245 reputation
219
bio website linkedin.com/in/tommibrander
location Jyväskylä, Finland
age 27
visits member for 5 years, 9 months
seen 1 hour ago
Doctoral student at the University of Jyväskylä. Research interests: Calderón problem, non-linear PDE.

Jun
20
revised Number of valid topologies on a finite set of n elements
fixed link
Jun
20
suggested approved edit on Number of valid topologies on a finite set of n elements
Jun
9
revised Basic doubt in a free boundary problem for the Laplacian
spelling, grammar, formatting; the tags are ambiguous
Jun
9
comment Basic doubt in a free boundary problem for the Laplacian
In the question you refer to p-Laplacian but in the equation you use the 2-Laplacian. Is that correct?
Jun
9
suggested approved edit on Basic doubt in a free boundary problem for the Laplacian
Jun
3
revised An inequality for eigenvalues of the Dirichlet problem
fixed grammar
Jun
3
suggested approved edit on An inequality for eigenvalues of the Dirichlet problem
May
27
revised What notions are used but not clearly defined in modern mathematics?
some spelling corrections; more work is needed
Mar
17
comment Fredholm integral with functions constrained to [0;1]
Crossposted to math.SE math.stackexchange.com/questions/1192779/… . Please don't post the same question to several sites at once, or at least provide a link if you do.
Feb
23
comment Extension of Sobolev Functions
Suppose Omega is, say, a square or cube, and u(x) = x_n. Can you solve your problem in this or other simplified situation?
Feb
23
comment probabilistic interpretation of elliptic equation with mixed boundary condition
How much do you already know? Can you establish the probabilistic interpretation in a simpler situation, and if so, why is this more difficult?
Feb
5
comment Mountain Pass theorem for minimization problems with constraints
Linking theorem might be useful. The aforementioned references should contain relevant material.
Feb
5
comment Mountain Pass theorem for minimization problems with constraints
There are generalisations of the theorem: see for example references [17] and [24] in master's thesis of Eero Ruosteenoja: jyx.jyu.fi/dspace/handle/123456789/41049
Feb
5
awarded  Commentator
Feb
5
comment Mountain Pass theorem for minimization problems with constraints
Mountain pass theorem finds saddle points. What are you precisely looking, a minimum of the functional or a saddle point?
Feb
2
revised Space of p-harmonic functions
added a tag
Jan
31
comment Space of p-harmonic functions
@Craig I am aware of Lindqvist's notes. I don't remember them answering this sort of question, but I have not read through them in detail. Can you be more precise with the reference?
Jan
29
revised What is the limit of the derivative of the harmonic extension/Dirichlet solution in $C^{1,\alpha}$ cases?
corrected spelling
Jan
29
suggested approved edit on What is the limit of the derivative of the harmonic extension/Dirichlet solution in $C^{1,\alpha}$ cases?
Jan
29
asked Space of p-harmonic functions