Geodesic
Positivity of Schur function expansions of Thom polynomials
Piotr Pragacz1 ; Andrzej Weber2
1Institute of Mathematics Polish Academy of Sciences Śniadeckich 8 00-956 Warszawa, Poland
2Department of Mathematics Warsaw University Banacha 2 02-097 Warszawa, Poland
Fundamenta Mathematicae, Tome 195 (2007) no. 1, pp. 85-95
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Combining the approach to Thom polynomials via classifying spaces of singularities with the Fulton–Lazarsfeld theory of cone classes and positive polynomials for ample vector bundles, we show that the coefficients of the Schur function expansions of the Thom polynomials of stable singularities are nonnegative with positive sum.
DOI : 10.4064/fm195-1-3
Keywords: combining approach thom polynomials via classifying spaces singularities fulton lazarsfeld theory cone classes positive polynomials ample vector bundles coefficients schur function expansions thom polynomials stable singularities nonnegative positive sum

Piotr Pragacz  1   ; Andrzej Weber  2

1 Institute of Mathematics Polish Academy of Sciences Śniadeckich 8 00-956 Warszawa, Poland
2 Department of Mathematics Warsaw University Banacha 2 02-097 Warszawa, Poland 
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Piotr Pragacz; Andrzej Weber. Positivity of Schur function expansions
 of Thom polynomials. Fundamenta Mathematicae, Tome 195 (2007) no. 1, pp. 85-95. doi: 10.4064/fm195-1-3

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