The dissertation is about a quantitative analysis on Utamakura from ‘Kunigunino-tokorodokoro-na’ which is a part of Nōin-utamakura by poet Nōin-hōshi in the Heian-era.
Although the Nōin-utamakura is one of the Nōin-hōshi’s writing, it has been criticized due to obscure contents and the process of formation.
There are 688 items of Utamakura in 62 countries including duplicates, ‘Kunigunino-tokorodokoro-na’, in Nōin-utamakura ; and the objective is to ascertain the common features among it, Gengen-shū and Nōin-hōshi-shū by Nōin-hōshi, and Waka from Chokusen-waka-shū through conducting a comparative analysis.
In comparison with Gengen-shū, 23 items in 12 countries correspond and 32 items in 13 countries correspond to Nōin-hōshi-shū. The use of Utamakura has been designated as the poet characteristic of Nōin-hōshi. Nōin-utamakura, Gengen-shū, and Nōin-hōshi-shū share the common points that Utamakura takes the major part of among them; however, a prudent approach is needed in their contents.
Following after, 202 items in 37 countries correspond in comparison to Waka which use Utamakura from Chokusen-waka-shū. The common features with Sandai-shū, that Nōin-hōshi might check in his lifetime, are meaningful; but after its period Chokusen-waka-shū also increased its importance in common.
Based on these results, it is able to determine the character of Nōin-utamakura including analysis on different parts of Nōin-utamakura.