道学气
发表于 2025-4-2 21:14:04
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Etching
发表于 2025-4-3 02:40:15
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Commission
发表于 2025-4-3 06:53:05
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臭名昭著
发表于 2025-4-3 09:25:05
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brassy
发表于 2025-4-3 13:21:56
Universal Line-Sets for Drawing Planar 3-Treesthe generalization of the known bijection between plane 3-trees and rooted full ternary trees to the bijection between planar 3-trees and unrooted full ternary trees. We also identify some subclasses of planar 3-trees whose drawings are supported by fewer than . parallel lines.