mathematics and culture of kyoto patterns and group theory naoki ohta

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Mathematics and culture of Kyoto Patterns and Group theory Naoki Ohta

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Page 1: Mathematics and culture of Kyoto Patterns and Group theory Naoki Ohta

Mathematics and culture of Kyoto

Patterns and Group theory

Naoki Ohta

Page 2: Mathematics and culture of Kyoto Patterns and Group theory Naoki Ohta

1.About roofing tiles in Kyoto

2.About kimonos and patterns in Mannpukuji temple

3.About relation between patterns and group theory

Contents

Page 3: Mathematics and culture of Kyoto Patterns and Group theory Naoki Ohta

Japanese roofing tile

Page 4: Mathematics and culture of Kyoto Patterns and Group theory Naoki Ohta

Tiles on the roof

Tiles on the roof protect a house from rain, wind and fire.

Some patterns are on these tiles.

Page 5: Mathematics and culture of Kyoto Patterns and Group theory Naoki Ohta

The tile of 1300 years ago

Other tiles on the roof

Page 6: Mathematics and culture of Kyoto Patterns and Group theory Naoki Ohta

In Shrine and Temple

Page 7: Mathematics and culture of Kyoto Patterns and Group theory Naoki Ohta

Houryuji temple in Nara

Glide reflection along the centerline

Page 8: Mathematics and culture of Kyoto Patterns and Group theory Naoki Ohta

On kimono

Page 9: Mathematics and culture of Kyoto Patterns and Group theory Naoki Ohta

1. Rectangle patterns.How many kinds of rectangle patterns are there?

Kinds of Rectangle patterns are five patterns.

But I can’t find this pattern in Kyoto.

Page 10: Mathematics and culture of Kyoto Patterns and Group theory Naoki Ohta
Page 11: Mathematics and culture of Kyoto Patterns and Group theory Naoki Ohta

2. Strip pattern.How many kinds of strip patterns are there?Kinds of strip pattern are seven patterns.

1.

2.

3.

4. I can’t find the pattern in Kyoto which has rotation by 180 with pole on the centerline.

Page 12: Mathematics and culture of Kyoto Patterns and Group theory Naoki Ohta

5.

6.

7.

Page 13: Mathematics and culture of Kyoto Patterns and Group theory Naoki Ohta

Conclusion

Traditional culture in Kyoto include Mathematics!

Page 14: Mathematics and culture of Kyoto Patterns and Group theory Naoki Ohta

Thank you