Skip to main content

Research Repository

Advanced Search

All Outputs (33)

Automated construction of variable density navigable networks in a 3D indoor environment for emergency response (2016)
Journal Article
Boguslawski, P., Mahdjoubi, L., Zverovich, V., & Fadli, F. (2016). Automated construction of variable density navigable networks in a 3D indoor environment for emergency response. Automation in Construction, 72(2), 115-128. https://doi.org/10.1016/j.autcon.2016.08.041

© 2016 Elsevier B.V. Widespread human-induced or natural threats on buildings and their users have made preparedness and rapid response crucial issues for saving human lives. The ability to identify the paths of egress during an emergency is critical... Read More about Automated construction of variable density navigable networks in a 3D indoor environment for emergency response.

The probabilistic approach to limited packings in graphs (2015)
Journal Article
Zverovich, V., & Gagarin, A. (2015). The probabilistic approach to limited packings in graphs. Discrete Applied Mathematics, 184, 146-153. https://doi.org/10.1016/j.dam.2014.11.017

© 2014 Elsevier B.V. All rights reserved. We consider (closed neighbourhood) packings and their generalization in graphs. A vertex set X in a graph G is a k-limited packing if for every vertex vεV(G), |N[v]∩X|≤k, where N[v] is the closed neighbourhoo... Read More about The probabilistic approach to limited packings in graphs.

Braess' paradox in a generalised traffic network (2014)
Journal Article
Zverovich, V., & Avineri, E. (2015). Braess' paradox in a generalised traffic network. Journal of Advanced Transportation, 49(1), 114-138. https://doi.org/10.1002/atr.1269

Copyright © 2014 John Wiley & Sons, Ltd. Braess' paradox illustrates situations when adding a new link to a transport network might lead to an equilibrium state in which travel times of users will increase. The classical network configuration intro... Read More about Braess' paradox in a generalised traffic network.

Randomized algorithms and upper bounds for multiple domination in graphs and networks (2013)
Journal Article
Gagarin, A., Poghosyan, A., & Zverovich, V. (2013). Randomized algorithms and upper bounds for multiple domination in graphs and networks. Discrete Applied Mathematics, 161(4-5), 604-611. https://doi.org/10.1016/j.dam.2011.07.004

We consider four different types of multiple domination and provide new improved upper bounds for the k- and k-tuple domination numbers. They generalize two classical bounds for the domination number and are better than a number of known upper bounds... Read More about Randomized algorithms and upper bounds for multiple domination in graphs and networks.

The bondage number of graphs on topological surfaces and Teschner's conjecture (2013)
Journal Article
Zverovich, V., & Gagarin, A. (2013). The bondage number of graphs on topological surfaces and Teschner's conjecture. Discrete Mathematics, 313(6), 796-808. https://doi.org/10.1016/j.disc.2012.12.018

The bondage number of a graph is the smallest number of its edges whose removal results in a graph having a larger domination number. We provide constant upper bounds for the bondage number of graphs on topological surfaces, and improve upper bounds... Read More about The bondage number of graphs on topological surfaces and Teschner's conjecture.

On Roman, Global and Restrained Domination in Graphs (2011)
Journal Article
Zverovich, V., & Poghosyan, A. (2011). On Roman, Global and Restrained Domination in Graphs. Graphs and Combinatorics, 27(5), 755-768. https://doi.org/10.1007/s00373-010-0992-z

In this paper, we present new upper bounds for the global domination and Roman domination numbers and also prove that these results are asymptotically best possible. Moreover, we give upper bounds for the restrained domination and total restrained do... Read More about On Roman, Global and Restrained Domination in Graphs.

The domination parameters of cubic graphs (2005)
Journal Article
Zverovich, I. E., & Zverovich, V. (2005). The domination parameters of cubic graphs. Graphs and Combinatorics, 21(2), 277-288. https://doi.org/10.1007/s00373-005-0608-1

Let ir(G), γ(G), i(G), β0(G), Γ(G) and IR(G) be the irredundance number, the domination number, the independent domination number, the independence number, the upper domination number and the upper irredundance number of a graph G, respectively. In t... Read More about The domination parameters of cubic graphs.

Basic perfect graphs and their extensions (2005)
Journal Article
Zverovich, I. E., & Zverovich, V. (2005). Basic perfect graphs and their extensions. Discrete Mathematics, 293(1-3), 291-311. https://doi.org/10.1016/j.disc.2004.08.033

In this article, we present a characterization of basic graphs in terms of forbidden induced subgraphs. This class of graphs was introduced by Conforti et al. (Square-free perfect graphs, J. Combin. Theory Ser. B, 90 (2) (2004) 257-307), and it plays... Read More about Basic perfect graphs and their extensions.

