{
  "abstract": "In this paper, we study multiple Eisenstein series (MES) in positive characteristic. By computing and analyzing the $t$-expansions of MES, we determine the precise \"weights\" of their coefficients. This framework enables us to establish a graded algebra structure for MES, extending the direct sum result for Thakur's multiple zeta values proved in [Cha14]. Our result may also be viewed as a function field analogue of the corresponding direct sum result of Bachmann and Kanno [BK26].",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.18777",
  "author_total": 4,
  "authors": [
    {
      "name": "Chieh-Yu Chang"
    },
    {
      "name": "Song-Yun Chen"
    },
    {
      "name": "Fei-Jun Huang"
    },
    {
      "name": "Hung-Chun Tsui"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/07jptex7jy9v1.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.18777",
  "fulltext_url": null,
  "id": "07jptex7jy9v1",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.18777",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "math.NT"
    ],
    [
      "openalex",
      "2602|Advanced Mathematical Identities"
    ]
  ],
  "openalex": "W7213513286",
  "pdf_url": "https://arxiv.org/pdf/2609.18777",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-17",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/07jptex7jy9v1.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:22:23Z",
      "native_id": "2609.18777",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.18777"
    }
  ],
  "subjects": [
    {
      "field": "mathematics",
      "origin": "arxiv:math.NT",
      "subfield": "algebra-number-theory"
    }
  ],
  "title": "On Multiple Eisenstein Series in Positive Characteristic: Direct Sum Result",
  "title_text": "On Multiple Eisenstein Series in Positive Characteristic: Direct Sum Result",
  "type": "preprint",
  "updated_at": "2026-10-30T12:22:23Z",
  "url": "https://research.draconitic.com/paper/07jptex7jy9v1",
  "venue": "arXiv",
  "versions": []
}