D. Yaqubi

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20142026

most citedSome properties of Zumkeller numbers and

k

-layered numbers

6 citations · 6 across the 12 of their papers we have counts for

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math.GM2026

A Combinatorial Problem in Cinema Seating

Madjid Mirzavaziri, Daniel Yaqubi

We address a problem concerning cinema audiences: ``A cinema has $n$ seats numbered from $1$ to $n$ , and there are $n$ people with tickets numbered from $1$ to $n$ . People enter th…

math.GM2017

Lattice paths inside a table, II

Daniel Yaqubi, Mohammad Farrokhi Derakhshandeh Ghouchan, Mohamad Zamani khademanlu

Consider an $m \times n$ table $T$ and latices paths $ν_{1}, \dots, ν_{k}$ in $T$ such that each step $ν_{i + 1} - ν_{i} = (1, 1)$ , $(1, 0)$ or $(1, - 1)$ . The number of paths from the $(1, i)$ -blank…