A natural question for matroids follows: Which matroids N guarantee that, when present as minors in a larger matroid M, their duals are present as minors? The main results of this paper focus on this question with the additional constraint that N and M are 3-connected. We also solve the problem with other connectivity and representability constraints. (C) 2015 Elsevier Inc. All rights reserved.
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Ist Ric Farmacol Mario Negri, I-20156 Milan, ItalyIst Ric Farmacol Mario Negri, I-20156 Milan, Italy
Gallus, Silvano
Tramacere, Irene
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Ist Ric Farmacol Mario Negri, I-20156 Milan, ItalyIst Ric Farmacol Mario Negri, I-20156 Milan, Italy
Tramacere, Irene
Zuccaro, Piergiorgio
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Ist Super Sanita, Dipartimento Farmaco, I-00161 Rome, ItalyIst Ric Farmacol Mario Negri, I-20156 Milan, Italy
Zuccaro, Piergiorgio
Colombo, Paolo
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Gallup Int Assoc, Ist DOXA, Milan, ItalyIst Ric Farmacol Mario Negri, I-20156 Milan, Italy
Colombo, Paolo
La Vecchia, Carlo
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机构:
Ist Ric Farmacol Mario Negri, I-20156 Milan, Italy
Univ Milan, Ist Stat Med & Biometria GA Maccacaro, Milan, ItalyIst Ric Farmacol Mario Negri, I-20156 Milan, Italy
机构:
Ist Ric Farmacol Mario Negri, I-20156 Milan, ItalyIst Ric Farmacol Mario Negri, I-20156 Milan, Italy
Gallus, Silvano
Tramacere, Irene
论文数: 0引用数: 0
h-index: 0
机构:
Ist Ric Farmacol Mario Negri, I-20156 Milan, ItalyIst Ric Farmacol Mario Negri, I-20156 Milan, Italy
Tramacere, Irene
Zuccaro, Piergiorgio
论文数: 0引用数: 0
h-index: 0
机构:
Ist Super Sanita, Dipartimento Farmaco, I-00161 Rome, ItalyIst Ric Farmacol Mario Negri, I-20156 Milan, Italy
Zuccaro, Piergiorgio
Colombo, Paolo
论文数: 0引用数: 0
h-index: 0
机构:
Gallup Int Assoc, Ist DOXA, Milan, ItalyIst Ric Farmacol Mario Negri, I-20156 Milan, Italy
Colombo, Paolo
La Vecchia, Carlo
论文数: 0引用数: 0
h-index: 0
机构:
Ist Ric Farmacol Mario Negri, I-20156 Milan, Italy
Univ Milan, Ist Stat Med & Biometria GA Maccacaro, Milan, ItalyIst Ric Farmacol Mario Negri, I-20156 Milan, Italy