H. Daneshpajouh

collaborators

3 papers

math.AT2026

On the Gap Between the Co-Indices of a Free Z_2-Space and Its Suspension

Hamid Reza Daneshpajouh

For a free $Z_{2}$ -space $X$ , the co-index $coind (X)$ is the largest integer $m$ for which there exists a $Z_{2}$ -equivariant map $S^{m} \to X$ , where $S^{m}$ ca…

math.CO2026

The mapping index through the lens of the cross-index

Vuong Bui, Hamid Reza Daneshpajouh, Roman Karasev

We study the cross-index of free $G$-posets as a combinatorial analogue of the equivariant topological index. We demonstrate that the cross-index exhibits many structural propert…

math.CO2025

On the Chromatic Number of Stable Kneser Hypergraphs: Verifying the Conjecture for New Families

Hamid Reza Daneshpajouh

One of the key unsolved conjectures in hypergraph coloring is about the chromatic number of $s$ -stable $r$ -uniform Kneser hypergraphs $KG^{r} (n, k)_{s -stab}$ . The pr…