on the critical low-tech presentation skills. Contributors show how to best use your voice, hands, and body and what it takes to move your listeners to take action when making a well-prepared pitch. And even if you are inexperienced, you can use the book's techniques to become a great storyteller that will win over audiences and help earn you a reputation as a master presenter. Praise for Master Presenter "Master Presenter arms you with the method and magic to present with poise and power. David Zielinski has assembled the best and brightest mentors to teach greatness in business presenting." Chip R. Bell, author of Managers as Mentors "Master Presenter is the most comprehensive collection of useful articles I've ever seen in one place. After reading more than 200 books on public speaking in my lifetime and teaching the subject in eight countries, I can easily recommend this book for beginners and seasoned speakers. Great tips on PowerPoint®, for example, with dozens of articles and illustrations on all aspects of speaking by leaders in the field." Michael Buschmohle, president, Applause Associates "As a 30-year veteran of presenting and a certified professional facilitator, I found myself reading through this book's articles and still gaining new insights into things I can do to improve my presentations. I was impressed by the perspectives shared by this top-notch team of experts. This is one of the few books I would strongly recommend to my network of customers, who are purchasers of facilitation and engagement tools." Dr. Scott Simmerman, managing partner, Performance Management Company "I make presentations for a living and I've been doing it for a long time, but I'm keeping a copy of this book within reach on my desk at all times. I could have used it when I was starting out, but I also have learned enough over the years to recognize how valuable this book will be as an ongoing and wide-ranging resource for telling compelling stories." Brian McDermott, co-author of Leading Innovation and Time Out for Leaders
Author: Michael V. Hayden
Publisher: Penguin
ISBN: 0143109987
Category : Biography & Autobiography
Languages : en
Pages : 466
Get Book Here
Book Description
From the bestselling author of The Assault on Intelligence, an unprecedented high-level master narrative of America's intelligence wars, demonstrating in a time of new threats that espionage and the search for facts are essential to our democracy For General Michael Hayden, playing to the edge means playing so close to the line that you get chalk dust on your cleats. Otherwise, by playing back, you may protect yourself, but you will be less successful in protecting America. "Play to the edge" was Hayden's guiding principle when he ran the National Security Agency, and it remained so when he ran CIA. In his view, many shortsighted and uninformed people are quick to criticize, and this book will give them much to chew on but little easy comfort; it is an unapologetic insider's look told from the perspective of the people who faced awesome responsibilities head on, in the moment. How did American intelligence respond to terrorism, a major war and the most sweeping technological revolution in the last 500 years? What was NSA before 9/11 and how did it change in its aftermath? Why did NSA begin the controversial terrorist surveillance program that included the acquisition of domestic phone records? What else was set in motion during this period that formed the backdrop for the infamous Snowden revelations in 2013? As Director of CIA in the last three years of the Bush administration, Hayden had to deal with the rendition, detention and interrogation program as bequeathed to him by his predecessors. He also had to ramp up the agency to support its role in the targeted killing program that began to dramatically increase in July 2008. This was a time of great crisis at CIA, and some agency veterans have credited Hayden with actually saving the agency. He himself won't go that far, but he freely acknowledges that CIA helped turn the American security establishment into the most effective killing machine in the history of armed conflict. For 10 years, then, General Michael Hayden was a participant in some of the most telling events in the annals of American national security. General Hayden's goals are in writing this book are simple and unwavering: No apologies. No excuses. Just what happened. And why. As he writes, "There is a story here that deserves to be told, without varnish and without spin. My view is my view, and others will certainly have different perspectives, but this view deserves to be told to create as complete a history as possible of these turbulent times. I bear no grudges, or at least not many, but I do want this to be a straightforward and readable history for that slice of the American population who depend on and appreciate intelligence, but who do not have the time to master its many obscure characteristics."
Author: Hai-Jew, Shalin
Publisher: IGI Global
ISBN: 1466686979
Category : Computers
Languages : en
Pages : 614
Get Book Here
Book Description
Multimedia is currently used in a variety of contexts, from social interaction to educational and business settings. The richness of the multimedia experience and its ability to enhance information sharing in a variety of settings makes it a valuable tool. Design Strategies and Innovations in Multimedia Presentations brings together the latest scholarly research and proven strategies for designing and implementing multimedia technologies for various applications, with an emphasis on education. Featuring a selection of highly informative chapters on the pervasiveness of multimedia and best methods for developing presentations using this technology, this publication is an essential reference source for researchers, practitioners, and professionals. This publication features timely, research based chapters on the use of digital media tools and applications including digital visualization, e-learning, human-computer interaction, online presentations, semantic web, social media data, and technology in education.
