2021
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1. |
Brualdi, R.A.; Dahl, Geir. Sign-restricted matrices of 0's, 1's, and -1's. Linear Algebra and its Applications 2021 UiO
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2020
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2. |
Brualdi, R.A.; Dahl, Geir. Alternating Sign Matrices: Extensions, König-properties, and Primary Sum-Sequences. Graphs and Combinatorics 2020 ;Volume 36. p. 63-92 UiO
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3. |
Brualdi, R.A.; Dahl, Geir. Permutation matrices, their discrete derivatives and extremal properties. Vietnam Journal of Mathematics 2020 ;Volume 48. p. 719-740 UiO
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4. |
Ciardo, Lorenzo; Dahl, Geir; Kirkland, Steve. On Kemeny's constant for trees with fixed order and diameter. Linear and multilinear algebra 2020 UiO
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2019
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5. |
Andrade, Enide; Ciardo, Lorenzo; Dahl, Geir. Combinatorial Perron Parameters for Trees. Linear Algebra and its Applications 2019 ;Volume 566. p. 138-166 UiO
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6. |
Andrade, Enide; Dahl, Geir; Leal, Laura; Robbiano, Maria. New bounds for the signless Laplacian spread. IMAME 2019, International no Meeting on Applied Mathematics & Evolution; 2019-04-16 - 2019-04-18 UiO
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7. |
Andrade, Enide; Dahl, Geir; Leal, Laura; Robbiano, Maria. New bounds for the signless Laplacian spread. Linear Algebra and its Applications 2019 ;Volume 566. p. 98-120 UiO
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8. |
Brualdi, R.A.; Dahl, Geir. Matrix covering and A-interval matrices. IMAME 2019, International no Meeting on Applied Mathematics & Evolution; 2019-04-16 - 2019-04-18 UiO
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9. |
Dahl, Geir. Majorization - some recent developments in matrix theory. Mathematics seminar; 2019-10-28 - 2019-10-28 UiO
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10. |
Dahl, Geir; Brualdi, R.A.; Guterman, Alexander; Shteyner, Pavel. Matrix covering problems. International linear algebra society ILAS 2019; 2019-07-08 - 2019-07-12 UiO
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11. |
Dahl, Geir; Guterman, Alexander; Shteyner, Pavel. Majorization for (0,1)-matrices. Linear Algebra and its Applications 2019 ;Volume 585. p. 147-163 UiO
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2018
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12. |
Brualdi, R.A.; Dahl, Geir. Alternating Sign Matrices and Hypermatrices, and a Generalization of Latin Squares. Advances in Applied Mathematics 2018 ;Volume 95. p. 116-151 UiO
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13. |
Brualdi, R.A.; Dahl, Geir. Alternating sign matrices, related (0,1)-matrices, and the Smith normal form. Linear Algebra and its Applications 2018 p. 1-19 UiO
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14. |
Brualdi, R.A.; Dahl, Geir. The interval structure of (0,1)-matrices. Discrete Applied Mathematics 2018 UiO
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15. |
Dahl, Geir; Andrade, Enide; Ciardo, Lorenzo. Combinatorial Perron Parameters and Trees. The XXVII Congreso de Matemática Capricornio, COMCA 2018; 2018-07-25 - 2018-07-27 UiO
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16. |
Dahl, Geir; Brualdi, R.A.. Alternating Sign Matrices, Polyhedra and Majorization. The XXVII Congreso de Matemática Capricornio, COMCA 2018; 2018-07-25 - 2018-07-27 UiO
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17. |
Dahl, Geir; Guterman, Alexander; Shteyner, Pavel. Majorization for matrix classes. Linear Algebra and its Applications 2018 ;Volume 555. p. 201-221 UiO
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2017
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18. |
Agra, Agostinho; Dahl, Geir; Haufmann, Torkel Andreas; Pinheiro, Sofia. The k-regular induced subgraph problem. Discrete Applied Mathematics 2017 ;Volume 222. p. 14-30 UiO
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19. |
Brualdi, R.A.; Dahl, Geir. Alternating sign matrices and polyhedra. Seminar talk; 2017-03-20 - 2017-03-20 UiO
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20. |
Brualdi, R.A.; Dahl, Geir. Alternating sign matrices and related polyhedra. ASGARD 2017; 2017-04-26 - 2017-04-27 UiO
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21. |
Brualdi, R.A.; Dahl, Geir. Alternating sign matrices, extensions and related cones. Advances in Applied Mathematics 2017 ;Volume 86. p. 19-49 UiO
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22. |
Dahl, Geir. Laplacian energy, threshold graphs and majorization. International linear algebra society ILAS 2017; 2017-07-24 - 2017-07-28 UiO
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23. |
Dahl, Geir; Ranestad, Kristian; Hole, Arne. Programmering rammer dybdelæring i matematikk. Aftenposten (morgenutg. : trykt utg.) 2017 p. 22-23 UiO
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2016
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24. |
Andrade, Enide; Dahl, Geir. Combinatorial Perron values. ILAS Int. Linear Algebra Society 2016; 2016-07-11 - 2016-07-15 UiO
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25. |
Andrade, Enide; Dahl, Geir. Combinatorial Perron values. Seminar Department of Mathematics, University of Aveiro; 2016-10-12 - 2016-10-12 UiO
