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Darryl Johnson's user avatar
Darryl Johnson's user avatar
Darryl Johnson's user avatar
Darryl Johnson
  • Member for 1 year, 5 months
  • Last seen more than 1 year ago
  • Boston, MA
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Ph.D. student at Northeastern University

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Top posts
question
6
Is there a combinatorial interpretation of the arithmetic derivative?
Jun 28, 2023
answer
3
In how many ways the letters of word 'PERSON' can be arranged in the following way
Jul 1, 2023
question
1
What is the differential on the space of trajectories and why does it anti-commute with the regular differential on $\mathbb{R}$?
Jun 30, 2023
answer
1
Not fully understanding the definition of topological invariance
Jul 1, 2023
question
0
Titles by Bertini and Weber alluded to in Gian-Carlo Rota’s foreword to Stanley’s Enumerative Combinatorics
Jul 26, 2023
answer
0
What are the elements of $R\, \times\, S^1$
Jul 3, 2023