Total colorings of planar graphs without adjacent triangles

Let G be a planar graph without adjacent 3-cycles, that is, two cycles of length 3 are not incident with a common edge. In this paper, it is proved that the total coloring conjecture is true for G; moreover, if @D(G)>=9, then the total chromatic number @g^''(G) of G is @D(G)+1. Some other related results are obtained, too.