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By Paul-Jean Cahen, Marco Fontana, Evan Houston, Salah-Eddine Kabbaj

ISBN-10: 0824798155

ISBN-13: 9780824798154

Court cases of the second one overseas convention on Cumulative Ring concept held in June 1992 at Fes, Morocco. Paper.

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Excellent fits have been obtained for (1) the Kardar-Parisi-Zhang equation of interface growth [27], (2) the directed percolation universality class [22] and (3) the critical 2D voter model on a triangular lattice [47]. These comparisons also clearly show that a non-logarithmic representation of age with 0 D Q 0 D 0 would not nearly reproduce the data as satisfactorially. For a recent review and a detailed list of references, see [24]. 2 The only previously known example of this had been obtained for the ageing algebra, where time-translations are excluded, see (24).

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D x i . d P C i vC Cd vi /; (30) and V a is defined in (19), whose arguments are in this case V i and y a . The totally T-dualized action will be obtained by eliminating the gauge fields from the gauge fixed action, using their equations of motion. Varying the action (29) over the gauge fields vi˙ one obtains j ˘N ˙ij v 1 Ģ˙ia Q ab @ yb C @ yi D ˙ˇi˙ : 2 (31) Complete T-Dualization of a String in a Weakly Curved Background 19 Using the fact that the background field composition ˘N ˙ij is inverse to 2Ä we can rewrite the equation of motion (31) expressing the gauge fields as vi D 2Ä Using ˘˙ab bi D ij ji ˘˙aj ij h Ģ˙ja Q ab @ yb ij , i 1 @ yj ˙ ˇj˙ : 2 (32) 1 2Ä (33) ; we note that ˘˙ja Q ab D ic ˘˙ca Q ab D ib ; and obtain vi D i Ä ij @ y ˙ 2Ä ˇj˙ : (34) Substituting (34) into (29), the action becomes Z S DÄ d2 h @C yi Ä Ä2 C @C ya aj C @C yi Ä2 C @C ya Ä Q ab 2 jk Using ˘N ˙ij D ji ; ˘˙ij ˘˙aj this action as ij ij Ä2 ˘N Cj k ˘N Cj k Ä2 ai ik ˘N Ckl Ä 2 Ä ka C 2 ki C ˘N Cij lj Á Ä 2 Q ab ˘Cbj ai ia jb (35) @ yj Ä2 Ä2 ai ij ji Á @ yi Á Q ba @ ya ˘Cjb ˘Cic Q cb Ä 2 Q ac ˘Cci ib Á i @ yb : 1 k Q 1 c ˘N ˙j i D 2Ä ıi ; ˘˙ab bc D cb ˘Q ˙ba D 2Ä ıa ; ˘˙ab bi D D ˘˙ib ba and ci ˘N ˙ik D Q ca ˘˙ak , one can rewrite kj ja Ä2 SD 2 Z d 2 @C y @ y : In order to find the background fields argument order of Eq.

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Commutative ring theory: proceedings of the II international conference by Paul-Jean Cahen, Marco Fontana, Evan Houston, Salah-Eddine Kabbaj

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