Johannes H. Hattingh

According to our database, Johannes H. Hattingh authored at least 55 papers between 1990 and 2024.

Collaborative distances:

• Dijkstra number of three.
• Erdős number of two.

2024

The <i>k</i> -Ramsey number of two five cycles.

Johannes H. Hattingh, Elizabeth Jonck, Ronald J. Maartens

AKCE Int. J. Graphs Comb., 2024

2018

Some multicolor bipartite Ramsey numbers involving cycles and a small number of colors.

Johannes H. Hattingh, Ernst J. Joubert

Discret. Math., 2018

2017

Total domination in maximal outerplanar graphs.

Michael Dorfling, Johannes H. Hattingh, Elizabeth Jonck

Discret. Appl. Math., 2017

2016

Equality in a bound that relates the size and the restrained domination number of a graph.

Johannes H. Hattingh, Ernst J. Joubert

J. Comb. Optim., 2016

Nordhaus-Gaddum Results for the Induced Path Number of a Graph When Neither the Graph Nor Its Complement Contains Isolates.

Johannes H. Hattingh, Osama A. Saleh, Lucas C. van der Merwe, Terry J. Walters

Graphs Comb., 2016

Total domination in maximal outerplanar graphs II.

Michael Dorfling, Johannes H. Hattingh, Elizabeth Jonck

Discret. Math., 2016

2014

Some Bistar Bipartite Ramsey Numbers.

Johannes H. Hattingh, Ernst J. Joubert

Graphs Comb., 2014

2012

A Nordhaus-Gaddum-type result for the induced path number.

Johannes H. Hattingh, Osama A. Saleh, Lucas C. van der Merwe, Terry J. Walters

J. Comb. Optim., 2012

Total edge critical graphs with leaves.

Johannes H. Hattingh, Nader Jafari Rad, Sayyed Heidar Jafari, Marc Loizeaux, John Matthews, Lucas C. van der Merwe

Discret. Math., 2012

2011

Restrained domination in cubic graphs.

Johannes H. Hattingh, Ernst J. Joubert

J. Comb. Optim., 2011

2010

An upper bound on the total restrained domination number of a tree.

Johannes H. Hattingh, Elizabeth Jonck, Ernst J. Joubert

J. Comb. Optim., 2010

Bounds on the Total Restrained Domination Number of a Graph.

Johannes H. Hattingh, Elizabeth Jonck, Ernst J. Joubert

Graphs Comb., 2010

A Note on Restrained Domination in Trees.

Johannes H. Hattingh, Andrew R. Plummer

Ars Comb., 2010

2009

Restrained Domination in Claw-Free Graphs with Minimum Degree at Least Two.

Johannes H. Hattingh, Ernst J. Joubert

Graphs Comb., 2009

Restrained domination in unicyclic graphs.

Johannes H. Hattingh, Ernst J. Joubert, Marc Loizeaux, Andrew R. Plummer, Lucas C. van der Merwe

Discuss. Math. Graph Theory, 2009

A characterization of lambda_{d, 1}-minimal trees and other attainable classes.

Elizabeth Jonck, Johannes H. Hattingh, Charl J. Ras

Discret. Math., 2009

An upper bound for the restrained domination number of a graph with minimum degree at least two in terms of order and minimum degree.

Johannes H. Hattingh, Ernst J. Joubert

Discret. Appl. Math., 2009

Bounds relating the weakly connected domination number to the total domination number and the matching number.

Johannes H. Hattingh, Michael A. Henning

Discret. Appl. Math., 2009

A class of full (d, 1)-colorable trees.

Johannes H. Hattingh, Elizabeth Jonck, Charl J. Ras

Australas. J Comb., 2009

2008

Restrained bondage in graphs.

Johannes H. Hattingh, Andrew R. Plummer

Discret. Math., 2008

Nordhaus-Gaddum results for restrained domination and total restrained domination in graphs.

Johannes H. Hattingh, Elizabeth Jonck, Ernst J. Joubert, Andrew R. Plummer

Discret. Math., 2008

Restrained Domination Excellent Trees.

Johannes H. Hattingh, Michael A. Henning

Ars Comb., 2008

On the domination number of Hamiltonian graphs with minimum degree six.

Hua-ming Xing, Johannes H. Hattingh, Andrew R. Plummer

Appl. Math. Lett., 2008

2007

Total restrained domination in trees.

Johannes H. Hattingh, Elizabeth Jonck, Ernst J. Joubert, Andrew R. Plummer

Discret. Math., 2007

On equality in an upper bound for the restrained and total domination numbers of a graph.

Peter Dankelmann, David P. Day, Johannes H. Hattingh, Michael A. Henning, Lisa R. Markus, Henda C. Swart

Discret. Math., 2007

2006

Trees with Equal Domination and Restrained Domination Numbers.

