= Choongbum Lee
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<Choongbum Lee> works on <graph theory> and <Ramsey theory>. His joint paper with <David Conlon>, <Jacob Fox> and <Benny Sudakov> investigates copies of a graph whose vertex order must be preserved.<Ordered Ramsey numbers by David Conlon and others>[Original author byline]{ref}
The ordered setting is sensitive to labeling: some ordered <matchings> have superpolynomial Ramsey numbers. Thus low ordinary degree does not by itself make an order-constrained embedding problem easy.<Ordered Ramsey numbers by David Conlon and others>[Abstract and introduction]{ref}
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