G. Dall’Ara

activity

20132026

most citedAn optimal multiplier theorem for Grushin operators in the plane, I

6 citations · 29 across the 23 of their papers we have counts for

collaborators

Showing 2026Show all

4 papers · 1 filter

math.AP2026

Obstructions to exact regularity of sublaplacians

Gian Maria Dall'Ara

Let $M$ be a closed manifold equipped with a collection of smooth real vector fields $X_{1}, \dots, X_{k}$ and a smooth measure $μ$ . Let $P := \sum_{j} X_{j}^{†} X_{j}$ be the associated…

math.MG2026

Exponential improvements in Rado's covering problem

Gian Maria Dall'Ara, Adrian Dumitrescu

Let $B^{d}$ denote the $d$ -dimensional Euclidean ball of unit radius. What is the largest constant $f (B^{d}) \in [0, 1]$ with the property that every finite collection $C$ of…

math.MG2026

Rado's covering problem for cubes and balls: a semi-survey

Gian Maria Dall'Ara, Adrian Dumitrescu

What is the largest constant $c \in [0, 1]$ with the property that every finite collection $C$ of axis-parallel squares in the plane admits a disjoint sub-collection $\math…

math.GT2026

Bounded cohomology classes from differential forms

Gian Maria Dall'Ara, Roberto Frigerio, Ervin Hadziosmanovic

Let $M$ be a complete hyperbolic $n$ -manifold, $n \geq 2$ . Via integration over geodesic simplices, any closed bounded differential 2-form on $M$ defines a bounded cohomology class…