Delbrin Ahmed

activity

20172024

collaborators

6 papers

math.CO2024

Analyzing Subuniverse Counts in Finite Semilattices: Unveiling the Rankings and Descriptions

Delbrin Ahmed, Muwafaq Salih, Dilbak Haje

Let $(L, \lor)$ be a finite n-element semilattice where $n \geq 5$ . We prove that the fourth largest number of subuniverses of an $n$ -element semilattice is $25 \cdot 2^{n - 5}$ , the fi…

math.CO2024

The Signed Roman Domination Number of Ladder graphs, circular Ladder graphs and their complements

Dilbak Haje, Delbrin Ahmed, Hassan Izanloo +1

Let $G = (V, E)$ be a finite connected simple graph with vertex set $V$ and edge set $E$ . A signed Roman dominating function (SRDF) on a graph $G$ is a function $f: V \rightarrow \{-1…

math.CO2021

(1+1+2)-generated lattices of quasiorders

Delbrin Ahmed, Gábor Czédli

A lattice is $(1 + 1 + 2)$ -generated if it has a four-element generating set such that exactly two of the four generators are comparable. We prove that the lattice Quo $(n)$ of all quas…

math.GM2019

$α$ -Q-fuzzy Subgroups

Muwafaq Salih, Delbrin Ahmed

In this paper, the notations of $α$ -Q-fuzzy subset and $α$ -Q-fuzzy subgroup are introduced, and necessary properties related to these two concepts are proven. In the past part in t…

math.GM2019

Using Fibonacci Number to Integrate 2x2 and 3x3 Martices

Honer Abdullah, Delbrin Ahmed, Muwafaq Salih

The aim of this paper is to make the clarification of images faster by the formula that Franciszekn made for matrices integrations and this made Sukhvinders Algorithm complicate an…

math.AG2017

Geometric constructibility of polygons lying on a circular arc

Delbrin Ahmed, Gábor Czédli, Eszter K. Horváth

For a positive integer $n$ , an $n$ -sided polygon lying on a circular arc or, shortly, an $n$ -fan is a sequence of $n + 1$ points on a circle going counterclockwise such that the "tot…