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Pink Panther's user avatar
Pink Panther
  • Member for 6 years, 7 months
  • Last seen more than a month ago
7 votes
2 answers
2k views

orthogonal projection onto a manifold

6 votes
0 answers
70 views

Minimizing elastic energy of shrinking balls

5 votes
1 answer
701 views

Taylor expansion of $g^{-1/2}$ where $g$ is riemannian metric in normal coordinates

3 votes
1 answer
107 views

Homology of $\mathbb R^n-f(S^r)$, where $f$ is embedding

2 votes
0 answers
33 views

computing generator of $S_n=\alpha+\sum_{k=1}^n X_k$

2 votes
0 answers
137 views

retraction induces short exact sequence of fundamental groups

2 votes
0 answers
305 views

Exercises from Emily Riehl's "Category Theory in Context"

2 votes
0 answers
64 views

Equivalent conditions for local martingales

2 votes
0 answers
47 views

Uniform bound for a family of linear operators on $L^2$

2 votes
3 answers
95 views

estimating $\prod_{i=1}^k a_i\leq \max_i a_i^{p_i}$, where $\sum_i 1/p_i=1$

2 votes
1 answer
80 views

distance function in context of elastic energy of non euclidean thin bodies

1 vote
2 answers
171 views

Distance of matrix to $\mbox{SO}(n)$ w.r.t. Frobenius norm

1 vote
1 answer
68 views

proving existence of a particular linear operator on the space of bounded functions

1 vote
0 answers
507 views

Convolution of bounded Lipschitz function with heat kernel solves the heat equation

1 vote
1 answer
336 views

finding isometries between tangent spaces

1 vote
0 answers
26 views

approximating functions in $W^{1,2}$ with Lipschitz functions with image contained in fixed ball

1 vote
0 answers
59 views

Korn's inequality implies existence of skew symmetric $w$ such that $\|df-w\|_{L^2}\leq C'\|\mathrm{Sym}\, df\|_{L^2}$

1 vote
1 answer
361 views

extending ring homomorphism into fields

1 vote
0 answers
226 views

surface metric in normal coordinates and gaussian curvature

1 vote
1 answer
144 views

Poincaré inequality for Lipschitz functions with bounded domain

1 vote
1 answer
1k views

Homologous paths which are not homotopic

1 vote
0 answers
30 views

$\liminf_r\sup\frac{|u(x)-u(y)|}{r}$ is upper gradient if $u$ is Lipschitz

1 vote
1 answer
115 views

Homology of $S^n-K$ is acyclic, where $K$ is union of 2 disks

0 votes
0 answers
233 views

derivation of Jacobi field equation (from do Carmo's riemannian geometry)

0 votes
1 answer
160 views

what is $W^{-1,2}$?

0 votes
1 answer
108 views

decomposing differentiable function into difference of monotonic functions

0 votes
1 answer
900 views

What is the $TT^*$ method?

0 votes
2 answers
154 views

pointwise approximation to the identity

0 votes
1 answer
139 views

Is $\sqrt g$ a pointwise isometry of metric spaces if $g$ is riemannian metric?

0 votes
1 answer
254 views

constructing pushout