4,016 reputation
2146
bio website quora.com/Alon-Amit
location Los Altos, CA
age 45
visits member for 5 years, 4 months
seen yesterday

Dabbler in things.


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31
awarded  Nice Answer
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14
awarded  Good Answer
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awarded  Announcer
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awarded  Yearling
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awarded  Nice Answer
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awarded  Curious
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awarded  Good Answer
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awarded  Nice Answer
Oct
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comment Counting graphs up to isomorphism
Question 1 is unclear. Are you allowing nodes with a single child? What version of isomorphism do you have in mind? For full binary trees where L and R are distinct, the number is the Catalan number. There's certainly no "compact formula" for question 3.
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awarded  Enlightened
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awarded  Yearling
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answered the simple group PSL(2,q)
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answered Are trees spectrally determined?
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awarded  Excavator
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awarded  Citizen Patrol
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17
awarded  Popular Question
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9
awarded  Nice Answer
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awarded  Notable Question
May
21
revised Philosophy behind Yitang Zhang's work on the Twin Primes Conjecture
Trying to fix the first two links to Wikipedia