A. Shapiro

collaborators

2 papers

math.CO2026

A linear upper bound for zero-sum Ramsey numbers of bounded degree graphs

Jasmin Katz, Xiaopan Lian, Alexandru Malekshahian +1

Let $G$ be a graph and $I^$ a finite abelian group. The zero-sum Ramsey number of $G$ over $I^$ , denoted by $R (G, I^)$ , is the smallest positive integer $t$ (if it exists) such tha…

math.QA2025

Quantum $S L^{+} (N, R)$ as a locally compact quantum group

K. De Commer, G. Schrader, A. Shapiro +1

We construct the first examples of purely continuous, $q$ -deformed Lie type locally compact quantum groups in higher rank. They arise from Drinfeld-Jimbo quantization, at unimodula…

A linear upper bound for zero-sum Ramsey numbers of bounded degree graphs

Quantum SL+(N,R) as a locally compact quantum group

Quantum $S L^{+} (N, R)$ as a locally compact quantum group