Geodesic
On a~real caustic of type $E_6$
Izvestiya. Mathematics , Tome 85 (2021) no. 2, pp. 279-305

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We prove that the manifold of non-singular points of a stable real caustic germ of type $E_6$ and the manifolds of points of transversal intersection of its smooth branches consist only of contractible connected components. We also calculate the number of these components.
Keywords: Lagrangian map, caustic, singularities of types $A$, multisingularities, adjacency index.
Mots-clés : $D$, $E$ 
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     author = {V. D. Sedykh},
     title = {On a~real caustic of type $E_6$},
     journal = {Izvestiya. Mathematics },
     pages = {279--305},
     publisher = {mathdoc},
     volume = {85},
     number = {2},
     year = {2021},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2021_85_2_a4/}
}
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V. D. Sedykh. On a~real caustic of type $E_6$. Izvestiya. Mathematics , Tome 85 (2021) no. 2, pp. 279-305. http://geodesic.mathdoc.fr/item/IM2_2021_85_2_a4/