Extended affine root systems of type .
Azam, Saeid, Khalili, Valiollah, Yousofzadeh, Malihe (2005)
Journal of Lie Theory
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Azam, Saeid, Khalili, Valiollah, Yousofzadeh, Malihe (2005)
Journal of Lie Theory
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Viswanath, Sankaran (2007)
Séminaire Lotharingien de Combinatoire [electronic only]
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Timmesfeld, Franz Georg (2003)
Beiträge zur Algebra und Geometrie
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Graczyk, Piotr, Sawyer, Patrice (2003)
Journal of Lie Theory
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Perkins, Sarah B., Rowley, Peter J. (2004)
Journal of Lie Theory
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Chirkov, I.V., Shevelin, M.A. (2001)
Sibirskij Matematicheskij Zhurnal
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David W. Boyd (1994)
Acta Arithmetica
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Kulish, Petr, Lyakhovsky, Vladimir (2008)
SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
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Alain Lascoux, Bernard Leclerc, Jean-Yves Thibon (1996)
Banach Center Publications
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Classes dual to Schubert cycles constitute a basis on the cohomology ring of the flag manifold F, self-adjoint up to indexation with respect to the intersection form. Here, we study the bilinear form (X,Y) :=〈X·Y, c(F)〉 where X,Y are cocycles, c(F) is the total Chern class of F and〈,〉 is the intersection form. This form is related to a twisted action of the symmetric group of the cohomology ring, and to the degenerate affine Hecke algebra. We give a distinguished basis for this form,...
Ronald Ferguson (1997)
Acta Arithmetica
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Sen-Shan Huang (1997)
Acta Arithmetica
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