Locally well-dominated and locally independent well-dominated graphs (2003)
Journal Article
Zverovich, I., & Zverovich, V. (2003). Locally well-dominated and locally independent well-dominated graphs. Graphs and Combinatorics, 19(2), 279-288. https://doi.org/10.1007/s00373-002-0507-7

In this article we present characterizations of locally well-dominated graphs and locally independent well-dominated graphs, and a sufficient condition for a graph to be k-locally independent well-dominated. Using these results we show that the irred... Read More about Locally well-dominated and locally independent well-dominated graphs.

Proof of a conjecture on irredundance perfect graphs (2002)
Journal Article
Volkmann, L., & Zverovich, V. (2002). Proof of a conjecture on irredundance perfect graphs. Journal of Graph Theory, 41(4), 292-306. https://doi.org/10.1002/jgt.10068

Let ir(G) and γ(G) be the irredundance number and the domination number of a graph G, respectively. A graph G is called irredundance perfect if ir(H) = γ(H), for every induced subgraph H of G. In this article we present a result which immediately imp... Read More about Proof of a conjecture on irredundance perfect graphs.

A disproof of Henning's conjecture on irredundance perfect graphs (2002)
Journal Article
Volkmann, L., & Zverovich, V. (2002). A disproof of Henning's conjecture on irredundance perfect graphs. Discrete Mathematics, 254(1-3), 539-554. https://doi.org/10.1016/S0012-365X%2801%2900300-4

Let ir(G) and γ(G) be the irredundance number and the domination number of a graph G, respectively. A graph G is called irredundance perfect if ir(H) = γ(H), for every induced subgraph H of G. In this paper, we disprove the known conjecture of Hennin... Read More about A disproof of Henning's conjecture on irredundance perfect graphs.

Perfect graphs of strong domination and independent strong domination (2001)
Journal Article
Zverovich, V. E., Rautenbach, D., & Zverovich, V. (2001). Perfect graphs of strong domination and independent strong domination. Discrete Mathematics, 226(1-3), 297-311. https://doi.org/10.1016/S0012-365X%2800%2900116-3

Let γ(G), i(G), γs(G) and is(G) denote the domination number, the independent domination number, the strong domination number and the independent strong domination number of a graph G, respectively. A graph G is called γi-perfect (domination perfect)... Read More about Perfect graphs of strong domination and independent strong domination.

A semi-induced subgraph characterization of upper domination perfect graphs (1999)
Journal Article
Zverovich, V. E., Zverovich, I. E., Zverovich, I., & Zverovich, V. (1999). A semi-induced subgraph characterization of upper domination perfect graphs. Journal of Graph Theory, 31(1), 29-49. https://doi.org/10.1002/%28SICI%291097-0118%28199905%2931%3A1%3C29%3A%3AAID-JGT4%3E3.0.CO%3B2-G

Let β(G) and Γ(G) be the independence number and the upper domination number of a graph G, respectively. A graph G is called Γ-perfect if β(H) = Γ(H), for every induced subgraph H of G. The class of Γ-perfect graphs generalizes such well-known classe... Read More about A semi-induced subgraph characterization of upper domination perfect graphs.

Upper domination and upper irredundance perfect graphs (1998)
Journal Article
Gutin, G., & Zverovich, V. (1998). Upper domination and upper irredundance perfect graphs. Discrete Mathematics, 190(1-3), 95-105. https://doi.org/10.1016/S0012-365X%2898%2900036-3

Let β(G), Γ(G) and IR(G) be the independence number, the upper domination number and the upper irredundance number, respectively. A graph G is called Γ-perfect if β(H) = Γ(H), for every induced subgraph H of G. A graph G is called IR-perfect if Γ(H)... Read More about Upper domination and upper irredundance perfect graphs.

Line hypergraphs: A survey (1998)
Journal Article
Tyshkevich, R., & Zverovich, V. (1998). Line hypergraphs: A survey. Acta Applicandae Mathematicae, 52(1), 209-222. https://doi.org/10.1023/A%3A1005963110362

The survey is devoted to line graphs and a new multivalued function L called the line hypergraph. This function generalizes two classical concepts at once, namely the line graph and the dual hypergraph. In a certain sense, line graphs and dual hyperg... Read More about Line hypergraphs: A survey.

The Ratio of the Irredundance Number and the Domination Number for Block-Cactus Graphs (1998)
Journal Article
Zverovich, V. (1998). The Ratio of the Irredundance Number and the Domination Number for Block-Cactus Graphs. Journal of Graph Theory, 29(3), 139-149. https://doi.org/10.1002/%28SICI%291097-0118%28199811%2929%3A3%3C139%3A%3AAID-JGT2%3E3.0.CO%3B2-R

Let γ(G) and ir(G) denote the domination number and the irredundance number of a graph G, respectively. Allan and Laskar [Proc. 9th Southeast Conf. on Combin., Graph Theory & Comp. (1978) 43-56] and Bollobás and Cockayne [J. Graph Theory (1979) 241-2... Read More about The Ratio of the Irredundance Number and the Domination Number for Block-Cactus Graphs.