Let F-C denote the basic quasi-symmetric functions, in Gessel's notation (1984) (C any composition). The plethysm s(lambda) circle F-C is a positive linear combination of functions F-D. Under certain conditions, the image under the involution omega of a quasi-symmetric function defined by equalities and inequalities of the variables is obtained by negating the inequalities. (C) 1998 Elsevier Science B.V. All rights reserved.
Plethysm and conjugation of quasi-symmetric functions / Malvenuto, C., Christophe, R.. - In: DISCRETE MATHEMATICS. - ISSN 0012-365X. - STAMPA. - 193:1-3(1998), pp. 225-233. [10.1016/s0012-365x(98)00142-3]
Plethysm and conjugation of quasi-symmetric functions
MALVENUTO, Claudia;
1998
Abstract
Let F-C denote the basic quasi-symmetric functions, in Gessel's notation (1984) (C any composition). The plethysm s(lambda) circle F-C is a positive linear combination of functions F-D. Under certain conditions, the image under the involution omega of a quasi-symmetric function defined by equalities and inequalities of the variables is obtained by negating the inequalities. (C) 1998 Elsevier Science B.V. All rights reserved.File allegati a questo prodotto
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