## maxima-lang-es — Spanish-language discussion of the Maxima computer algebra system

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 [Maxima-lang-es] implementar teorema de Wick From: jmm - 2010-03-14 18:21:34 Attachments: Message as HTML ```Hola estoy tratando de implementar en maxima una regla para calcular valores esperados para operadores bosónicos vía teorema de Wick. La regla que quiero implementar es: b[i] . adj(b[j]) --> adj(b[j]) . b[i] + deltakron[i,j] el código que pensé que haría eso es: matchdeclare([boson,arg1,arg2],true); defrule(wick01, boson[arg2] . adj(boson[arg1]) , adj( boson[arg1] ) . boson[arg2] + deltakron[i,j]); la regla funciona bien para un producto simple: %i5 applyb2(adj(a[i]) . a[j] ); %o5 a[j] . adj(a[i]) + deltakron[i,j] sin embargo, si lo quiero aplicar a la expresión a[i] . a[j] . adj(a[k]) . adj(a[l]) applyb2 no reconoce que contiene subexpresiones a las que corresponde aplicarle el remplazo. ¿Cuál sería la forma correcta de hacerlo? Desde ya, gracias. Nos vemos mauricio ```

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