Trees
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Counts include all statuses and descendants. Classifications are editorial or inferred from community fields, not an AMS assessment of the problem.
Gilbert-Pollak conjecture (Steiner ratio): determine C 43 or improve its bounds; the repository records 0.8559 (0.860 ) (lower) and 0.86602540378 (upper).
Leech Trees. Moderately interesting problem from Epoch AI’s FrontierMath: Open Problems; answers are checked by a verifier program.
These are selected sources for the parent class. Article coverage is a first reviewed selection, and may not cover this exact subcategory.
Electronic Journal of Combinatorics
Combinatorics and graph theory
Journal discovery is available; article-level extraction for this class is not yet included in this batch.
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