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@misc{OAI:Planar-Graph-Metrics-Embed-into-L1-with-Constant-Distortion-September-23-2026,
  author = {{OpenAI}},
  title = {{Planar Graph Metrics Embed into $L_1$ with Constant Distortion}},
  howpublished = {OpenAI Math Release preprint
                  \href{https://github.com/openai/math/blob/main/preprints/Planar-Graph-Metrics-Embed-into-L1-with-Constant-Distortion-September-23-2026/paper.pdf}{OAI:Planar-Graph-Metrics-Embed-into-L1-with-Constant-Distortion-September-23-2026}},
  year = {2026}
}

@misc{OAI:L1-Embeddings-of-Graphs-of-Bounded-Treewidth-September-23-2026,
  author = {{OpenAI}},
  title = {{$L_1$ Embeddings of Graphs of Bounded Treewidth}},
  howpublished = {OpenAI Math Release preprint
                  \href{https://github.com/openai/math/blob/main/preprints/L1-Embeddings-of-Graphs-of-Bounded-Treewidth-September-23-2026/paper.pdf}{OAI:L1-Embeddings-of-Graphs-of-Bounded-Treewidth-September-23-2026}},
  year = {2026}
}