Works matching AU VOLKMANN, LUTZ

Results: 90

k-Domination and k-Independence in Graphs: A Survey.

Published in:

Graphs & Combinatorics, 2012, v. 28, n. 1, p. 1, doi. 10.1007/s00373-011-1040-3

By:

Chellali, Mustapha;
Favaron, Odile;
Hansberg, Adriana;
Volkmann, Lutz

Publication type:

Article

On the Roman Bondage Number of Planar Graphs.

Published in:

Graphs & Combinatorics, 2011, v. 27, n. 4, p. 531, doi. 10.1007/s00373-010-0978-x

By:

Jafari Rad, Nader;
Volkmann, Lutz

Publication type:

Article

Structural Remarks on Bipartite Graphs with Unique f-Factors.

Published in:

Graphs & Combinatorics, 2005, v. 21, n. 4, p. 421, doi. 10.1007/s00373-005-0631-2

By:

Hoffmann, Arne;
Volkmann, Lutz

Publication type:

Article

Extendable Cycles in Multipartite Tournaments.

Published in:

Graphs & Combinatorics, 2004, v. 20, n. 2, p. 185, doi. 10.1007/s00373-003-0548-6

By:

Guo, Yubao;
Volkmann, Lutz

Publication type:

Article

Weak Signed Roman Domination in Digraphs.

Published in:

Tamkang Journal of Mathematics, 2021, v. 52, n. 4, p. 497, doi. 10.5556/j.tkjm.52.2021.3523

By:

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

Untersuchungen ganzer und meromorpher Funktionen unendlicher Ordnung.

Published in:

Archiv der Mathematik, 1982, v. 39, n. 1, p. 32, doi. 10.1007/BF01899242

By:

Jank, Gerhard;
Volkmann, Lutz

Publication type:

Article

Zusammenhänge zwischen dem Maximalbetrag und einer Nullstellenfunktion bei ganzen Funktionen.

Published in:

Archiv der Mathematik, 1978, v. 30, n. 1, p. 286, doi. 10.1007/BF01226057

By:

Volkmann, Lutz

Publication type:

Article

Quasi total double Roman domination in trees.

Published in:

Communications in Combinatorics & Optimization, 2024, v. 9, n. 1, p. 159, doi. 10.22049/cco.2023.28186.1469

By:

Akhoundi, Maryam;
Khan, Aysha;
Shafi, Jana;
Volkmann, Lutz

Publication type:

Article

Independent Italian bondage of graphs.

Published in:

Communications in Combinatorics & Optimization, 2023, v. 8, n. 4, p. 649, doi. 10.22049/CCO.2023.28662.1657

By:

Kosari, Saeed;
Amjadi, Jafar;
Khan, Aysha;
Volkmann, Lutz

Publication type:

Article

Total restrained Roman domination.

Published in:

Communications in Combinatorics & Optimization, 2023, v. 8, n. 3, p. 575, doi. 10.22049/CCO.2022.27628.1303

By:

Amjadi, Jafar;
Samadi, Babak;
Volkmann, Lutz

Publication type:

Article

Signed total Italian domination in digraphs.

Published in:

Communications in Combinatorics & Optimization, 2023, v. 8, n. 3, p. 457, doi. 10.22049/CCO.2022.27700.1318

By:

Volkmann, Lutz

Publication type:

Article

Remarks on the restrained Italian domination number in graphs.

Published in:

Communications in Combinatorics & Optimization, 2023, v. 8, n. 1, p. 183, doi. 10.22049/CCO.2021.27471.1269

By:

Volkmann, Lutz

Publication type:

Article

Signed total Italian κ-domatic number of a graph.

Published in:

Communications in Combinatorics & Optimization, 2023, v. 8, n. 1, p. 39, doi. 10.22049/CCO.2021.27165.1207

By:

Volkmann, Lutz

Publication type:

Article

Restrained double Italian domination in graphs.

Published in:

Communications in Combinatorics & Optimization, 2023, v. 8, n. 1, p. 1, doi. 10.22049/CCO.2021.27334.1236

By:

Volkmann, Lutz

Publication type:

Article

Weak signed Roman k-domatic number of a graph.

