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2024
1 Andrade, Enide; Dahl, Geir.
Combinatorial Fiedler theory and graph partition. Linear Algebra and its Applications 2024 ;Volum 687. s. 229-251
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2 Brualdi, R.A.; Dahl, Geir.
Frobenius-König theorem for classes of (0, ±1)-matrices. Discrete Mathematics 2024
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3 Brualdi, R.A.; Dahl, Geir.
Multipermutations and Stirling Multipermutations. Graphs and Combinatorics 2024
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4 Brualdi, R.A.; Dahl, Geir.
Stirling Permutations for Partially Ordered Sets. The Bulletin of the Institute of Combinatorics and its Applications (BICA) 2024
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2023
5 Andrade, Enide; Dahl, Geir.
New results on graph partition and Fiedler theory. Conference of the International Linear Algebra Society (ILAS 2023); 2023-06-12 - 2023-06-16
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6 Brualdi, R.A.; Dahl, Geir.
Permutation graphs and the weak Bruhat order. The Art of Discrete and Applied Mathematics 2023 ;Volum 6.(3)
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7 Brualdi, Richard A.; Dahl, Geir.
Multi-alternating sign matrices. The Electronic Journal of Linear Algebra 2023 ;Volum 39. s. 261-282
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8 Dahl, Geir; Brualdi, R.A..
Alternating Sign Matrices and Generalizations. Conference of the International Linear Algebra Society (ILAS 2023); 2023-06-12 - 2023-06-16
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9 Dahl, Geir; Guterman, Alexander; Shteyner, Pavel.
Majorization for (0,±1)-matrices. Linear Algebra and its Applications 2023 ;Volum 663. s. 200-221
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10 Dahl, Geir; Guterman, Alexander; Shteyner, Pavel.
Majorization orders for (0,+1, -1)-matrices. 10th International Congress on Industrial and Applied Mathematics; 2023-08-20 - 2023-08-25
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11 Guterman, Alexander; Dahl, Geir; Shteyner, Pavel.
On combinatorial matrix majorizations. Conference of the International Linear Algebra Society (ILAS 2023); 2023-06-12 - 2023-06-16
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2022
12 Andrade, Enide; Ciardo, Lorenzo; Dahl, Geir.
Perron values and classes of trees. Linear Algebra and its Applications 2022 ;Volum 639. s. 135-158
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13 Dahl, Geir; Brualdi, R.A..
Combinatorial matrix cones. international conference on matrix theory and applications; 2022-12-01 - 2022-12-04
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14 Dahl, Geir; Brualdi, R.A..
The permutation and alternating sign matrix cones. Department seminar, Dept of mathematics, Univ. of Aveiro; 2022-10-26 - 2022-10-26
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2021
15 Brualdi, R.A.; Dahl, Geir.
Alternating Sign and Sign-Restricted Matrices: Representations and Partial Orders. The Electronic Journal of Linear Algebra 2021 ;Volum 37.
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16 Brualdi, R.A.; Dahl, Geir.
Convex (0,1)-Matrices and Their Epitopes,. Discrete Applied Mathematics 2021 ;Volum 297. s. 21-34
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17 Brualdi, R.A.; Dahl, Geir.
Diagonal Sums of Doubly Stochastic Matrices. Linear and multilinear algebra 2021
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18 Brualdi, R.A.; Dahl, Geir.
Diagonal sums of doubly stochastic matrices. III Encuentro Matem\'atico del Caribe; 2021-09-11 - 2021-09-13
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19 Brualdi, Richard A.; Dahl, Geir.
Sign-restricted matrices of 0's, 1's, and −1's. Linear Algebra and its Applications 2021 ;Volum 615. s. 77-103
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20 Dahl, Geir.
Doubly stochastic matrices: old and new results. Seminar, Department of Mathematics; 2021-10-20 - 2021-10-20
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21 Dahl, Geir.
Kombinatorikk, geometri og Munch!. Faglig-pedagogisk dag; 2021-11-04 - 2021-11-04
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22 Dahl, Geir; Munthe-Kaas, Antonella Zanna; Rønquist, Einar; Rypdal, Martin Wibe; Erfjord, Ingvald; Strømskag, Heidi; Helgesen, Rita; Handal, Steffen; Randeberg, Lise Lyngsnes; Raustøl, Håkon.
Eksamen i matematikk er på ville veier. Aftenposten (morgenutg. : trykt utg.) 2021
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2020
23 Brualdi, R.A.; Dahl, Geir.
Alternating Sign Matrices: Extensions, König-properties, and Primary Sum-Sequences. Graphs and Combinatorics 2020 ;Volum 36. s. 63-92
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24 Brualdi, R.A.; Dahl, Geir.
