Geodesic
On Thom Polynomials for A4(−) via Schur Functions
Serdica Mathematical Journal, Tome 33 (2007) no. 2-3, pp. 301-320

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We study the structure of the Thom polynomials for A4(−) singularities. We analyze the Schur function expansions of these polynomials. We show that partitions indexing the Schur function expansions of Thom polynomials for A4(−) singularities have at most four parts. We simplify the system of equations that determines these polynomials and give a recursive description of Thom polynomials for A4(−) singularities. We also give Thom polynomials for A4(3) and A4(4) singularities.
Keywords: Thom Polynomials, Singularities, Global Singularity Theory, Classes of Degeneracy, Loci, Schur Functions, Resultants 
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Öztürk, Özer. On Thom Polynomials for A4(−) via Schur Functions. Serdica Mathematical Journal, Tome 33 (2007) no. 2-3, pp. 301-320. http://geodesic.mathdoc.fr/item/SMJ2_2007_33_2-3_a4/