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26. |
Andrade, Enide; Dahl, Geir. Combinatorial Perron values of trees and bottleneck matrices. Linear and multilinear algebra 2016 ;Volume 65.(12) p. 2387-2405 UiO
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27. |
Barragan, Luis A.; Dahl, Geir; Dominguez, Alberto; Otin, Arantxa. Zero sum sign-central matrices and applications. Linear Algebra and its Applications 2016 ;Volume 505. p. 109-125 UiO
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28. |
Brualdi, Richard A.; Dahl, Geir; Fritscher, Eliseu. Doubly Stochastic Matrices and the Bruhat Order. Czechoslovak Mathematical Journal 2016 ;Volume 66.(3) p. 681-700 UiO
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29. |
Dahl, Geir. Some Topics in Combinatorial Matrix Theory. International conference on Tensor, Matrix and their applications; 2016-05-21 - 2016-05-24 UiO
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30. |
Dahl, Geir; Brualdi, R.A.. Doubly stochastic matrices and the Bruhat order. ILAS Int. Linear Algebra Society 2016; 2016-07-11 - 2016-07-15 UiO
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31. |
Dahl, Geir; Haufmann, Torkel Andreas. Zero-one completely positive matrices and the A(R, S) classes. Special Matrices 2016 ;Volume 4.(1) p. 296-304 UiO
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32. |
Dahl, Geir; Haufmann, Torkel Andreas. Zero-one completely positive matrices and the A(R,S )matrix classes. ILAS Int. Linear Algebra Society 2016; 2016-07-11 - 2016-07-15 UiO
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33. |
Haufmann, Torkel Andreas; Agra, Agostinho; Dahl, Geir; Pinheiro, Sofia. The k-regular induced subgraph problem. 4th International Symposium on Combinatorial Optimization (ISCO2016); 2016-05-16 - 2016-05-18 UiO
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2015
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34. |
Agra, Agostinho; Dahl, Geir; Haufmann, Torkel Andreas; Pinheiro, Sofia. Maximal induced k-regular subgraphs. 22nd International Symposium on Mathematical Programming; 2015-07-12 - 2015-07-17 UiO
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35. |
Agra, Agostinho; Dahl, Geir; Haufmann, Torkel Andreas; Pinheiro, Sofia. The k-regular induced subgraph problem for k=1,2. MatTriad 2015 (Matrix theory); 2015-09-07 - 2015-09-11 UiO
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36. |
Brualdi, Richard A.; Dahl, Geir. Strict Sign-Central Matrices. SIAM Journal on Matrix Analysis and Applications 2015 ;Volume 36.(3) p. 1202-1220 UiO
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37. |
Dahl, Geir. Combinatorial Matrix Theory and Majorization. 2015 SIAM Conference on Applied Linear Algebra; 2015-10-26 - 2015-10-30 UiO
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38. |
Dahl, Geir. L-rays of permutation matrices and doubly stochastic matrices. Linear Algebra and its Applications 2015 ;Volume 480. p. 127-143 UiO
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39. |
Dahl, Geir. Majorization, (0,1)-matrices and Laplacian energy.. Seminar Department of Mathematics, University of Aveiro; 2015-05-27 UiO
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40. |
Dahl, Geir. Permutation matrices, doubly stochastic matrices and their L– rays. MatTriad 2015 (Matrix theory); 2015-09-07 - 2015-09-11 UiO
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2014
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41. |
Abreu, Nair; Costa, Liliana; Dahl, Geir; Martins, Enide. The skeleton of acyclic Birkhoff polytopes. Linear Algebra and its Applications 2014 ;Volume 457. p. 29-48 UiO
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42. |
Charina, Maria; Dahl, Geir. Subdivision schemes, network flows and linear optimization. Advances in Computational Mathematics 2014 ;Volume 41. p. 507-528 UiO
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43. |
Dahl, Geir. Majorization and combinatorial matrix theory. ALAMA-GAMM/ANLA-meeting matrix analysis 2014; 2014-07-14 - 2014-07-16 UiO
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44. |
Dahl, Geir. The Laplacian energy of threshold graphs and majorization. Linear Algebra and its Applications 2014 ;Volume 469. p. 518-530 UiO
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45. |
Dahl, Geir. Traveling Salesman Problem: En matematisk rundtur. Faglig-pedagogisk dag; 2014-10-30 UiO
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46. |
Dahl, Geir; Brualdi, R.A.. Majorization for partially ordered sets. ILAS (International Linear Algebra Society) 2014; 2014-08-06 - 2014-08-09 UiO
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47. |
Haufmann, Torkel Andreas; Dahl, Geir. Optimization and classes of completely positive matrices. International Symposium on Combinatorial Optimization (ISCO2014); 2014-03-05 - 2014-03-07 UiO
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2013
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48. |
Brualdi, Richard A.; Dahl, Geir. An extension of the polytope of doubly stochastic matrices. Linear and multilinear algebra 2013 ;Volume 61.(3) p. 393-408 UiO
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49. |
Brualdi, Richard A.; Dahl, Geir. Majorization for partially ordered sets. Discrete Mathematics 2013 ;Volume 313.(22) p. 2592-2601 UiO
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50. |
Dahl, Geir. A note on majorization transforms and Ryser’s algorithm. Special Matrices 2013 ;Volume 1. p. 17-24 UiO
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