3,086 reputation
31138
bio website cs.elte.hu/~batka
location Budapest
age 43
visits member for 4 years, 3 months
seen 2 hours ago
I work in functional analysis, my research areas are evolution equations, operator semigroups and delay differential equations.

3h
reviewed Reviewed What is the idea behind a projection operator?what does it do?
11h
reviewed Close how to solve a linear equation (Ax-b)T- lamda(c)?
11h
reviewed Close Quotient group of an amalgam
21h
reviewed Close Is the set of singularities of a meromorphic function on a domain in $\mathbb{C}^n$ an analytic variety?
23h
reviewed Close embedding dimension of normal surface singularity
1d
reviewed Reviewed graph edge partitioning for isomorphism testing
1d
reviewed Reviewed How many are there orthogonal transformations?
1d
reviewed Close Probability distribution
1d
reviewed Leave Open The sum of squared logarithms conjecture
1d
reviewed Approve The sum of squared logarithms conjecture
2d
reviewed Reviewed $H^s$ norm of a solution of a nonlinear Schrödinger equation
2d
reviewed Approve The possibility of a symmetric difference in a torsion-free group
2d
reviewed Leave Open Graph on the set of all functions $f:\mathbb{N}\to\mathbb{N}$
May
26
reviewed Close Characterize polytopes resulting from cutting a convex polytope by a hyperplane
May
26
reviewed Close Subgroups of the group $G_2 \times G_2$
May
26
comment Subgroups of the group $G_2 \times G_2$
I'm voting to close this question as off-topic because answered in the comments.
May
26
reviewed Leave Open If $q^k n^2$ is an odd perfect number with Euler prime $q$, are the following statements known to hold in general?
May
26
reviewed Leave Open TVS with null topological dual space
May
25
reviewed Close Definite integral involving Legendre Polynomial
May
25
reviewed Leave Open Consequences of Serre's property FA