Peter Dankelmann, Johannes H. Hattingh, Michael A. Henning, Henda C. Swart

J. Glob. Optim., 2006

Algorithmic aspects of total k-subdomination in graphs.

Laura M. Harris, Johannes H. Hattingh, Michael A. Henning

Discuss. Math. Graph Theory, 2006

Algorithmic aspects of minus total k-subdomination in graphs.

Laura M. Harris, Johannes H. Hattingh, Michael A. Henning

Australas. J Comb., 2006

Total k-subdominating functions on graphs.

Laura M. Harris, Johannes H. Hattingh, Michael A. Henning

Australas. J Comb., 2006

2005

Augmenting a graph of minimum degree 2 to have two disjoint total dominating sets.

Michael Dorfling, Wayne Goddard, Johannes H. Hattingh, Michael A. Henning

Discret. Math., 2005

On weakly connected domination in graphs II.

Gayla S. Domke, Johannes H. Hattingh, Lisa R. Markus

Discret. Math., 2005

2004

Maximum sizes of graphs with given domination parameters.

Peter Dankelmann, Gayla S. Domke, Wayne Goddard, Paul J. P. Grobler, Johannes H. Hattingh, Henda C. Swart

Discret. Math., 2004

The algorithmic complexity of certain functional variations of total domination in graphs.

Laura M. Harris, Johannes H. Hattingh

Australas. J Comb., 2004

2002

On parameters related to strong and weak domination in graphs.

Gayla S. Domke, Johannes H. Hattingh, Lisa R. Markus, Elna Ungerer

Discret. Math., 2002

2000

Characterizations of trees with equal domination parameters.

Johannes H. Hattingh, Michael A. Henning

J. Graph Theory, 2000

Restrained domination in trees.

Gayla S. Domke, Johannes H. Hattingh, Michael A. Henning, Lisa R. Markus

Discret. Math., 2000

1999

Restrained domination in graphs.

Gayla S. Domke, Johannes H. Hattingh, Stephen T. Hedetniemi, Renu C. Laskar, Lisa R. Markus

Discret. Math., 1999

Domination Using Induced Cliques in Graphs.

Jean E. Dunbar, Johannes H. Hattingh, Renu C. Laskar, Lisa R. Markus

Ars Comb., 1999

1998

The signed and minus k-subdomination numbers of comets.

Johannes H. Hattingh, Elna Ungerer

Discret. Math., 1998

Star-path bipartite Ramsey numbers^,.

Johannes H. Hattingh, Michael A. Henning

Discret. Math., 1998

Partial signed domination in graphs.

Johannes H. Hattingh, Elna Ungerer, Michael A. Henning

Ars Comb., 1998

On weak domination in graphs.

Johannes H. Hattingh, Renu C. Laskar

Ars Comb., 1998

Distance irredundance in graphs: complexity issues.

Johannes H. Hattingh, Michael A. Henning, Jacobus L. Walters

Ars Comb., 1998

Minus k-subdomination in graphs.

Izak Broere, Jean E. Dunbar, Johannes H. Hattingh

Ars Comb., 1998

Minus k-subdomination in graphs III.

Johannes H. Hattingh, Alice A. McRae, Elna Ungerer

Australas. J Comb., 1998

1997

Minus k-subdomination in graphs II.

Johannes H. Hattingh, Elna Ungerer

Discret. Math., 1997

On weakly connected domination in graphs.

Jean E. Dunbar, Jerrold W. Grossman, Johannes H. Hattingh, Stephen T. Hedetniemi, Alice A. McRae

Discret. Math., 1997

Using maximality and minimality conditions to construct inequality chains.

Ernest J. Cockayne, Johannes H. Hattingh, Sandra Mitchell Hedetniemi, Stephen T. Hedetniemi, Alice A. McRae

Discret. Math., 1997

1995

Majority domination in graphs.

Izak Broere, Johannes H. Hattingh, Michael A. Henning, Alice A. McRae

Discret. Math., 1995

The algorithmic complexity of signed domination in graphs.

Johannes H. Hattingh, Michael A. Henning, Peter J. Slater

Australas. J Comb., 1995

1994

Three-valued k-neighborhood domination in graphs.

Johannes H. Hattingh, Michael A. Henning, Peter J. Slater

Australas. J Comb., 1994

1993

Asymptotic bounds for irredundant and mixed Ramsey numbers.

Guantao Chen, Johannes H. Hattingh, Cecil C. Rousseau

J. Graph Theory, 1993

Structure graphs and structure graph grammars.

Andries Barnard, E. M. Ehlers, Johannes H. Hattingh

Inf. Sci., 1993

On the computational complexity of upper distance fractional domination.

Johannes H. Hattingh, Michael A. Henning, Jakobus L. Walters

Australas. J Comb., 1993

1990

On irredundant Ramsey numbers for graphs.

Johannes H. Hattingh

J. Graph Theory, 1990