collaborators

7 papers

math.CO2025

Rainbow Turán problems for a matching and any other graph

Dániel Gerbner, Shujing Miao

For a family of graphs $\cF$, a graph is called $\cF$-free if it does not contain any member of $\cF$ as a subgraph. Given a collection of graphs on the same ver…

cs.CC2025

Between the deterministic and non-deterministic query complexity

Dániel Gerbner

We consider problems that can be solved by asking certain queries. The deterministic query complexity of a problem is the smallest number of queries needed to ask in o…

math.CO2025

On degree powers and counting stars in -free graphs

Dániel Gerbner

Given a positive integer and a graph with degree sequence , we define . We let be the largest value of $e_r(G…

math.CO2025

On forbidding graphs as traces of hypergraphs

Dániel Gerbner, Michael E. Picollelli

We say that a hypergraph contains a graph as a trace if there exists some set such that $\mathcal{H}|_S=\{h\cap S: h\in E(\mathcal{H})\}…

math.CO2025

On non-degenerate Turán problems for expansions

Dániel Gerbner

The -uniform expansion of a graph is obtained by enlarging each edge with new vertices such that altogether we use new vertices. Two simple lo…

math.CO2025

On Turán problems with bounded matching number

Dániel Gerbner

Very recently, Alon and Frankl initiated the study of the maximum number of edges in -vertex -free graphs with matching number at most . For fixed and , we determin…