1 year ago

HLF Review 2016


Participants Collaboration (in Cartoons) Ben Orlin (member of the 4th HLF Blog Team) Mathematics is lonely work. Or so the romantic stereotype has it: the lone genius in an empty library. The sage on the mountaintop. Andrew Wiles in the attic. But most mathematical work is profoundly collaborative. I caught four young researchers between events, and gave them the prompt: On one piece of paper, show me the essence of good collaboration. Their drawings? Four different flavors of brilliant. First, from Ana Djurdjevac, born in Serbia and now studying partial differential equations: “Their own Eden,” I said. “The sun and the moon represent day and night,” Ana said. “So they work hard?” “Yes, and each person plays a different role,” she said. Then Ana pointed to her stick figures, from left to right. “He is listening. She is teaching. He is asking a question. And she is angry.” “Angry?” I asked. “Is that important for collaboration?” “Oh yes!” Ana said. “Someone must bring the anger.” Second, from Lashi Bandara, from Australia and now studying harmonic analysis: In pursuing PDEs, Ana perhaps missed her other calling: as a painter specializing in stark symbolism. “First, you need different types of people,” she explained. “Men and women. Standing and sitting.” “Gray and purple,” I added. “They all share the same space,” she said, pointing to the stage-like center of her drawing. Lashi is effusively social, with a fondness for vulgar humor – I had to warn him to keep it PG-rated. He was disappointed, but resilient. “Can I at least draw a beer?” he asked. Lashi produced three playful sketches showing the three pillars of good collaboration, Bandara-style. First, communication: sharing a blackboard, and sharing thoughts. 54

Participants Second, socializing — although Lashi mused that his handwriting looks more like “socialism.” “That also works,” he said. Thirdly, diversity — for which Lashi drew two topologically distinct objects, representing topologically distinct people. “So that torus-person cannot be smoothly deformed into a sphere-?” I said. Personally, if I ran an MBA program, I would totally build Tan’s illuminating charts into the coursework. And finally, from Helena Andres Terre, born in Spain and now studying computational biology: “Yes and that’s the essence of diversity!” Lashi agreed. Third, from Chenhao Tan, born in China and now studying social networks: Helena’s cartoon is equal parts cynicism and inspiration. “So the guy with the roller skates is just coasting, isn’t he?” I asked. “No,” she insisted. “You need him. The collaboration needs someone providing the carrot.” As befits his academic interests, Tan laid out two different graph theoretic models of collaboration: efficient and inefficient. In an efficient collaboration, everyone is connected, offering compliments and constructive discussion. But in an inefficient one, the hierarchy is strict. (Graph theorists would call it a tree.) Authoritarianism reigns, and there is no goodwill between collaborators. “So the carrot is like the question being asked?” I said. “It could be,” Helena replied. “It’s whatever drives the project forward, gives it a goal.” “And which one are you?” I asked. Helena, still working on her PhD at Cambridge University, pointed to the one on the bike. Then she smiled. “But, someday…” she said, and her finger moved towards the other figure. 55