Rational functions and real Schubert calculus
Authors:
A. Eremenko, A. Gabrielov, M. Shapiro and A. Vainshtein
Journal:
Proc. Amer. Math. Soc. 134 (2006), 949957
MSC (2000):
Primary 14P05; Secondary 26C15
Published electronically:
July 25, 2005
MathSciNet review:
2196025
Fulltext PDF Free Access
Abstract 
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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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Additional Information
A. Eremenko
Affiliation:
Department of Mathematics, Purdue University, West Lafayette, Indiana 479072067
Email:
eremenko@math.purdue.edu
A. Gabrielov
Affiliation:
Department of Mathematics, Purdue University, West Lafayette, Indiana 479072067
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/S0002993905080482
PII:
S 00029939(05)080482
Received by editor(s):
August 25, 2004
Received by editor(s) in revised form:
October 29, 2004
Published electronically:
July 25, 2005
Additional Notes:
The authors were supported by NSF grants DMS0100512 and DMS0244421 (A.E.), DMS0200861 and DMS0245628 (A.G.), and DMS0401178 (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.
