Giuseppe

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86 Answers

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7
Deriving the form of the Exponential Integral from a given integral
6
Does the identity $\det(I+g^{-1})\det(I+g)=|\det(g-I)|^2$ hold for $g \in U(n)$?
5
left-invariant vector field: counterexample
5
Learning differential/Riemannian geometry for PDEs
5
is the geodesic flow on Hyperbolic Plane completely integrable?
5
Does a non-zero wedge product make a coordinate system?
5
If $[G:H]=n$, then $g^{n!}\in H$ for all $g\in G$.
4
Continuous maps between compact manifolds are homotopic to smooth ones
4
Inequalities in $l_p$ norm
4
Eigenvalues of ad (Adjoint action)
4
How to express $\cosh(4x)$ as a polynomial in $\cosh(x)$
3
When does the $\mathfrak g$-invariance of the symplectic form imply $G$-invariance?
3
Symplectic Chart
3
interior product - proof of the basic fomula
3
Duals via a Bilinear map
3
Geodesics that self-intersect at finitely many points
3
A question about Banach reflexive space
3
Compactness of the set of all unitary matrices in $M_2(\mathbb{C})$
3
A 'should be simple' derivative
3
Is there relationship between magnitude of matrix-vector multiplication and determinant of that matrix?
3
An example of a derivation at a point on a $C^k$-manifold which is not a tangent vector
3
Coordinate-free techniques in Lagrangian mechanics
2
KAM theory and the Ergodic hypothesis
2
Compute the differential of a smooth map
2
Continuity of the orthogonal projection into tangent space.
2
Show that the unit sphere is strictly convex
2
Zero Locus of Functions is a Submanifold
2
Intertwiner in german?
2
Coordinate-free method to determine local maxima/minima?
2
$B(V,W)$ is complete if $W$ is
1 2 3