Geodesic
Automorphisms of $P_8$ Singularities and the Complex Crystallographic Groups
Trudy Matematicheskogo Instituta imeni V.A. Steklova, Singularities and applications, Tome 267 (2009), pp. 97-109

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The paper completes the study of symmetries of parabolic function singularities with relation to complex crystallographic groups that was started by the first co-author and his collaborator. We classify smoothable automorphisms of $P_8$ singularities which split the kernel of the intersection form on the second homology. For such automorphisms, the monodromy groups acting on the duals to the eigenspaces with degenerate intersection form are then identified as some of complex affine reflection groups tabled by V. L. Popov. 
@article{TM_2009_267_a6,
     author = {V. Goryunov and D. Kerner},
     title = {Automorphisms of $P_8$ {Singularities} and the {Complex} {Crystallographic} {Groups}},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {97--109},
     publisher = {mathdoc},
     volume = {267},
     year = {2009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TM_2009_267_a6/}
}
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V. Goryunov; D. Kerner. Automorphisms of $P_8$ Singularities and the Complex Crystallographic Groups. Trudy Matematicheskogo Instituta imeni V.A. Steklova, Singularities and applications, Tome 267 (2009), pp. 97-109. http://geodesic.mathdoc.fr/item/TM_2009_267_a6/