Journal of the American Mathematical Society

ISSN 1088-6834(online) ISSN 0894-0347(print)



Errata to ``Totally positive Toeplitz matrices and quantum cohomology of partial flag varieties''

Author: Konstanze Rietsch
Journal: J. Amer. Math. Soc. 21 (2008), 611-614
MSC (2000): Primary 20G20, 15A48, 14N35, 14N15
Published electronically: November 7, 2007
Original Article: J. Amer. Math. Soc. 16 (2003), 363-392.
MathSciNet review: 2373362
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Abstract: We make a correction to Remark 4.3 and the proof of Theorem 4.2 (Peterson's Theorem) which identifies $ qH^*(SL_n/P)$ with the coordinate ring $ \mathcal O(\mathcal Y_P)$ of a certain affine stratum of the Peterson variety $ \mathcal Y$. Explicitly, we introduce additional coordinates to obtain a complete coordinate system on $ B^+w_P B^-/B^-$ and then show that they lie in the defining ideal of the Peterson variety $ \mathcal Y_P$, hence play no role in the presentation of $ \mathcal O(\mathcal Y_P)$.

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Additional Information

Konstanze Rietsch
Affiliation: Department of Mathematics, King’s College London, Strand, London WC2R 2LS, United Kingdom

Keywords: Flag varieties, quantum cohomology
Received by editor(s): September 23, 2005
Published electronically: November 7, 2007
Additional Notes: During the writing of this errata article the author was funded by a Royal Society Dorothy Hodgkin Research Fellowship and was visiting the University of Waterloo, Canada.
Article copyright: © Copyright 2007 American Mathematical Society
The copyright for this article reverts to public domain 28 years after publication.