3 problems

Let $H$ be the Heisenberg group of triangular integer matrices generated by $s$, $t$, and $u$, with relations … Its growth function satisfies $Ak^4\leq\beta(k)\leq Bk^4$, although…

Let $n\geq 2$, and let $f:\mathbb{R}^n\to\mathbb{R}^n$ be an entire quasiregular Yosida mapping, meaning that the family of translates … is normal. Order conjecture. The order of g…

Let $A,B,C,D$ be the entire functions associated with an indeterminate Hamburger moment problem through the Nevanlinna parametrization. Suppose the moment problem has ordinary orde…