1.

Record Nr.

UNINA9910457894303321

Autore

Cook William <1957->

Titolo

In pursuit of the traveling salesman [[electronic resource] ] : mathematics at the limits of computation / / William J. Cook

Pubbl/distr/stampa

Princeton, : Princeton University Press, 2012

ISBN

1-283-33977-3

9786613339775

1-4008-3959-9

Edizione

[Course Book]

Descrizione fisica

1 online resource (245 p.)

Disciplina

511/.5

Soggetti

Traveling salesman problem

Computational complexity

Electronic books.

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Description based upon print version of record.

Nota di bibliografia

Includes bibliographical references and index.

Nota di contenuto

Front matter -- Contents -- Preface -- 1: Challenges -- 2: Origins of the Problem -- 3: The Salesman in Action -- 4: Searching for a Tour -- 5: Linear Programming -- 6: Cutting Planes -- 7: Branching -- 8: Big Computing -- 9: Complexity -- 10: The Human Touch -- 11: Aesthetics -- 12: Pushing the Limits -- Notes -- Bibliography -- Index

Sommario/riassunto

"What is the shortest possible route for a traveling salesman seeking to visit each city on a list exactly once and return to his city of origin? It sounds simple enough, yet the traveling salesman problem is one of the most intensely studied puzzles in applied mathematics--and it has defied solution to this day. In this book, William Cook takes readers on a mathematical excursion, picking up the salesman's trail in the 1800s when Irish mathematician W. R. Hamilton first defined the problem, and venturing to the furthest limits of today's state-of-the-art attempts to solve it. Cook examines the origins and history of the salesman problem and explores its many important applications, from genome sequencing and designing computer processors to arranging music and hunting for planets. He looks at how computers stack up against the traveling salesman problem on a grand scale, and discusses how humans, unaided by computers, go about trying to solve the puzzle.



Cook traces the salesman problem to the realms of neuroscience, psychology, and art, and he also challenges readers to tackle the problem themselves. The traveling salesman problem is--literally--a $1 million question. That's the prize the Clay Mathematics Institute is offering to anyone who can solve the problem or prove that it can't be done. In Pursuit of the Traveling Salesman travels to the very threshold of our understanding about the nature of complexity, and challenges you yourself to discover the solution to this captivating mathematical problem"--

2.

Record Nr.

UNINA9910627288803321

Titolo

Tomatoes / / editado por Ep Heuvelink

Pubbl/distr/stampa

Wallingford, Oxfordshire, UK : , : CABI, , 2018

ISBN

1-78639-412-X

Edizione

[Second edition.]

Descrizione fisica

x, 378 páginas : ilustraciones

Collana

Crop Production Science in Horticulture Series ; ; 27

Disciplina

635.642

Soggetti

Tomate

Tomate - Cultivo

Horticultura

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Nota di contenuto

1. The global tomato industry.- 2. Genectics and breeding.- 3. Developmental processes.- 4. Crop growth and yield.- 5. Fruit quality.- 6. Irrigation and fertilization.- 7. Crop proetection: pest and disease management.- 8. Production in open field.- 9. Greenhouse tomato production.- 10. Postharvest biology and handling of tomatoes.- 11. Organic tomato.

Sommario/riassunto

Esta nueva edición del exitoso libro práctico proporciona una descripción completa y accesible de todos los aspectos de la producción del cultivo del tomate, dentro del contexto de la industria mundial del tomate. Los tomates son uno de los cultivos hortícolas más importantes tanto en las regiones tropicales como en las de



temperatura, y este libro explora nuestro conocimiento actual de los principios científicos que subyacen a su biología y producción.