Works matching AU VOLKMANN, LUTZ

Results: 90

Independent Domination Stable Trees and Unicyclic Graphs.

Published in:

Mathematics (2227-7390), 2019, v. 7, n. 9, p. 820, doi. 10.3390/math7090820

By:

Wu, Pu;
Jiang, Huiqin;
Nazari-Moghaddam, Sakineh;
Sheikholeslami, Seyed Mahmoud;
Shao, Zehui;
Volkmann, Lutz

Publication type:

Article

Oriented diameter of maximal outerplanar graphs.

Published in:

Journal of Graph Theory, 2021, v. 98, n. 3, p. 426, doi. 10.1002/jgt.22707

By:

Wang, Xiaolin;
Chen, Yaojun;
Dankelmann, Peter;
Guo, Yubao;
Surmacs, Michel;
Volkmann, Lutz

Publication type:

Article

Sufficient Conditions for Graphs to Be k-Connected, Maximally Connected, and Super-Connected.

Published in:

Complexity, 2021, p. 1, doi. 10.1155/2021/5588146

By:

Hong, Zhen-Mu;
Xia, Zheng-Jiang;
Chen, Fuyuan;
Volkmann, Lutz

Publication type:

Article

Lower bounds on the signed total k-domination number of graphs.

Published in:

Aequationes Mathematicae, 2016, v. 90, n. 2, p. 271, doi. 10.1007/s00010-015-0375-x

By:

Volkmann, Lutz

Publication type:

Article

Total Roman {3}-domination in Graphs.

Published in:

Symmetry (20738994), 2020, v. 12, n. 2, p. 268, doi. 10.3390/sym12020268

By:

Shao, Zehui;
Mojdeh, Doost Ali;
Volkmann, Lutz

Publication type:

Article

Sufficient Conditions for Maximally Edge-connected and Super-edge-connected Digraphs Depending on the Size.

Published in:

Acta Mathematica Sinica, 2019, v. 35, n. 12, p. 1861, doi. 10.1007/s10114-019-8448-8

By:

Milz, Sebastian;
Volkmann, Lutz

Publication type:

Article

Total restrained bondage in graphs.

Published in:

Acta Mathematica Sinica, 2013, v. 29, n. 6, p. 1033, doi. 10.1007/s10114-013-1085-8

By:

Jafari Rad, Nader;
Hasni, Roslan;
Raczek, Joanna;
Volkmann, Lutz

Publication type:

Article

The Roman k-domatic number of a graph.

Published in:

Acta Mathematica Sinica, 2011, v. 27, n. 10, p. 1899, doi. 10.1007/s10114-011-0385-0

By:

Sheikholeslami, Seyed;
Volkmann, Lutz

Publication type:

Article

Smallest close to regular bipartite graphs without an almost perfect matching.

Published in:

Acta Mathematica Sinica, 2010, v. 26, n. 8, p. 1403, doi. 10.1007/s10114-010-9124-1

By:

Volkmann, Lutz;
Zingsem, Axel

Publication type:

Article

DOUBLE ROMAN AND DOUBLE ITALIAN DOMINATION.

Published in:

Discussiones Mathematicae: Graph Theory, 2023, v. 43, n. 3, p. 721, doi. 10.7151/dmgt.2399

By:

VOLKMANN, LUTZ

Publication type:

Article

THE ROMAN DOMATIC PROBLEM IN GRAPHS AND DIGRAPHS: A SURVEY.

Published in:

2022

By:

CHELLALI, MUSTAPHA;
RAD, NADER JAFARI;
SHEIKHOLESLAMI, SEYED MAHMOUD;
VOLKMANN, LUTZ

Publication type:

Literature Review

DOMINATION NUMBER, INDEPENDENT DOMINATION NUMBER AND 2-INDEPENDENCE NUMBER IN TREES.

Published in:

Discussiones Mathematicae: Graph Theory, 2021, v. 41, n. 1, p. 39, doi. 10.7151/dmgt.2165

By:

DEHGARDI, NASRIN;
SHEIKHOLESLAMI, SEYED MAHMOUD;
VALINAVAZ, MINA;
ARAM, HAMIDEH;
VOLKMANN, LUTZ

Publication type:

Article

THE DOUBLE ROMAN DOMATIC NUMBER OF A DIGRAPH.

