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Rational functions and real Schubert calculus
Authors:
A. Eremenko, A. Gabrielov, M. Shapiro and A. Vainshtein
Journal:
Proc. Amer. Math. Soc. 134 (2006), 949-957
MSC (2000):
Primary 14P05; Secondary 26C15
Posted:
July 25, 2005
MathSciNet review:
2196025
Full-text PDF Free Access
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Additional Information
Abstract: We single out some problems of Schubert calculus of subspaces of codimension  that have the property that all their solutions are real whenever the data are real. Our arguments explore the connection between subspaces of codimension  and rational functions of one variable.
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- A. Eremenko and A. Gabrielov, Wronski map and Grassmannians of real codimension 2 subspaces, Computational Methods and Function Theory, 1 (2001) 1-25. MR 1931599 (2003h:26022)
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Additional Information
A. Eremenko
Affiliation:
Department of Mathematics, Purdue University, West Lafayette, Indiana 47907-2067
Email:
eremenko@math.purdue.edu
A. Gabrielov
Affiliation:
Department of Mathematics, Purdue University, West Lafayette, Indiana 47907-2067
Email:
agabriel@math.purdue.edu
M. Shapiro
Affiliation:
Department of Mathematics, Michigan State University, East Lansing, Michigan 48824
Email:
mshapiro@math.msu.edu
A. Vainshtein
Affiliation:
Department of Computer Science, University of Haifa, Mount Carmel, 31905 Haifa, Israel
Email:
alek@cs.haifa.ac.il
DOI:
http://dx.doi.org/10.1090/S0002-9939-05-08048-2
PII:
S 0002-9939(05)08048-2
Received by editor(s):
August 25, 2004
Received by editor(s) in revised form:
October 29, 2004
Posted:
July 25, 2005
Additional Notes:
The authors were supported by NSF grants DMS-0100512 and DMS-0244421 (A.E.), DMS-0200861 and DMS-0245628 (A.G.), and DMS-0401178 (M.S.); and by the BSF grant 2002375 (M.S. and A.V.) and by the Institute of Quantum Science, MSU (M.S.).
Communicated by:
John R. Stembridge
Article copyright:
© Copyright 2005 American Mathematical Society
The copyright for this article reverts to public domain 28 years after publication.
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