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64 Answers

newest activity votes
6
$\sigma(x)$ has no hole in the algebra of polynomials
5
How much can a weak derivative differ from a classical one?
5
There is no isometry between a sphere and a plane.
4
How would you define a geodesic in $\operatorname{SO}(2n)$ and $\operatorname{SO}(2n+1)$?
4
Regarding the definition of connections (covariant derivatives)
4
Kähler form is harmonic
4
How to define a connection on the dual bundle?
4
A tough differential calculus problem
4
Manifold with different differential structure but diffeomorphic
3
Open sets of the tangent bundle in a Riemannian manifold
3
Convergence of $\sum_{n=2}^\infty \frac{1}{n^\alpha \ln^\beta (n)} $
3
fixed point of homeomorphism and compactness of a complete metric space.
3
Doubts about linearity of definite integration.
3
Completing squares by symplectic transformations
3
What is the use of $H_s$ for non-integer $s$?
3
Is a meromorphic function with essential singularity complex differentiable at it as a function to the Riemann sphere?
3
Exterior derivative of a complicated differential form
3
Equivalence of two definitions of differentiablitity on Regular Surfaces
2
Holomorphic function's boundedness
2
Directional derivative of vector field
2
Determinants of block matrices
2
induced connection on open sets
2
Using Green's theorem to compute an area of a region
2
Getting Practice on Finding Charts for a Manifold
2
What is the counter example?
2
Is there a faster way to do this? Find an orthogonal matrix $P$ and a diagonal matrix $D$ such that $A=PDP^T$
2
Invariant subspaces of specific dimension
2
Weak topology and convergence .
2
Survey papers for PDE?
2
Non-regularity of non-elliptic operator
1 2 3