Independent double roman domination number of a tree in terms of its 2-independence number Halimeh Koulivand, Mohammad Habibi, Hassan Arianpoor, Mina Valinavaz Discrete Mathematics Algorithms and Applications, 2026 Let [Formula: see text] be a simple graph. An independent double Roman dominating function (IDRDF) on a graph [Formula: see text] is a function [Formula: see text] having the property that first if [Formula: see text], then vertex [Formula: see text] has at least two neighbors assigned [Formula: see text] under [Formula: see text] or one neighbor [Formula: see text] with [Formula: see text]; second if [Formula: see text], then vertex [Formula: see text] must have at least one neighbor [Formula: see text] with [Formula: see text] and third the set of vertices assigned with positive numbers is independent. The weight of an IDRDF [Formula: see text] is equal to [Formula: see text]. The independent double Roman domination number [Formula: see text] is the minimum weight among all IDRDFs of [Formula: see text]. A subset [Formula: see text] of [Formula: see text] is a 2-independent set of [Formula: see text] if every vertex of [Formula: see text] has at most one neighbor in [Formula: see text]. The maximum cardinality of a 2-independent set of [Formula: see text] is the 2-independence number [Formula: see text]. In this paper, it is shown that both parameters are incomparable, in general. Also, we prove that if [Formula: see text] is a tree, then [Formula: see text]. Moreover, all extremal trees attaining equality are characterized.
Piecewise prime property of skew inverse Laurent series rings and related rings Kamal Paykan, Mohammad Habibi, Hassan Arianpoor Journal of Algebra and Its Applications, 2025 Let [Formula: see text] be an arbitrary ring equipped with an automorphism [Formula: see text] and an [Formula: see text]-derivation [Formula: see text]. In this paper, we study on the relationship between the piecewise prime property of a ring [Formula: see text] and these of the skew inverse Laurent series ring [Formula: see text] and related rings. Furthermore, for a piecewise prime ring, we determine a large class of rings which have a generalized triangular matrix representation for which the diagonal rings are prime. Our results extend and unify many available results. Examples for illustration and delimitation of the theory are provided.
On generalized quasi Baer skew monoid rings Mohammad Habibi, Kamal Paykan, Hassan Arianpoor Journal of Algebra and Its Applications, 2024 In this paper, we study generalized right (principally) quasi Baer skew monoid rings. Examples to illustrate and delimit the results are provided.
The Minimum Sombor Index for Unicyclic Graphs with Fixed Diameter Amene Alidadi, , Ali Parsian, Hassan Arianpoor Match, 2022 As a novel member of the class of vertex-degree-based topological indices, the so-called Sombor index was recently introduced by Gutman on the chemical graphs. In this paper, we present the minimum Sombor index for unicyclic graphs with the diameter D>_2.
Independent double roman domination number of a tree in terms of its 2-independence number H Koulivand, M Habibi, H Arianpoor, M Valinavaz Discrete Mathematics, Algorithms and Applications 18 (03), 2550047 , 2026 2026.0
Piecewise prime property of skew inverse Laurent series rings and related rings K Paykan, M Habibi, H Arianpoor Journal of Algebra and Its Applications 24 (12), 2550289 , 2025 2025.0
The Sombor index for unicyclic and bicyclic graphs with given (total) domination number A Alidadi, A Parsian, H Arianpoor Journal of Discrete Mathematics and Its Applications 10 (3), 293-304 , 2025 2025.0
On Harary-Sombor index of graphs M Habibi, A Alidadi, H Arianpoor Communications in Combinatorics and Optimization , 2025 2025.0
Chemical applications of some new versions of Sombor index A Alidadi, H Arianpoor, A Parsian, K Paykan Caspian Journal of Mathematical Sciences 13 (2), 352-367 , 2024 2024.0 Citations: 1
