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A proof of the Kotzig–Ringel–Rosa Conjecture

Algebra & Discrete Mathematics

Speaker: Edinah Koffi Gnang, Johns Hopkins University
Related Webpage: https://engineering.jhu.edu/faculty/edinah-gnang/
Location: 2112 MSB
Start time: Tue, May 21 2024, 11:00AM

We describe a proof of the long standing Kotzig–Ringel–Rosa conjecture also known as the graceful tree labeling conjecture. The proof stems from a functional reformulation of the conjecture and a new composition lemma. We will also discuss how the composition lemma sheds light on a stronger variant of the Kotzig–Ringel–Rosa conjecture.