Slides for my talks

• Discrete mathematical charms of Paul Erdős
• A self-centered look at cutting planes
• A De Bruijn - Erdős theorem in graphs?
• Points and lines
• The traveling salesman problem - part I (expository)
• The traveling salesman problem - part II (technical)
• Generalizing one of the De Bruijn - Erdős theorems pdf version
• Betweenness pdf version

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