On generalized quasi Baer skew monoid rings M Habibi, K Paykan, H Arianpoor Journal of Algebra and Its Applications 23 (06), 2450112 , 2024 2024.0 Citations: 2
The Minimum Sombor Index for Unicyclic Graphs with Fixed Diameter A Alidadi, A Parsian, H Arianpoor MATCH Communications in Mathematical and in Computer Chemistry 88 (3), 561-572 , 2022 2022.0 Citations: 20
On the lattice of principal generalized topologies H Arianpoor Periodica Mathematica Hungarica 78 (1), 79-87 , 2019 2019.0 Citations: 3
On Generalized Injective Spaces in Generalized Topologies H Arianpoor Journal of New Researches in Mathematics(JNRM) 3 (12), 15-24 , 2017 2017.0
(NON) LINEAR CONNECTIONS ON LIE ALGEBROID TANGENT BUNDLES H Arianpoor 2016.0
Preorder relators and generalized topologies H Arianpoor Journal of Linear and Topological Algebra(JLTA) 5 (4), 271-277 , 2016 2016.0 Citations: 26
On baer type criterion for C-dense, C-closed and quasi injectivity H Barzegar, H Arianpoor Journal of Linear and Topological Algebra (JLTA) 5 (2), 105-109 , 2016 2016.0
Integrable Dirac Structures on Lie Algebroids H Arianpoor 8th Seminar on Geometry and Topology, 153 , 2015 2015.0
A ⋆-differential calculus on functionally quantized N-space H Arianpoor, V Milani Journal of Advanced Research in Pure Mathematics 4 (2), 97-111 , 2012 2012.0
The Space of Integrable Dirac Structures on Hilbert C*-Modules V Milani, SMH Mansourbeigi, H Arianpoor arXiv preprint arXiv:0908.0178 , 2009 2009.0
The Sombor Index of Unicyclic Graphs with given Diameter A Alidadi, A Parsian, H Arianpoor
MOST CITED SCHOLAR PUBLICATIONS
Preorder relators and generalized topologies H Arianpoor Journal of Linear and Topological Algebra(JLTA) 5 (4), 271-277 , 2016 2016.0 Citations: 26
The Minimum Sombor Index for Unicyclic Graphs with Fixed Diameter A Alidadi, A Parsian, H Arianpoor MATCH Communications in Mathematical and in Computer Chemistry 88 (3), 561-572 , 2022 2022.0 Citations: 20
On the lattice of principal generalized topologies H Arianpoor Periodica Mathematica Hungarica 78 (1), 79-87 , 2019 2019.0 Citations: 3
On generalized quasi Baer skew monoid rings M Habibi, K Paykan, H Arianpoor Journal of Algebra and Its Applications 23 (06), 2450112 , 2024 2024.0 Citations: 2
Chemical applications of some new versions of Sombor index A Alidadi, H Arianpoor, A Parsian, K Paykan Caspian Journal of Mathematical Sciences 13 (2), 352-367 , 2024 2024.0 Citations: 1
Independent double roman domination number of a tree in terms of its 2-independence number H Koulivand, M Habibi, H Arianpoor, M Valinavaz Discrete Mathematics, Algorithms and Applications 18 (03), 2550047 , 2026 2026.0
Piecewise prime property of skew inverse Laurent series rings and related rings K Paykan, M Habibi, H Arianpoor Journal of Algebra and Its Applications 24 (12), 2550289 , 2025 2025.0
The Sombor index for unicyclic and bicyclic graphs with given (total) domination number A Alidadi, A Parsian, H Arianpoor Journal of Discrete Mathematics and Its Applications 10 (3), 293-304 , 2025 2025.0
On Harary-Sombor index of graphs M Habibi, A Alidadi, H Arianpoor Communications in Combinatorics and Optimization , 2025 2025.0
On Generalized Injective Spaces in Generalized Topologies H Arianpoor Journal of New Researches in Mathematics(JNRM) 3 (12), 15-24 , 2017 2017.0
(NON) LINEAR CONNECTIONS ON LIE ALGEBROID TANGENT BUNDLES H Arianpoor 2016.0
On baer type criterion for C-dense, C-closed and quasi injectivity H Barzegar, H Arianpoor Journal of Linear and Topological Algebra (JLTA) 5 (2), 105-109 , 2016 2016.0
Integrable Dirac Structures on Lie Algebroids H Arianpoor 8th Seminar on Geometry and Topology, 153 , 2015 2015.0
A ⋆-differential calculus on functionally quantized N-space H Arianpoor, V Milani Journal of Advanced Research in Pure Mathematics 4 (2), 97-111 , 2012 2012.0
The Space of Integrable Dirac Structures on Hilbert C*-Modules V Milani, SMH Mansourbeigi, H Arianpoor arXiv preprint arXiv:0908.0178 , 2009 2009.0
The Sombor Index of Unicyclic Graphs with given Diameter A Alidadi, A Parsian, H Arianpoor