Rafael Chiclana

activity

20212026

most citedA local central limit theorem for random walks on expander graphs

2 citations · 2 across the 11 of their papers we have counts for

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4 papers · 1 filter

math.PR2026

Poisson occupancy of paths on permuted regular graphs

Rafael Chiclana

In the classical occupancy problem, $B$ balls are placed independently and uniformly into $d$ boxes. We study a graph analogue of this model. Let $G$ be a directed $r$ -regular grap…

math.PR2026

Randomly Permuted Orthogonal Products and Fast Dimension Reduction

Rafael Chiclana

We study the effect of random signed permutations on products of orthogonal matrices and their applications to fast dimension reduction. Let $A, B \in R^{d \times d}$ be ort…

math.FA2026

Hereditary Diameter Rigidity in Real $L_{1}$ -Spaces

Rafael Chiclana

We prove that hereditary diameter lower bounds are stable under convex combinations in real $L_{1}$ -spaces over arbitrary measure spaces. More precisely, if every weakly open piece o…

math.PR2026

Nonconcentration of hitting times for random walks on graphs

Rafael Chiclana

We study nonconcentration of hitting times for simple random walk on finite graphs. We prove that, for every connected graph with $n$ vertices, \[ \operatorname{Var}_x(τ_y)+\mathbb…

Poisson occupancy of paths on permuted regular graphs

Randomly Permuted Orthogonal Products and Fast Dimension Reduction

Hereditary Diameter Rigidity in Real L1​-Spaces

Nonconcentration of hitting times for random walks on graphs

Hereditary Diameter Rigidity in Real $L_{1}$ -Spaces