Investigating the Buddhist Manuscripts from Afghanistan and Pakistan in the Hirayama Ikuo Collection

本研究的目的是调查1990年代首次发现的佛教手稿，主要是在巴米扬山谷，阿富汗，和吉尔吉特地区，巴基斯坦。这些手稿后来被分成各种私人收藏。海外收藏家中有著名的挪威Schoyen收藏家、美国亚当斯收藏家，国内收藏家中有著名画家平山郁夫。我们以平山郁夫藏为中心，对梵文和甘地罗文古代手稿中的大量文献进行了进一步的广泛研究，并与海外的联合研究人员合作，将其与Schoyen藏等其他馆藏中的相关资料进行了比较，并计划发表我们的分析研究结果。平山郁夫藏品中最有价值的材料之一是在巴基斯坦的<$t地区发现的用梵文写的、属于有部佛教的《Dirgha-agama》的桦树皮文本。我们能够确定这份文件最初由453个字母组成，其中平山郁夫收集了53个。在四年的研究过程中，我们花了大量的时间来破译《狄伽-阿迦玛》，我们成功地完成了对这53卷中所包含的多个文本来源的严格的文本批判性阅读和详细的注释。此外，我们还对这些文件与平山郁夫收藏中的其他文件进行了文本批判性调查，并能够澄清这一收藏的全貌。至于我们的详细研究结果，这些结果将发表在一本关于这一主题的学术报告中。

The aim of the present study was to investigate Buddhist manuscripts that were first discovered during the 1990s largely in the Bamiyan Valley, Afghanistan, and in the Gilgit region, Pakistan. These caches of manuscripts had been subsequently divided into various private collections. Among the overseas collectors are the well known Schoyen Collection of Norway, and the Adams Collection of the United States of America, and among the domestic collectors is that of the noted painter Hirayama Ikuo. Focusing on the Hirayama Ikuo Collection, we conducted further extensive research on the numerous documents among the ancient manuscripts written in Sanskrit and Ghandhari, and in cooperation with joint researchers overseas, we compared them with the related materials in other holdings such as the Schoyen Collection, and planned to publish the results of our analytical studies. One of the most valuable materials among the documents in the Hirayama Ikuo Collection are the birch bark texts of the Dirgha-agama written in Sanskrit and belonging to the Sarvastivadin Buddhist order that were discovered in the Gilgit region of Pakistan. We were able to determine that this document originally consisted of 453 folios, of which the Hirayama Ikuo Collection contains 53. During the course of the four years of research, in which period the deciphering of the Dirgha-agama consumed much of our time, we were able to successfully complete the rigorous text critical reading and detailed annotation required of the multiple textual sources that were contained in these 53 folios. Furthermore, we also undertook the text critical investigation of these documents in relation to the other documents in the Hirayama Ikuo Collection and were able to clarify the total picture of this collection. With regard to our detailed research findings, these results will be published in a volume of academic reports on the theme.