Roman Vershynin

collaborators

2 papers

math.FA2024

Jackson's inequality on the hypercube

Paata Ivanisvili, Roman Vershynin, Xinyuan Xie

We investigate the best constant $J (n, d)$ such that Jackson's inequality \[ \inf_{\mathrm{deg}(g) \leq d} \|f - g\|_{\infty} \leq J(n,d) \, s(f), \] holds for all functions $f$ on…

math.CO2024

Hamiltonicity of Sparse Pseudorandom Graphs

Asaf Ferber, Jie Han, Dingjia Mao +1

We show that every $(n, d, λ)$ -graph contains a Hamilton cycle for sufficiently large $n$ , assuming that $d \geq lo g^{6} n$ and $λ \leq c d$ , where $c = \frac{1}{70000}$ . This significant…