Published in:

Communications in Combinatorics & Optimization, 2022, v. 7, n. 1, p. 17, doi. 10.22049/cc0.2021.26998.1178

By:

Volkmann, Lutz

Publication type:

Article

On connectivity in graphs with given clique number.

Published in:

Journal of Graph Theory, 2006, v. 52, n. 1, p. 7

By:

Angelika Hellwig;
Lutz Volkmann

Publication type:

Article

Proof of a conjecture on irredundance perfect graphs.

Published in:

Journal of Graph Theory, 2002, v. 41, n. 4, p. 292, doi. 10.1002/jgt.10068

By:

Volkmann, Lutz;
Zverovich, Vadim E.

Publication type:

Article

How local irregularity gets global in a graph.

Published in:

Journal of Graph Theory, 2002, v. 41, n. 1, p. 18, doi. 10.1002/jgt.10043

By:

Rautenbach, Dieter;
Volkmann, Lutz

Publication type:

Article

Vertex pancyclic in-tournaments.

Published in:

Journal of Graph Theory, 2001, v. 36, n. 2, p. 84, doi. 10.1002/1097-0118(200102)36:2<84::AID-JGT4>3.0.CO;2-D

By:

Tewes, Meike;
Volkmann, Lutz

Publication type:

Article

Degree sequence conditions for maximally edge-connected graphs and digraphs.

Published in:

Journal of Graph Theory, 1997, v. 26, n. 1, p. 27, doi. 10.1002/(SICI)1097-0118(199709)26:1<27::AID-JGT4>3.0.CO;2-J

By:

Dankelmann, Peter;
Volkmann, Lutz

Publication type:

Article

Locally semicomplete digraphs that are complementary m-pancyclic.

Published in:

Journal of Graph Theory, 1996, v. 21, n. 2, p. 121, doi. 10.1002/(SICI)1097-0118(199602)21:2<121::AID-JGT2>3.0.CO;2-T

By:

Guo, Yubao;
Volkmann, Lutz

Publication type:

Article

Weakly Hamiltonian-connected locally semicomplete digraphs.

Published in:

Journal of Graph Theory, 1996, v. 21, n. 2, p. 163, doi. 10.1002/(SICI)1097-0118(199602)21:2<163::AID-JGT5>3.0.CO;2-P

By:

Bang-Jensen, Jørgen;
Guo, Yubao;
Volkmann, Lutz

Publication type:

Article

Connectivity properties of locally semicomplete digraphs.

Published in:

Journal of Graph Theory, 1994, v. 18, n. 3, p. 269, doi. 10.1002/jgt.3190180306

By:

Guo, Yubao;
Volkmann, Lutz

Publication type:

Article

Sufficient conditions for equality of connectivity and minimum degree of a graph.

Published in:

Journal of Graph Theory, 1993, v. 17, n. 6, p. 695, doi. 10.1002/jgt.3190170606

By:

Topp, Jerzy;
Volkmann, Lutz

Publication type:

Article

A new domination conception.

Published in:

Journal of Graph Theory, 1993, v. 17, n. 3, p. 315, doi. 10.1002/jgt.3190170306

By:

Stracke, Christoph;
Volkmann, Lutz

Publication type:

Article

Class 1 conditions depending on the minimum degree and the number of vertices of maximum degree.

Published in:

Journal of Graph Theory, 1990, v. 14, n. 2, p. 225, doi. 10.1002/jgt.3190140211

By:

Niessen, Thomas;
Volkmann, Lutz

Publication type:

Article

Edge-connectivity in p-partite graphs.

Published in:

Journal of Graph Theory, 1989, v. 13, n. 1, p. 1, doi. 10.1002/jgt.3190130103

By:

Volkmann, Lutz

Publication type:

Article

MAXIMALLY AND SUPER CONNECTED MULTISPLIT GRAPHS AND DIGRAPHS.

Published in:

Applicable Analysis & Discrete Mathematics, 2019, v. 13, n. 1, p. 224, doi. 10.2298/AADM170716024G

By:

Litao Guo;
Guifu Su;
Volkmann, Lutz;
Xingke Zhao

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

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

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

A remark on degree sequences of multigraphs.

Published in:

Mathematical Methods of Operations Research, 2009, v. 69, n. 2, p. 369, doi. 10.1007/s00186-008-0265-2

By:

Meierling, Dirk;
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

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

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