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1997年度後期 複雑系論(大å¦é™¢ç†å¦ç ”究科数å¦å°‚攻)・計算数ç†å¦ï¼ˆæ•°å¦ç§‘4年)
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98.10.7
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ç©£åœ(Enriched category)ãŠã‚ˆã³é«˜æ¬¡å…ƒåœã®åŸºç¤Žäº‹é …を解説ã—ã€ãã®è¨ˆç®—科å¦
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å¯èƒ½æ€§ã‚‚期待ã•ã‚Œã‚‹ï¼Žä»Šå¹´åº¦ã¯é«˜æ¬¡å…ƒåœã‚’ä¸å¿ƒã«è¬›ç¾©ã‚’ã™ã‚‹ã€‚
I åœã®åŸºç¤Žäº‹é …ã®å¾©ç¿’
諸定義ã€éšä¼´ã€ãƒ¢ãƒŠãƒ‰ã€
II ç‹ç¾©åŒåœ
III 高次元åœ
Baez-Dolanã«ã‚ˆã‚‹é«˜æ¬¡å…ƒåœã®å®šç¾©
IV 応用
計算科å¦ã¸ã®å¿œç”¨ä¾‹ã€è¤‡é›‘ç³»ã¸ã®å¿œç”¨ã®è©¦ã¿
(==> é«˜æ¬¡å…ƒåœ æƒ…å ±)
- J.C.Baez Introduction to n-categories.
- J.C.Baez and J.Dolan,
Higer-Dimensional Algebra III:n-categories and the Algebra of Opetopes, preprint.
- F. Borceux,
Handbook of Categorical Algebra I, 7 Bicategories and distributors, p281-323
Encyclopedia of Mathematics and its Applications
Cambridge University Press, 1994.
ISBN 0-521-44178-1.
- G.M. Kelly and R. Street,
Review of the Elements of 2-Categories.
Springer Lecture Notes in Mathematics, 420 (1974), 75-103.
- G.M. Kelly,
Basic Concepts of Enriched Category Theory.
Cambridge University Press, 1982.
ISBN 0-521-28702-2.
- F.W. Lawvere,
Metric spaces, generalized logic, and closed categories.
Rendiconti del Seminario Matematico e Fisico di Milano 43(1973),
135-166.
- H. Miyoshi,
A Combinatrial Definition of Baez-Dolan $\omega$-category, preprint.
三好åšä¹‹æ°ã‹ã‚‰ã€Œè±Šç©£åœã€ã¨ã„ã†enriched category ã®è¨³èªžãŒã™ã§ã«ã‚ã‚‹ã“ã¨ã‚’
æ•™ãˆã¦é ‚ã„ãŸï¼Žã¾ãŸã€Œé«˜éšŽè«–ç†ã€ã¨ã„ã†è¿°èªžãŒã‚り,ã—ã‹ã‚‚,高階論ç†
ã«å¯¾å¿œã™ã‚‹åœã¯fibered category,indexed category ã§ã‚ã‚‹ã®ã§ï¼Œã‚·ãƒ©ãƒã‚¹ã§ç”¨ã„ãŸ
「高階åœã€ã¯é©åˆ‡ã§ã¯ãªã„ã“ã¨ã‚‚æ•™ãˆã¦é ‚ã„ãŸï¼Ž
ã¾ãŸ
- 豊穣åœã®ç”±æ¥ã¯ï¼ˆå½“åˆæ¡ˆå†…ã«ã¯åŒåœã¨æ›¸ã„ã¦ã„ãŸãŒï¼‰ã§ã¯ãªãアーベルåœã§ã‚ã‚Š
åŒåœ(bicategory)ã¯å˜åœ(monoidal category)ã‹ã‚‰ç”±æ¥ã—ã¦ã„る.
- enriched category, 2-category, bicategory,indexed category, fibered category ãªã©ã¯åºƒãstructured categoryã¨ç·ç§°ã•ã‚Œï¼Œ2-category, bicategoryã®é¡žã¯
higher-dimensional categoryã¨ç·ç§°ã•ã‚Œã‚‹ï¼Ž
ã¨ã„ã†ã“ã¨ã‚’æ•™ãˆã¦é ‚ã„ãŸï¼ŽåŒæ°ã«æ·±ãæ„Ÿè¬ã—ãŸã„.
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