Published in:

Discussiones Mathematicae: Graph Theory, 2020, v. 40, n. 4, p. 995, doi. 10.7151/dmgt.2161

By:

VOLKMANN, LUTZ

Publication type:

Article

SUFFICIENT CONDITIONS FOR MAXIMALLY EDGE-CONNECTED AND SUPER-EDGE-CONNECTED GRAPHS DEPENDING ON THE CLIQUE NUMBER.

Published in:

Discussiones Mathematicae: Graph Theory, 2019, v. 39, n. 2, p. 567, doi. 10.7151/dmgt.2096

By:

VOLKMANN, LUTZ

Publication type:

Article

ON THE CO-ROMAN DOMINATION IN GRAPHS.

Published in:

Discussiones Mathematicae: Graph Theory, 2019, v. 39, n. 2, p. 455, doi. 10.7151/dmgt.2091

By:

ZEHUI SHAO;
SHEIKHOLESLAMI, SEYED MAHMOUD;
SOROUDI, MARZIEH;
VOLKMANN, LUTZ;
XINMIAO LIU

Publication type:

Article

BOUNDS ON THE SIGNED ROMAN k-DOMINATION NUMBER OF A DIGRAPH.

Published in:

Discussiones Mathematicae: Graph Theory, 2019, v. 39, n. 1, p. 67, doi. 10.7151/dmgt.2068

By:

GUOLIANG HAO;
XIAODAN CHEN;
VOLKMANN, LUTZ

Publication type:

Article

THE SIGNED TOTAL ROMAN k-DOMATIC NUMBER OF A GRAPH.

Published in:

Discussiones Mathematicae: Graph Theory, 2017, v. 37, n. 4, p. 1027, doi. 10.7151/dmgt.1970

By:

VOLKMANN, LUTZ

Publication type:

Article

SIGNED TOTAL ROMAN DOMINATION IN DIGRAPHS.

Published in:

Discussiones Mathematicae: Graph Theory, 2017, v. 37, n. 1, p. 261, doi. 10.7151/dmgt.1929

By:

VOLKMANN, LUTZ

Publication type:

Article

SIGNED ROMAN EDGE k-DOMINATION IN GRAPHS.

Published in:

Discussiones Mathematicae: Graph Theory, 2017, v. 37, n. 1, p. 39, doi. 10.7151/dmgt.1912

By:

ASGHARSHARGHI, LEILA;
SHEIKHOLESLAMI, SEYED MAHMOUD;
VOLKMANN, LUTZ

Publication type:

Article

New Bounds on the Signed Total Domination Number of Graphs.

Published in:

Discussiones Mathematicae: Graph Theory, 2016, v. 36, n. 3, p. 467, doi. 10.7151/dmgt.1871

By:

Moghaddam, Seyyed Mehdi Hosseini;
Mojdeh, Doost Ali;
Samadi, Babak;
Volkmann, Lutz

Publication type:

Article

NEW BOUNDS ON THE SIGNED TOTAL DOMINATION NUMBER OF GRAPHS.

Published in:

Discussiones Mathematicae: Graph Theory, 2016, v. 36, n. 2, p. 467, doi. 10.7151/dmgt.1871

By:

HOSSEINI MOGHADDAM, SEYYED MEHDI;
MOJDEH, DOOST ALI;
SAMADI, BABAK;
VOLKMANN, LUTZ

Publication type:

Article

ON THE SIGNED (TOTAL) k-INDEPENDENCE NUMBER IN GRAPHS.

Published in:

Discussiones Mathematicae: Graph Theory, 2015, v. 35, n. 4, p. 29, doi. 10.7151/dmgt.1824

By:

KHODKAR, ABDOLLAH;
SAMADI, BABAK;
VOLKMANN, LUTZ

Publication type:

Article

UPPER BOUNDS ON THE SIGNED TOTAL (k, k)-DOMATIC NUMBER OF GRAPHS.

Published in:

Discussiones Mathematicae: Graph Theory, 2015, v. 35, n. 4, p. 1, doi. 10.7151/dmgt.1823

By:

Volkmann, Lutz

Publication type:

Article

The k-Rainbow Bondage Number of a Digraph.

