Abstract
A (1,λ)-embedded graph is a graph that can be embedded on a surface with Euler characteristic λ so that each edge is crossed by at most one other edge. A graph G is called α-linear if there exists an integral constant β such that e(G') \leq α v(G')+β for each G'\subseteq G. In this paper, it is shown that every (1,λ)-embedded graph G is 4-linear for all possible λ, and is acyclicly edge-(3Δ(G)+70)-choosable for λ=1,2.
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