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If a graph embeds in the torus or the projective plane if there is there an upper bound on the number of edge crossings it has in the plane.?

If a graph embeds in the torus or the projective plane if there is an upper bound on the number of edge crossings it has in the plane.

If a graph embeds in the torus or the projective plane is there an upper bound on the number of edge crossings it has in the plane?

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If a graph embeds in the projective plane or the torus is there a bound on the number of edge crossings it has in the plane?

I would like to know ifIf a graph embeds in the torus or the projective plane if there is an upper bound on the number of edge crossings it has in the plane.

If a graph embeds in the projective plane or the torus

I would like to know if a graph embeds in the torus or the projective plane if there is an upper bound on the number of edge crossings it has.

If a graph embeds in the projective plane or the torus is there a bound on the number of edge crossings it has in the plane?

If a graph embeds in the torus or the projective plane if there is an upper bound on the number of edge crossings it has in the plane.

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If a graph embeds in the projective plane or the torus

I would like to know if a graph embeds in the torus or the projective plane if there is an upper bound on the number of edge crossings it has.