Author: Michael Alley
Publisher: Springer Science & Business Media
ISBN: 0387225870
Category : Science
Languages : en
Pages : 248
Get Book Here
Book Description
This timely and hugely practical work provides a score of examples from contemporary and historical scientific presentations to show clearly what makes an oral presentation effective. It considers presentations made to persuade an audience to adopt some course of action (such as funding a proposal) as well as presentations made to communicate information, and it considers these from four perspectives: speech, structure, visual aids, and delivery. It also discusses computer-based projections and slide shows as well as overhead projections. In particular, it looks at ways of organizing graphics and text in projected images and of using layout and design to present the information efficiently and effectively.
Author: Andrea Petersen
Publisher: Crown
ISBN: 0553418580
Category : Psychology
Languages : en
Pages : 322
Get Book Here
Book Description
A celebrated science and health reporter offers a wry, bracingly honest account of living with anxiety. A racing heart. Difficulty breathing. Overwhelming dread. Andrea Petersen was first diagnosed with an anxiety disorder at the age of twenty, but she later realized that she had been experiencing panic attacks since childhood. With time her symptoms multiplied. She agonized over every odd physical sensation. She developed fears of driving on highways, going to movie theaters, even licking envelopes. Although having a name for her condition was an enormous relief, it was only the beginning of a journey to understand and master it—one that took her from psychiatrists’ offices to yoga retreats to the Appalachian Trail. Woven into Petersen’s personal story is a fascinating look at the biology of anxiety and the groundbreaking research that might point the way to new treatments. She compares psychoactive drugs to non-drug treatments, including biofeedback and exposure therapy. And she explores the role that genetics and the environment play in mental illness, visiting top neuroscientists and tracing her family history—from her grandmother, who, plagued by paranoia, once tried to burn down her own house, to her young daughter, in whom Petersen sees shades of herself. Brave and empowering, this is essential reading for anyone who knows what it means to live on edge.
Author: David Horsager
Publisher: Simon and Schuster
ISBN: 1476711372
Category : Business & Economics
Languages : en
Pages : 368
Get Book Here
Book Description
"Originally published in 2009 by Summerside Press."
Author:
Publisher: Jeffrey Frank Jones
ISBN:
Category :
Languages : en
Pages : 1452
Get Book Here
Book Description
Over 1,400 total slides and pages …. 1. Examples Of Included Presentation Topics: Introduction to OSHA Fall Protection - OSHA 10-hour Outreach Training General Industry Scaffolding Design For Construction Safety Fall Protection Training Fall Protection Refresher Orientation Is This a Fall Hazard? Construction Safety Slips, Trips, and Falls Awareness Training 2. Examples Of Included Publication Topics: DEPARTMENT OF THE NAVY (DON) FALL-PROTECTION GUIDE Safety Standards for Scaffolds Used in the Construction Industry FALL PROTECTION IN RESIDENTIAL CONSTRUCTION OSHA Training Institute Construction Focus Four: Fall Hazards Fall Hazards Personal Fall Arrest System Checklist - Student Copy Construction Focus Four: Fall Hazards Student Handouts Small Business Handbook Reducing Falls During Residential Construction: Re-Roofing Portable Ladder Safety
Author: Michael Starbird
Publisher: American Mathematical Soc.
ISBN: 1470462613
Category : Education
Languages : en
Pages : 313
Get Book Here
Book Description
Topology Through Inquiry is a comprehensive introduction to point-set, algebraic, and geometric topology, designed to support inquiry-based learning (IBL) courses for upper-division undergraduate or beginning graduate students. The book presents an enormous amount of topology, allowing an instructor to choose which topics to treat. The point-set material contains many interesting topics well beyond the basic core, including continua and metrizability. Geometric and algebraic topology topics include the classification of 2-manifolds, the fundamental group, covering spaces, and homology (simplicial and singular). A unique feature of the introduction to homology is to convey a clear geometric motivation by starting with mod 2 coefficients. The authors are acknowledged masters of IBL-style teaching. This book gives students joy-filled, manageable challenges that incrementally develop their knowledge and skills. The exposition includes insightful framing of fruitful points of view as well as advice on effective thinking and learning. The text presumes only a modest level of mathematical maturity to begin, but students who work their way through this text will grow from mathematics students into mathematicians. Michael Starbird is a University of Texas Distinguished Teaching Professor of Mathematics. Among his works are two other co-authored books in the Mathematical Association of America's (MAA) Textbook series. Francis Su is the Benediktsson-Karwa Professor of Mathematics at Harvey Mudd College and a past president of the MAA. Both authors are award-winning teachers, including each having received the MAA's Haimo Award for distinguished teaching. Starbird and Su are, jointly and individually, on lifelong missions to make learning—of mathematics and beyond—joyful, effective, and available to everyone. This book invites topology students and teachers to join in the adventure.
Author: Robert BARNES (M.D.)
Publisher:
ISBN:
Category :
Languages : en
Pages : 644
Get Book Here
Book Description
