Basic Category Theory

¡ Cambridge Studies in Advanced Mathematics āĻ•āĻŋāĻ¤āĻžāĻĒ 143 ¡ Cambridge University Press
āĻ‡āĻŦā§āĻ•
193
āĻĒā§ƒāĻˇā§āĻ āĻž

āĻāĻ‡ āĻ‡āĻŦā§āĻ•āĻ–āĻ¨ā§° āĻŦāĻŋāĻˇā§Ÿā§‡

At the heart of this short introduction to category theory is the idea of a universal property, important throughout mathematics. After an introductory chapter giving the basic definitions, separate chapters explain three ways of expressing universal properties: via adjoint functors, representable functors, and limits. A final chapter ties all three together. The book is suitable for use in courses or for independent study. Assuming relatively little mathematical background, it is ideal for beginning graduate students or advanced undergraduates learning category theory for the first time. For each new categorical concept, a generous supply of examples is provided, taken from different parts of mathematics. At points where the leap in abstraction is particularly great (such as the Yoneda lemma), the reader will find careful and extensive explanations. Copious exercises are included.

āĻ˛āĻŋāĻ–āĻ•ā§° āĻŦāĻŋāĻˇāĻ¯āĻŧā§‡

Tom Leinster has held postdoctoral positions at Cambridge and the Institut des Hautes Études Scientifiques (France), and held an EPSRC Advanced Research Fellowship at the University of Glasgow. He is currently a Chancellor's Fellow at the University of Edinburgh. He is also the author of Higher Operads, Higher Categories (Cambridge University Press, 2004), and one of the hosts of the research blog, The n-Category CafÊ.

āĻāĻ‡ āĻ‡āĻŦā§āĻ•āĻ–āĻ¨āĻ• āĻŽā§‚āĻ˛ā§āĻ¯āĻžāĻ‚āĻ•āĻ¨ āĻ•ā§°āĻ•

āĻ†āĻŽāĻžāĻ• āĻ†āĻĒā§‹āĻ¨āĻžā§° āĻŽāĻ¤āĻžāĻŽāĻ¤ āĻœāĻ¨āĻžāĻ“āĻ•āĨ¤

āĻĒāĻĸāĻŧāĻžā§° āĻ¨āĻŋāĻ°ā§āĻĻā§‡āĻļāĻžā§ąāĻ˛ā§€

āĻ¸ā§āĻŽāĻžā§°ā§āĻŸāĻĢ’āĻ¨ āĻ†ā§°ā§ āĻŸā§‡āĻŦāĻ˛ā§‡āĻŸ
Android āĻ†ā§°ā§ iPad/iPhoneā§° āĻŦāĻžāĻŦā§‡ Google Play Books āĻāĻĒāĻŸā§‹ āĻ‡āĻ¨āĻˇā§āĻŸāĻ˛ āĻ•ā§°āĻ•āĨ¤ āĻ‡ āĻ¸ā§āĻŦāĻ¯āĻŧāĻ‚āĻ•ā§āĻ°āĻŋāĻ¯āĻŧāĻ­āĻžā§ąā§‡ āĻ†āĻĒā§‹āĻ¨āĻžā§° āĻāĻ•āĻžāĻ‰āĻŖā§āĻŸā§° āĻ¸ā§ˆāĻ¤ā§‡ āĻ›āĻŋāĻ‚āĻ• āĻšāĻ¯āĻŧ āĻ†ā§°ā§ āĻ†āĻĒā§āĻ¨āĻŋ āĻ¯'āĻ¤ā§‡ āĻ¨āĻžāĻĨāĻžāĻ•āĻ• āĻ¤'āĻ¤ā§‡āĻ‡ āĻ•ā§‹āĻ¨ā§‹ āĻ…āĻĄāĻŋāĻ…'āĻŦā§āĻ• āĻ…āĻ¨āĻ˛āĻžāĻ‡āĻ¨ āĻŦāĻž āĻ…āĻĢāĻ˛āĻžāĻ‡āĻ¨āĻ¤ āĻļā§āĻ¨āĻŋāĻŦāĻ˛ā§ˆ āĻ¸ā§āĻŦāĻŋāĻ§āĻž āĻĻāĻŋāĻ¯āĻŧā§‡āĨ¤
āĻ˛ā§‡āĻĒāĻŸāĻĒ āĻ†ā§°ā§ āĻ•āĻŽā§āĻĒāĻŋāĻ‰āĻŸāĻžā§°
āĻ†āĻĒā§āĻ¨āĻŋ āĻ•āĻŽā§āĻĒāĻŋāĻ‰āĻŸāĻžā§°ā§° ā§ąā§‡āĻŦ āĻŦā§āĻ°āĻžāĻ‰āĻœāĻžā§° āĻŦā§āĻ¯ā§ąāĻšāĻžā§° āĻ•ā§°āĻŋ Google PlayāĻ¤ āĻ•āĻŋāĻ¨āĻž āĻ…āĻĄāĻŋāĻ…'āĻŦā§āĻ•āĻ¸āĻŽā§‚āĻš āĻļā§āĻ¨āĻŋāĻŦ āĻĒāĻžā§°ā§‡āĨ¤
āĻ‡-ā§°ā§€āĻĄāĻžā§° āĻ†ā§°ā§ āĻ…āĻ¨ā§āĻ¯ āĻĄāĻŋāĻ­āĻžāĻ‡āĻš
Kobo eReadersā§° āĻĻā§°ā§‡ āĻ‡-āĻšāĻŋā§ŸāĻžāĻāĻšā§€ā§° āĻĄāĻŋāĻ­āĻžāĻ‡āĻšāĻ¸āĻŽā§‚āĻšāĻ¤ āĻĒā§āĻŋāĻŦāĻ˛ā§ˆ, āĻ†āĻĒā§āĻ¨āĻŋ āĻāĻŸāĻž āĻĢāĻžāĻ‡āĻ˛ āĻĄāĻžāĻ‰āĻ¨āĻ˛â€™āĻĄ āĻ•ā§°āĻŋ āĻ¸ā§‡āĻ‡āĻŸā§‹ āĻ†āĻĒā§‹āĻ¨āĻžā§° āĻĄāĻŋāĻ­āĻžāĻ‡āĻšāĻ˛ā§ˆ āĻ¸ā§āĻĨāĻžāĻ¨āĻžāĻ¨ā§āĻ¤ā§°āĻŖ āĻ•ā§°āĻŋāĻŦ āĻ˛āĻžāĻ—āĻŋāĻŦāĨ¤ āĻ¸āĻŽā§°ā§āĻĨāĻŋāĻ¤ āĻ‡-ā§°āĻŋāĻĄāĻžā§°āĻ˛ā§ˆ āĻĢāĻžāĻ‡āĻ˛āĻŸā§‹ āĻ•ā§‡āĻ¨ā§‡āĻ•ā§ˆ āĻ¸ā§āĻĨāĻžāĻ¨āĻžāĻ¨ā§āĻ¤ā§° āĻ•ā§°āĻŋāĻŦ āĻœāĻžāĻ¨āĻŋāĻŦāĻ˛ā§ˆ āĻ¸āĻšāĻžāĻ¯āĻŧ āĻ•ā§‡āĻ¨ā§āĻĻā§ā§°āĻ¤ āĻĨāĻ•āĻž āĻ¸āĻŦāĻŋāĻļā§‡āĻˇ āĻ¨āĻŋā§°ā§āĻĻā§‡āĻļāĻžā§ąāĻ˛ā§€ āĻšāĻžāĻ“āĻ•āĨ¤