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A little boy fills his sound box with words beginning with the letter "w."
"Little w has an adventure with items beginning with her letter's sound, such as woodpeckers, a wolf, a wishing wand, some watermelons, and wonderfully wiggly worms."--Provided by publisher.
W-symmetry is an extension of conformal symmetry in two dimensions. Since its introduction in 1985, W-symmetry has become one of the central notions in the study of two-dimensional conformal field theory. The mathematical structures that underlie W-symmetry are so-called W-algebras, which are higher-spin extensions of the Virasoro algebra. This book contains a collection of papers on W-symmetry, covering the period from 1985 through 1993. Its main focus is the construction of W-algebras and their representation theory. A recurrent theme is the intimate connection between W-algebras and affine Lie algebras. Some of the applications, in particular W-gravity, are also covered.The significance of this reprint volume is that there are no textbooks entirely devoted to the subject.
From the reviews: "This book is an excellent and comprehensive survey of the theory of von Neumann algebras. It includes all the fundamental results of the subject, and is a valuable reference for both the beginner and the expert." Mathematical Reviews
"George W. Bush graduated from Yale University and Harvard Business School, flew planes with the Texas Air National Guard, was an executive at a major oil company, and served as the governor of Texas. In 2001 he followed in his father's footsteps and became the president of the United States" --Cover, page 4.
W ostatnich latach popularnym sposobem na przyciągnięcie turystów i uatrakcyjnienie miejscowości uzdrowiskowych stało się budowanie otwartych inhalatoriów. Tężnie solankowe mogą być nie tylko atrakcją turystyczną, ale i ważnym obiektem leczniczym. Jednak brakuje doniesień literaturowych na temat ich funkcjonowania i oddziaływania tężni, szczególnie w kontekście mikrobiologii środowiskowej oraz zdrowia publicznego. Praca ta zawiera pierwszą długoterminową ocenę mikrobiologicznego zanieczyszczenia powietrza na terenie uzdrowisk nizinnych ze szczególnym uwzględnieniem otoczenia naturalnych inhalatoriów.
Garrett and the Baltimore & Ohio Railroad is a vivid account of Garrett's twenty-six-year reign.
Our new president, George W. Bush, once said: "I never dreamed about becoming president. When I was growing up, I wanted to be Willie Mays." George W. was born in 1946 and attended Yale University. As a young man, he trained as a fighter pilot in the Texas Air National Guard before beginning a career in business. He then turned to Texas politics and served as governor there from 1994 to 2000. This is the first biography for young people to be published about the forty-third president of the United States, George W. Bush. With up-to-the-minute information and quotes from our new president -- including details of the final days of the campaign and a description of the events from Election Day to acceptance speech -- this book is essential reading for every young student of American history.