Towards a splitter theorem for internally 4-connected binary matroids II
نویسندگان
چکیده
Let M and N be internally 4-connected binary matroids such that M has a proper N -minor, and |E(N)| ≥ 7. As part of our project to develop a splitter theorem for internally 4-connected binary matroids, we prove the following result: if M\e has no N -minor whenever e is in a triangle of M , and M/e has no N -minor whenever e is in a triad of M , then M has a minor, M ′, such that M ′ is internally 4-connected with an N -minor, and 1 ≤ |E(M)| − |E(M ′)| ≤ 2.
منابع مشابه
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ورودعنوان ژورنال:
- Eur. J. Comb.
دوره 36 شماره
صفحات -
تاریخ انتشار 2014