Published in:

Discussiones Mathematicae: Graph Theory, 2015, v. 35, n. 2, p. 261, doi. 10.7151/dmgt.1797

By:

Amjadi, Jafar;
Mohammadi, Negar;
Sheikholeslami, Seyed Mahmoud;
Volkmann, Lutz

Publication type:

Article

BOUNDS ON THE SIGNED 2-INDEPENDENCE NUMBER IN GRAPHS.

Published in:

Discussiones Mathematicae: Graph Theory, 2013, v. 33, n. 4, p. 709, doi. 10.7151/dmgt.1686

By:

VOLKMANN, LUTZ

Publication type:

Article

THE DISTANCE ROMAN DOMINATION NUMBERS OF GRAPHS.

Published in:

Discussiones Mathematicae: Graph Theory, 2013, v. 33, n. 4, p. 717, doi. 10.7151/dmgt.1703

By:

ARAM, HAMIDEH;
NOROUZIAN, SEPIDEH;
SHEIKHOLESLAMI, SEYED MAHMOUD;
VOLKMANN, LUTZ

Publication type:

Article

THE k-RAINBOW DOMATIC NUMBER OF A GRAPH.

Published in:

Discussiones Mathematicae: Graph Theory, 2012, v. 32, n. 1, p. 129, doi. 10.7151/dmgt.1591

By:

Sheikholeslami, Seyyed Mahmoud;
Volkmann, Lutz

Publication type:

Article

ROMAN BONDAGE IN GRAPHS.

Published in:

Discussiones Mathematicae: Graph Theory, 2011, v. 31, n. 4, p. 763, doi. 10.7151/dmgt.1578

By:

RAD, NADER JAFARI;
VOLKMANN, LUTZ

Publication type:

Article

CONNECTED GLOBAL OFFENSIVE κ-ALLIANCES IN GRAPHS.

Published in:

Discussiones Mathematicae: Graph Theory, 2011, v. 31, n. 4, p. 699, doi. 10.7151/dmgt.1574

By:

VOLKMANN, LUTZ

Publication type:

Article

CHARACTERIZATION OF TREES WITH EQUAL 2-DOMINATION NUMBER AND DOMINATION NUMBER PLUS TWO.

Published in:

Discussiones Mathematicae: Graph Theory, 2011, v. 31, n. 4, p. 687, doi. 10.7151/dmgt.1573

By:

CHELLALI, MUSTAPHA;
VOLKMANN, LUTZ

Publication type:

Article

SIGNED DOMINATION AND SIGNED DOMATIC NUMBERS OF DIGRAPHS.

Published in:

Discussiones Mathematicae: Graph Theory, 2011, v. 31, n. 3, p. 415, doi. 10.7151/dmgt.1555

By:

Volkmann, Lutz

Publication type:

Article

k-INDEPENDENCE STABLE GRAPHS UPON EDGE REMOVAL.

Published in:

Discussiones Mathematicae: Graph Theory, 2010, v. 30, n. 2, p. 265, doi. 10.7151/dmgt.1492

By:

Chellali, Mustapha;
Haynes, Teresa W.;
Volkmann, Lutz

Publication type:

Article

BOUNDS ON THE GLOBAL OFFENSIVE k-ALLIANCE NUMBER IN GRAPHS.

Published in:

Discussiones Mathematicae: Graph Theory, 2009, v. 29, n. 3, p. 597, doi. 10.7151/dmgt.1467

By:

Chellali, Mustapha;
Haynes, Teresa W.;
Randerath, Bert;
Volkmann, Lutz

Publication type:

Article

A REMARK ON THE (2; 2)-DOMINATION NUMBER.

Published in:

Discussiones Mathematicae: Graph Theory, 2008, v. 28, n. 2, p. 361, doi. 10.7151/dmgt.1411

By:

Korneffel, Torsten;
Meierling, Dirk;
Volkmann, Lutz

Publication type:

Article

Nordhaus–Gaddum type inequalities on the total Italian domination number in graphs.

Published in:

RAIRO: Operations Research (2804-7303), 2022, v. 56, n. 4, p. 2235, doi. 10.1051/ro/2022108

By:

Sheikholeslami, Seyed Mahmoud;
Volkmann, Lutz

Publication type:

Article

Restrained double Roman domination of a graph.

Published in:

RAIRO: Operations Research (2804-7303), 2022, v. 56, n. 4, p. 2293, doi. 10.1051/ro/2022089

By:

Mojdeh, Doost Ali;
Masoumi, Iman;
Volkmann, Lutz

Publication type:

Article

Factors of Locally almost Regular Graphs.

