2 papers
math.CO2026
Decomposable shuffles
João Dias, Bruno Dinis, Carlos Correia Ramos
We develop a combinatorial and order-theoretic framework for shuffles, understood as ordered concatenations of indexed families of sequences that induce total orders on the natural…
math.AC2024
Bridging Meadows and Sheaves
João Dias, Bruno Dinis, Pedro Macias Marques
We bridge sheaves of rings over a topological space with common meadows (algebraic structures where the inverse for multiplication is a total operation). More specifically, we show…