# All about PageRank

A brief tour of the PageRank algorithm.… Read More All about PageRank

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# The Intrepid Mathematician

## Reading, writing and arithmetic.

# Tag: networks

# All about PageRank

# Modelling networks of enemies and friends

# Visualizing networks

# The Kelmans-Seymour conjecture explained

# Midpoint in India

A brief tour of the PageRank algorithm.… Read More All about PageRank

Common adversaries In recent news, Canada and Mexico decided to coordinate on trade given the uncertainty faced by the US position on NAFTA. In another news story, an infectious disease physician used a virus to fight back an anti-biotic resistant superbug that was killing her husband. We hear of similar stories of unexpected alliances often. In a slogan: enemies of… Read More Modelling networks of enemies and friends

Seeing is believing In my field of graph theory, or network science as it is sometimes called, we study dots and lines, and the patterns formed by the dots joining up with lines. The dots are referred to as nodes and the lines are edges. Networks are combinatorial patterns, analyzed using discrete mathematics. In network science, we… Read More Visualizing networks

Breakthrough! There was exciting news in the mathematics world recently, when it was announced that Xingxing Yu, Yan Wang and Dawei He from Georgia Tech proved the Kelman-Seymour conjecture. The 120-page paper containing the proof has been posted to the preprint server arXiv. Given the length of the paper, it will take time for reviewers to verify it. We… Read More The Kelmans-Seymour conjecture explained

I’m about midway through my India journey. I don’t have much time travelling between conferences in Chennai and Coimbatore, so my post is short. The wifi at the University is also spotty, which makes connectivity a challenge. I’m posting on Tuesday (not my usual Wednesday), as tomorrow is a travel day. Chennai seems to be… Read More Midpoint in India