Published in:

Bulletin of the London Mathematical Society, 1991, v. 23, n. 2, p. 121

By:

Joentgen, Arno;
Volkmann, Lutz

Publication type:

Article

Cyclic sums, network sharing, and restricted edge cuts in graphs with long cycles.

Published in:

Networks, 2008, v. 52, n. 4, p. 252, doi. 10.1002/net.20243

By:

Rautenbach, Dieter;
Volkmann, Lutz

Publication type:

Article

GENERALIZATION OF THE TOTAL OUTER-CONNECTED DOMINATION IN GRAPHS.

Published in:

RAIRO -- Operations Research, 2016, v. 50, n. 2, p. 233, doi. 10.1051/ro/2015016

By:

JAFARI RAD, NADER;
VOLKMANN, LUTZ

Publication type:

Article

Outer independent total double Italian domination number.

Published in:

Computer Science Journal of Moldova, 2024, v. 32, n. 1, p. 19, doi. 10.56415/csjm.v32.02

By:

Sheikholeslami, Seyed Mahmoud;
Volkmann, Lutz

Publication type:

Article

Total Italian domatic number of graphs.

Published in:

Computer Science Journal of Moldova, 2023, v. 31, n. 2, p. 169, doi. 10.56415/csjm.v31.09

By:

Sheikholeslami, Seyed Mahmoud;
Volkmann, Lutz

Publication type:

Article

Graphs with Large Italian Domination Number.

Published in:

Bulletin of the Malaysian Mathematical Sciences Society, 2020, v. 43, n. 6, p. 4273, doi. 10.1007/s40840-020-00921-y

By:

Haynes, Teresa W.;
Henning, Michael A.;
Volkmann, Lutz

Publication type:

Article

Extremal Digraphs for an Upper Bound on the Double Roman Domination Number.

Published in:

Bulletin of the Malaysian Mathematical Sciences Society, 2020, v. 43, n. 2, p. 1153, doi. 10.1007/s40840-019-00735-7

By:

Ouldrabah, Lyes;
Blidia, Mostafa;
Bouchou, Ahmed;
Volkmann, Lutz

Publication type:

Article

Double Roman Domination in Digraphs.

Published in:

Bulletin of the Malaysian Mathematical Sciences Society, 2019, v. 42, n. 5, p. 1907, doi. 10.1007/s40840-017-0582-9

By:

Hao, Guoliang;
Chen, Xiaodan;
Volkmann, Lutz

Publication type:

Article

Upper Bounds on the Signed (k, k)-Domatic Number of Digraphs.

Published in:

Bulletin of the Malaysian Mathematical Sciences Society, 2015, v. 38, n. 4, p. 1527, doi. 10.1007/s40840-014-0104-y

By:

Volkmann, Lutz

Publication type:

Article

Über Zusammenhänge zwischen den Nullstellen und dem Zentralindex ganzer Funktionen.

Published in:

Mathematische Annalen, 1975, v. 217, n. 1, p. 87, doi. 10.1007/BF01363244

By:

Volkmann, Lutz

Publication type:

Article

Edge-Removal and Edge-Addition in $$\alpha $$ -Domination.

Published in:

Graphs & Combinatorics, 2016, v. 32, n. 3, p. 1155, doi. 10.1007/s00373-015-1614-6

By:

Rad, Nader;
Volkmann, Lutz

Publication type:

Article

Signed Roman k-domination in Digraphs.

Published in:

Graphs & Combinatorics, 2016, v. 32, n. 3, p. 1217, doi. 10.1007/s00373-015-1641-3

By:

Volkmann, Lutz

Publication type:

Article

Signed Roman $$k$$ -Domination in Graphs.

Published in:

Graphs & Combinatorics, 2016, v. 32, n. 1, p. 175, doi. 10.1007/s00373-015-1536-3

By:

Henning, Michael;
Volkmann, Lutz

Publication type:

Article

Roman Domination Dot-critical Graphs.

Published in:

Graphs & Combinatorics, 2013, v. 29, n. 3, p. 527, doi. 10.1007/s00373-012-1139-1

By:

Jafari Rad, Nader;
Volkmann, Lutz

Publication type:

Article