This book is a self-contained and concise introduction to the techniques and applications of path integral quantization and functional techniques, aimed at students and practitioners. The first half of the text focuses on quantum mechanics, including a review of the action formulation of classical mechanics and quantum mechanics in the Dirac operator and state formalism, and further examination of the path integral. The second part examines relativistic field theories, reviewing special re...

Classical Field Theory and the Stress-Energy Tensor (Second Edition) is an introduction to classical field theory and the mathematics requiredto formulate and analyze it. The development of the mathematical formalism,previously in an appendix, is integrated into the presentation of the physicalconcepts. The book develops the core concepts of field theory by applyingNewtonian physics to the stretched string, emphasizing the relationship betweenfie...

FROM THE SUNDAY TIMES BESTSELLING AUTHORTWO'S COMPANY, THREE'S MURDER'I loved it!' GILLIAN McALLISTER'Nobody writes psychopaths like Swanson.' MARK EDWARDSWhen private detective and former cop Henry Kimball is hired to investigate a cheating husband, he senses all is not quite what it seems, and before he knows it he's gotten far too close to the other woman.As the case rapidly gets ever more dangerous, he's...

Annabeth is terrified. Just when she’s about to be reunited with Percy—after six months of being apart, thanks to Hera—it looks like Camp Jupiter is preparing for war. As Annabeth and her friends Jason, Piper, and Leo fly in on the Argo II, she can’t blame the Roman demigods for thinking the ship is a Greek weapon. With its steaming bronze dragon figurehead, Leo’s fantastical creation doesn’t appear friendly. Annabeth hopes that the sight of their praetor Jason on deck will reassu...

Brought to you by Puffin.The third audiobook **in the bestselling spin off series from Percy Jackson and the Olympians - now a major Disney+ series!ONE FATAL PROPHECY. SEVEN BRAVE DEMIGODS. A QUEST TO FIND - AND CLOSE - THE DOORS OF DEATH.**Annabeth felt as if someone had draped a cold washcloth across her neck. She heard that whispering laughter again, as if the presence had followed her from the ship.She looked up at the A...

Pedro Gomez of ESPN was a beloved figure in baseball. His death from sudden cardiac arrest on Feb. 7, 2021, unleashed an outpouring of heartfelt tributes. He was 58, both a hard-nosed reporter and a smiling ambassador of the sport. These 62 personal essays soar beyond sports to delve into life lessons.Pedro, a proud Cuban American, was known for his dramatic reporting from Havana. Fully and fluidly bilingual, he did as much as anyone to bridge the wide gap that had...

If you’re on the list, someone wants you dead.From the New York Times bestselling author of Eight Perfect Murders comes the heart-pounding story of nine strangers who receive a cryptic list with their names on it—and then begin to die in highly unusual circumstances.Nine strangers receive a list with their names on it in the mail. Nothing else, just a list of names on a single sheet of paper. None of the nine people know o...

What if future criminals played games of skill for their freedom? Would spellcasters dare use magic to skew chance in their favor? What if aliens judged us based on the games we play? Can a dying woman literally cheat Death?Games are about more than winning and losing. They’re about risk and reward, strategy and blind fortune, our need to win and our fear of being outplayed. And when magic and science infuse a game, the stakes can be of cosmic importance. Each move could decide lif...

An authoritative account of the Coptic Papacy in Egypt from the coming of Islam to the onset of the Ottoman era, by a leading religious studies scholar, new in paperbackIn Volume 1 of this series, Stephen Davis contended that the themes of “apostolicity, martyrdom, monastic patronage, and theological resistance” were determinative for the cultural construction of Egyptian church leadership in late antiquity. This second volume shows that the medieval Coptic popes (...

College soccer star Mark Zupan had been out drinking one night and had passed out in the back of his best friend's pickup truck when his friend got in the driver's seat, decided to take the truck for a spin, and accidentally crashed it. Thrown into a canal and stuck in frigid water for fourteen hours, Mark was finally rescued and learned soon after that he'd broken his neck. He'd most likely be a quadriplegic and spend the rest of his life in a wheelchair, doctors told him. At first Mark's...

'Smart, surprising with a deeply satisfying ending. I loved it!' GILLIAN McALLISTER'Another superb slice of Neo-noir' M. W. CRAVEN'Nobody writes psychopaths like Swanson.' MARK EDWARDSTWO'S COMPANY, THREE'S FATAL' Do you remember me?' she asked, after stepping into my office.When private detective and former teacher Henry Kimball is hired to investigate an ex-pupil's cheating husband,...

**THE KIND WORTH SAVING, THE UN-PUT-DOWNABLE SEQUEL TO BESTSELLER THE KIND WORTH KILLING, AVAILABLE TO PRE-ORDER NOWTHE SUNDAY TIMES BESTSELLING AUTHOR'Deliciously ingenious.'** Daily Mail'Keeps you guessing right to the end.' PETER MAY'Smartly entertaining.' Washington Post' So beautifully written, so gripping, so perfect. ' SOPHI...