Permutation matrices, their discrete derivatives and extremal properties. Vietnam Journal of Mathematics 2020 ;Volum 48. s. 719-740
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25 Ciardo, Lorenzo; Dahl, Geir; Kirkland, Steve.
On Kemeny's constant for trees with fixed order and diameter. Linear and multilinear algebra 2020
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2019
26 Andrade, Enide; Ciardo, Lorenzo; Dahl, Geir.
Combinatorial Perron Parameters for Trees. Linear Algebra and its Applications 2019 ;Volum 566. s. 138-166
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27 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
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28 Andrade, Enide; Dahl, Geir; Leal, Laura; Robbiano, Maria.
New bounds for the signless Laplacian spread. Linear Algebra and its Applications 2019 ;Volum 566. s. 98-120
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29 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
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30 Dahl, Geir.
Majorization - some recent developments in matrix theory. Mathematics seminar; 2019-10-28 - 2019-10-28
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31 Dahl, Geir; Brualdi, R.A.; Guterman, Alexander; Shteyner, Pavel.
Matrix covering problems. International linear algebra society ILAS 2019; 2019-07-08 - 2019-07-12
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32 Dahl, Geir; Guterman, Alexander; Shteyner, Pavel.
Majorization for (0,1)-matrices. Linear Algebra and its Applications 2019 ;Volum 585. s. 147-163
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2018
33 Brualdi, R.A.; Dahl, Geir.
Alternating Sign Matrices and Hypermatrices, and a Generalization of Latin Squares. Advances in Applied Mathematics 2018 ;Volum 95. s. 116-151
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34 Brualdi, R.A.; Dahl, Geir.
Alternating sign matrices, related (0,1)-matrices, and the Smith normal form. Linear Algebra and its Applications 2018 s. 1-19
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35 Brualdi, R.A.; Dahl, Geir.
The interval structure of (0,1)-matrices. Discrete Applied Mathematics 2018
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36 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
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37 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
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38 Dahl, Geir; Guterman, Alexander; Shteyner, Pavel.
Majorization for matrix classes. Linear Algebra and its Applications 2018 ;Volum 555. s. 201-221
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2017
39 Agra, Agostinho; Dahl, Geir; Haufmann, Torkel Andreas; Pinheiro, Sofia.
The k-regular induced subgraph problem. Discrete Applied Mathematics 2017 ;Volum 222. s. 14-30
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40 Brualdi, R.A.; Dahl, Geir.
Alternating sign matrices and polyhedra. Seminar talk; 2017-03-20 - 2017-03-20
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41 Brualdi, R.A.; Dahl, Geir.
Alternating sign matrices and related polyhedra. ASGARD 2017; 2017-04-26 - 2017-04-27
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42 Brualdi, R.A.; Dahl, Geir.
Alternating sign matrices, extensions and related cones. Advances in Applied Mathematics 2017 ;Volum 86. s. 19-49
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43 Dahl, Geir.
Laplacian energy, threshold graphs and majorization. International linear algebra society ILAS 2017; 2017-07-24 - 2017-07-28
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44 Dahl, Geir; Ranestad, Kristian; Hole, Arne.
Programmering rammer dybdelæring i matematikk. Aftenposten (morgenutg. : trykt utg.) 2017 s. 22-23
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2016
45 Andrade, Enide; Dahl, Geir.
Combinatorial Perron values. ILAS Int. Linear Algebra Society 2016; 2016-07-11 - 2016-07-15
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46 Andrade, Enide; Dahl, Geir.
Combinatorial Perron values. Seminar Department of Mathematics, University of Aveiro; 2016-10-12 - 2016-10-12
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47 Andrade, Enide; Dahl, Geir.
Combinatorial Perron values of trees and bottleneck matrices. Linear and multilinear algebra 2016 ;Volum 65.(12) s. 2387-2405
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48 Barragan, Luis A.; Dahl, Geir; Dominguez, Alberto; Otin, Arantxa.
Zero sum sign-central matrices and applications. Linear Algebra and its Applications 2016 ;Volum 505. s. 109-125
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49 Brualdi, Richard A.; Dahl, Geir; Fritscher, Eliseu.
Doubly Stochastic Matrices and the Bruhat Order. Czechoslovak Mathematical Journal 2016 ;Volum 66.(3) s. 681-700
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50 Dahl, Geir.
Some Topics in Combinatorial Matrix Theory. International conference on Tensor, Matrix and their applications; 2016-05-21 - 2016-05-24
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