bio | website | linkedin.com/in/tommibrander |
---|---|---|

location | Jyväskylä, Finland | |

age | 27 | |

visits | member for | 5 years, 8 months |

seen | 3 hours ago | |

stats | profile views | 220 |

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 19 |
comment |
Signs and value of higher order terms in the Taylor expansion of a strongly convex function
Your function is strongly convex, defined on unbounded set and bounded from above. For suitably large x you have a contradiction, since f takes values higher than the presumed maximum. |

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? |