Add to ORKGThe width of a delta-matroid is the difference in size between a maximal and minimal feasible set. We give a Rough Structure Theorem for delta-matroids that admit a twist of width one. We apply this theorem to give an excluded-minor characterisation of delta-matroids that admit a twist of width at most one
We prove a splitter theorem for tight multimatroids, generalizing the corresponding result for matro...
International audienceEvery minor-closed class of matroids of bounded branch-width can be characteri...
Abstract. For all positive integers k, the class Bk of matroids of branch-width at most k is minor-c...
The width of a delta-matroid is the difference in size between a maximal and minimal\ud feasible set...
We introduce delta-graphic matroids, which are matroids whose bases form graphic delta-matroids. The...
. In [30], Tardos studied special delta-matroids obtained from sequences of\ud Higgs lifts; these ar...
AbstractWe prove that the excluded minors for the class of matroids of branch-width k have size at m...
In [30], Tardos studied special delta-matroids obtained from sequences of\ud Higgs lifts; these are ...
Recently, we introduced the twist polynomials of delta-matroids and gave a characterization of even ...
AbstractSymmetric matroids and their associated structure (delta matroids) are a generalization of f...
Vf-safe delta-matroids have the desirable property of behaving well under\ud certain duality operati...
We investigate delta-matroids which are formed by families of subsets of a finite ground set such th...
Vf-safe delta-matroids have the desirable property of behaving well under\ud certain duality operati...
AbstractThis paper addresses a generalization of the matroid parity problem to delta-matroids. We gi...
Abstract. For all positive integers k, the class Bk of matroids of branch-width at most k is minor-c...
We prove a splitter theorem for tight multimatroids, generalizing the corresponding result for matro...
International audienceEvery minor-closed class of matroids of bounded branch-width can be characteri...
Abstract. For all positive integers k, the class Bk of matroids of branch-width at most k is minor-c...
The width of a delta-matroid is the difference in size between a maximal and minimal\ud feasible set...
We introduce delta-graphic matroids, which are matroids whose bases form graphic delta-matroids. The...
. In [30], Tardos studied special delta-matroids obtained from sequences of\ud Higgs lifts; these ar...
AbstractWe prove that the excluded minors for the class of matroids of branch-width k have size at m...
In [30], Tardos studied special delta-matroids obtained from sequences of\ud Higgs lifts; these are ...
Recently, we introduced the twist polynomials of delta-matroids and gave a characterization of even ...
AbstractSymmetric matroids and their associated structure (delta matroids) are a generalization of f...
Vf-safe delta-matroids have the desirable property of behaving well under\ud certain duality operati...
We investigate delta-matroids which are formed by families of subsets of a finite ground set such th...
Vf-safe delta-matroids have the desirable property of behaving well under\ud certain duality operati...
AbstractThis paper addresses a generalization of the matroid parity problem to delta-matroids. We gi...
Abstract. For all positive integers k, the class Bk of matroids of branch-width at most k is minor-c...
We prove a splitter theorem for tight multimatroids, generalizing the corresponding result for matro...
International audienceEvery minor-closed class of matroids of bounded branch-width can be characteri...
Abstract. For all positive integers k, the class Bk of matroids of branch-width at most k is minor-c...