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Nov
18
awarded  Nice Question
Apr
23
comment Composition with a projection remain surjective in a neighborhood of the parameter
so my reasoning is right?
Apr
23
asked Composition with a projection remain surjective in a neighborhood of the parameter
Dec
11
asked method of characteristics in a nutshell
Dec
9
awarded  Caucus
Dec
5
awarded  Popular Question
Aug
28
accepted Prove that $f$ is smooth if $x f$, $y f$ are smooth
Jul
2
awarded  Curious
Jul
2
awarded  Inquisitive
Mar
2
awarded  Yearling
Nov
12
awarded  Tumbleweed
Nov
5
asked Prove that $f$ is smooth if $x f$, $y f$ are smooth
Aug
15
accepted Is this expression for the Riemann Tensor correct?
Aug
15
comment Is this expression for the Riemann Tensor correct?
The c's and the p's are smooth functions on the manifold
Aug
15
asked Is this expression for the Riemann Tensor correct?
Aug
15
accepted What does this notation means in noncommutative case
Aug
14
comment What does this notation means in noncommutative case
But in the page en.wikipedia.org/wiki/Covariant_derivative#Formal_definition they use the notation $V f$ also to indicate the directional derivative of a function along $V$. Then it is misleading to choose one or the other alternative above. How should I interprete?
Aug
14
asked What does this notation means in noncommutative case
Mar
2
awarded  Yearling
Feb
4
accepted Find all the functions which satisfy a given functional equation