Dirk Siersma

Address

Preprints

Publications

NWO-Russia Project:  Geometry and Singularity Theory in Mathematical Physics

Intas-Project: Singularities, Bifurcations and Monodromy

Intas-Project: Polynomial Mappings: Algebra, Computation and Topology

Thesis Jiang

Address

Mailing address

Mathematisch Instituut

Universiteit Utrecht
P.O.Box 80.010
3508 TA UTRECHT
The Netherlands

E-mail:

D.Siersma "at" uu.nl

Preprints (since 1995)

On polynomial and meromorphic functions

Dirk Siersma, Mihai Tibar,

Singularities at Infinity and their Vanishing Cycles,

Preprint European Singularity Project, No 67; 1995.
Published in: Duke Mathematical Journal Vol 80, No. 3; December 1995; p 771-783.

Dirk Siersma, Job Smeltink,

Classification of singularities at infinity of polynomials of degree 4 in two variabales,

Preprint 945, Department of Mathematics, University of Utrecht (February, 1996).
Published in: Georgian Mathematical Journal Vol 7 (2000), No 1; p. 179-190.

Dirk Siersma, Mihai Tibar,

Topology of polynomial functions and monodromy dynamics,

C. R. Acad. SCi. Paris, t. 327, Serie I,p. 655-660, 1998

Dirk Siersma, Mihai Tibar,

Singularities at infinity and their vanishing cycles, II. Monodromy.,

Preprint 1088, Department of Mathematics, University of Utrecht (January, 1999)
Published in: Publications of the RIMS, Kyoto University, Vol 36, No 6 (2000), 659-679.

Dirk Siersma, Mihai Tibar,

On the vanishing cycles and  of a meromorphic function on the complement of its poles.,

Preprint, Department of Mathematics, University of Utrecht (May, 1999)
Published in: Contemporary Mathematics, Volume 354 (2004), 277-289

Dirk Siersma, Mihai Tibar,
           Deformations of polynomials, boundary singularities and monodromy.
Preprint, Department of Mathematics, University of Utrecht (July 2002)
Published in: Moscow Mathematical Journal, 3 (2) (2003), 661-697.

Dirk Siersma, Mihai Tibar,

Singularity Exchange at Infinity.

Preprint arXiv math.AG/0401396
Preprint 1295, Department of Mathematics, University of Utrecht (Febrtuary 2004)

Dirk Siersma, Mihai Tibar

Curvature and Gauss-Bonnet defect of global affine hypersurfaces.

Preprint arXiv math.DG/0407056

Sabir M. Gusein-Zade, Dirk Siersma
           Deformations of Polynomials and their zeta functions.
Preprint arXiv. Math AG/0503xxx
Russian ps-version.

On lines on hypersurface

Jiang Guangfeng, Dirk Siersma,

Local embeddings of lines in singular surfaces ,

Preprint 1050, Department of Mathematics, University of Utrecht (February, 1998).
Published in: Annales de l'Institut Fourier, 49 , 4 (1999), 1129-1147.

 

Guangfeng Jiang, Mutsuo Oka, Duc Tai Pho, Dirk Siersma,

 Lines on Brieskorn-Pham Surfaces,

Tokyo Metropolotan University Mathematics Preprint Series; 1999 No. 3 (January 1999)
Published in: Kodai Mathematical Journal, Vol. 23, No2, pp. 214-223, June 2000.

On conflict sets

Dirk Siersma,

Voronoi Diagrams and Morse Theory of the Distance Function

Preprint 967, Department of Mathematics, University of Utrecht (June, 1996).
Published in: O.E. Barndorff-Nielsen and E.B.V. Jensen (eds.), Geometry in Present Day Science, World Scientific, Singapore, etc (1999), 187-208.

 

Dirk Siersma,

Properties of Conflict Sets in the Plane,

Preprint 1089, Department of Mathematics University Utrecht (February, 1999).
Published in: Geometry and Topology of Caustics - Caustics 1998; Banach Center Publications Volume 50 (1999); p. 267 - 276

Jorge Sotomayor, Dirk Siersma, Ronaldo Garcia,

Curvatures of Conflict Surfaces in Euclidean 3-space,

Preprint 1090, Department of Mathematics University Utrecht (February, 1999).
Published in: Geometry and Topology of Caustics - Caustics 1998; Banach Center Publications Volume 50 (1999); p. 277-285.

R. Lindenbergh, W. van der Kallen, D. Siersma,
           Configuration spaces and limits of Voronoi diagrams.
Manuscript september 2002.
Published in: Geometry and Topology of Caustics - Caustics 2002; Banach Center Publications Volume 62 (2003); p. 183-195.

M. van Manen, D. Siersma,
           The nine Morse generic tetrahedra
Manuscript october 2004.  Math.DG/0410251

         M. van Manen, D. Siersma,
                     Power Diagrams and their Applications
         Manuscript august 2005.  Math.MG/0508037;
         will be published in seperate papers.

On round functions

George Khimshiashvili, Dirk Siersma,

On minimal round functions,

Preprint 1118, Department of Mathematics, University of Utrecht (September, 1999).
Summary published in : Bulletin of the Georgian Academy of Science, 164, nr 4 (2000); p 3-7\
Part published as: Remarks on minimal round functions in: Geometry and Topology of Caustics - Caustics 2002; Banach Center Publications Volume 62 (2003); p. 159-172.

On non isolated singularities

Dirk Siersma,

The vanishing topology of non isolated singularities ,

Published in: New Developments in Singularity Theory
(Proceedings of the Advanced Study Institute at the Isaac Newton Institute in Cambridge(UK);
 31 July- 11 August 2000), Kluwer Academic Publishers, Dordrecht, etc (2001), p.447-472

Thesis Jiang

Jiang Guangfeng

Functions with non-isolated singularities on singular spaces.,

Dissertation, University of Utrecht (February 16, 1998).

Personal Links:  www.wijnadvies.nl voor exclusieve wijn

Photographs

Some old files

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Dirk Siersma

Last updated: november 2006