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Splice type surface singularities and their local tropicalizations

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Authors : Cueto, Maria Angelica (Author of the conference)
CIRM (Publisher )

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Abstract : Splice type surface singularities were introduced by Neumann and Wahl as a generalization of the class of Pham-Brieskorn-Hamm complete intersections of dimension two. Their construction depends on a weighted graph with no loopscalled a splice diagram. In this talk, I will report on joint work with Patrick Popescu-Pampu and Dmitry Stepanov (arXiv: 2108.05912) that sheds new light on these singularities via tropical methods, reproving some of Neumann and Wahl'searlier results on these singularities, and showings that splice type surface singularities are Newton non-degenerate in the sense of Khovanskii.

Keywords : surface singularities; complete intersection singularities; tropical geometry; Newton non-degeneracy

MSC Codes :
14B05 - Singularities
14M25 - Toric varieties, Newton polyhedra
32S05 - Local singularities [See also 14J17]
57M15 - Relations with graph theory, See also {05Cxx}
14T90 - Applications of tropical geometry

    Information on the Video

    Film maker : Hennenfent, Guillaume
    Language : English
    Available date : 10/12/2021
    Conference Date : 25/11/2021
    Subseries : Research talks
    arXiv category : Algebraic Geometry ; Analysis of PDEs
    Mathematical Area(s) : Combinatorics ; Geometry ; Algebraic & Complex Geometry ; Topology
    Format : MP4 (.mp4) - HD
    Video Time : 01:00:06
    Targeted Audience : Researchers
    Download : https://videos.cirm-math.fr/2021-11-25_Angelica.mp4

Information on the Event

Event Title : Jean-Morlet Chair 2021 - Conference: Faces of Singularity Theory / Chaire Jean-Morlet 2021 - Conférence : Visages de la théorie des singularités
Event Organizers : Fernandez de Bobadilla, Javier ; Pichon, Anne ; Mann, Etienne
Dates : 22/11/2021 - 26/11/2021
Event Year : 2021
Event URL : https://www.chairejeanmorlet.com/2571.html

Citation Data

DOI : 10.24350/CIRM.V.19846703
Cite this video as: Cueto, Maria Angelica (2021). Splice type surface singularities and their local tropicalizations. CIRM. Audiovisual resource. doi:10.24350/CIRM.V.19846703
URI : http://dx.doi.org/10.24350/CIRM.V.19846703

See Also

Bibliography

  • CUETO, Maria Angelica, POPESCU-PAMPU, Patrick, et STEPANOV, Dmitry. Local tropicalizations of splice type surface singularities. arXiv preprint arXiv:2108.05912, 2021. - https://arxiv.org/abs/2108.05912

  • NEUMANN, Walter D. et WAHL, Jonathan. Complete intersection singularities of splice type as universal abelian covers. Geometry & Topology, 2005, vol. 9, no 2, p. 699-755. - http://dx.doi.org/10.2140/gt.2005.9.699

  • NEUMANN, Walter D. et WAHL, Jonathan. Complex surface singularities with integral homology sphere links. Geometry & Topology, 2005, vol. 9, no 2, p. 757-811. - http://dx.doi.org/10.2140/gt.2005.9.757

  • POPESCU-PAMPU, Patrick et STEPANOV, Dmitry. Local tropicalization. in Algebraic and combinatorial aspects of Tropical Geometry, Contemp. Math, 2013, vol. 589, p 253-316. -



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