# Recent history for Theo Johnson-Freyd

1
year
ago
 received upvote on question What is the symbol of a differential operator?
2
years
ago
 received upvote on question What is the symbol of a differential operator?
2
years
ago
 posted a comment Which commutative algebras admit a nonzero Poisson bracket?
2
years
ago
 posted a comment Which commutative algebras admit a nonzero Poisson bracket?
2
years
ago
 posted a comment Is the quantum algebra unique (up to isomorphism) in deformation quantization ?
2
years
ago
 posted a comment Is the quantum algebra unique (up to isomorphism) in deformation quantization ?
2
years
ago
 posted a comment Is the quantum algebra unique (up to isomorphism) in deformation quantization ?
2
years
ago
 posted a comment Is the quantum algebra unique (up to isomorphism) in deformation quantization ?
2
years
ago
 posted a comment Is the quantum algebra unique (up to isomorphism) in deformation quantization ?
2
years
ago
 posted a comment Is the quantum algebra unique (up to isomorphism) in deformation quantization ?
2
years
ago
 received upvote on question What is the symbol of a differential operator?
2
years
ago
 question answered What is the symbol of a differential operator?
2
years
ago
 question answered What is the symbol of a differential operator?
2
years
ago
 question answered What is the symbol of a differential operator?
2
years
ago
 question answered What is the symbol of a differential operator?
2
years
ago
 question answered What is the symbol of a differential operator?
2
years
ago
 question answered What is the symbol of a differential operator?
2
years
ago
 posted a comment What is the symbol of a differential operator?
2
years
ago
 received upvote on question What is the symbol of a differential operator?
2
years
ago
 received upvote on question What is the symbol of a differential operator?