Morteza Mohammad Noori

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20072026

most citedSome remarks about the derivative operator and generalized Stirling numbers

2 citations · 2 across the 7 of their papers we have counts for

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math.CO2021

Closed Ziv-Lempel factorization of the $m$ -bonacci words

Marieh Jahannia, Morteza Mohammad-noori, Narad Rampersad +1

A word $w$ is said to be closed if it has a proper factor $x$ which occurs exactly twice in $w$ , as a prefix and as a suffix of $w$ . Based on the concept of Ziv-Lempel factorizatio…

math.CO2019

Some properties of $k$ -bonacci words on infinite alphabet

Narges Ghareghani, Pouyeh Sharifani, Morteza Mohammad-Noori

The Fibonacci word $W$ on an infinite alphabet was introduced in [Zhang et al., Electronic J. Combinatorics 2017 24(2), 2-52] as a fixed point of the morphism $2i\rightarrow (2i)(2…

math.CO2010★ 2 cited

Some remarks about the derivative operator and generalized Stirling numbers

M. Mohammad-Noori

Studying expressions of the form $(f (x) D)^{p}$ , where $D = \frac{d}{d x}$ is the derivative operator, goes back to Scherk's Ph.D. thesis in 1823. We show that this can b…

math.CO2007

Inclusion Matrices and Chains

E. Ghorbani, G. B. Khosrovshahi, Ch. Maysoori +1

Given integers $t$ , $k$ , and $v$ such that $0 \leq t \leq k \leq v$ , let $W_{t k} (v)$ be the inclusion matrix of $t$ -subsets vs. $k$ -subsets of a $v$ -set. We modify slightly the concep…

Closed Ziv-Lempel factorization of the m-bonacci words

Some properties of k-bonacci words on infinite alphabet

Some remarks about the derivative operator and generalized Stirling numbers

Inclusion Matrices and Chains

Closed Ziv-Lempel factorization of the $m$ -bonacci words

Some properties of $k$ -bonacci words on infinite alphabet