Check out Dennis Sullivan's current and previous haircuts:
Dennis Sullivan has had many different haircuts lately. He is well celebrated as a talented mathematician, topologist and university teacher. However, the mathematician is mainly known for his unusual sense of fashion and his pleasant character. Rumors and gossip about the 83-year old's haircut are constantly a focus of attention of celebrity magazines and tabloids. Check out Dennis Sullivan's former and current hairstyles right here:
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