Results 21 to 30 of about 162,209 (248)

$(1,q=-1)$ Model as a Topological Description of $2d$ String Theory [PDF]

, 1994
We study the $(1,q=-1)$ model coupled to topological gravity as a candidate to describing $2d$ string theory at the self-dual radius. We define the model by analytical continuation of $q>1$ topological recursion relations to $q=-1$. We show that at genus
Adler, Aharany, Aoki, Bouwknegt, di Francesco, Dijkgraaf, Dijkgraaf, Dijkgraaf, Dijkgraaf, Douglas, Fukuma, Jacob Sonnenschein, Klebanov, Klebanov, Kontsevich, Lavi, Li, Li, Lian, Lossev, Montano, Moore, Moore, Mukherji, Mukhi, Verlinde, Witten, Witten, Witten, Witten, Yaron Oz, Yoav Lavi   +31 more
core   +2 more sources

On Construction of Recursion Operators From Lax Representation [PDF]

, 1999
In this work we develop a general procedure for constructing the recursion operators fro non-linear integrable equations admitting Lax representation. Svereal new examples are given.
Atalay Karasu, Drinfeld V. G., Metin Gürses, Sokolov V. V., Vladimir V. Sokolov   +4 more
core   +3 more sources

The Acquisition of Recursion: How Formalism Articulates the Child’s Path

Biolinguistics, 2011
We distinguish three kinds of recursion: Direct Recursion (which delivers a ‘conjunction’ reading), Indirect Recursion, and Generalized Transformations. The essential argument is that Direct Recursion captures the first stage of each recursive structure.
Tom W. Roeper
doaj   +1 more source

Cosymmetries and Nijenhuis recursion operators for difference equations [PDF]

, 2010
In this paper we discuss the concept of cosymmetries and co--recursion operators for difference equations and present a co--recursion operator for the Viallet equation.
Ablowitz M J, Alexander V Mikhailov, Dorfman I, Hereman W, Jing Ping Wang, Kupershmidt B A, Levi D, Levi D, Mansfield E L, Mikhailov A V, Mikhailov A V, Olver P J, Pavlos Xenitidis, Sergyeyev A, Sokolov V V, Tongas A, Wang J P, Xenitidis P, Yamilov R I, Yamilov R I, Zhang G L Gao X S Kapur D, Žiber A V   +21 more
core   +2 more sources

Recursively invariant β-recursion theory

Annals of Mathematical Logic, 1981
AbstractWe introduce recursively invariant β-recursion theory as a new approach towards recursion theory on an arbitraty limit ordinal β. We follow Friedman and Sacks and call a subset of β β-recursively enumerable if it is Σ1-definable over Lβ. Since Friedman-Sacks' notion of a β-finite set is not invariant under β-recursive permutations of β we turn ...
openaire   +1 more source

Recursión, inducción y órdenes bien fundados

Revista Integración, 2011
Con base en la caracterización de los números naturales a partir de la propiedad de recursión (ver [2]), probamos en forma general que para un conjunto dado las propiedades de recursión, inducción y buena fundación son equivalentes entre sí.
Carlos Parra-Londoño, Diego Mejía-Guzmán   +1 more
doaj   +4 more sources

Recursion formulae of higher Weil-Petersson volumes

, 2009
In this paper we study effective recursion formulae for computing intersection numbers of mixed $\psi$ and $\kappa$ classes on moduli spaces of curves.
Liu, Kefeng, Xu, Hao
core   +1 more source

Multicanonical recursions [PDF]

Journal of Statistical Physics, 1996
23 pages, latex, 4 postscript figures included (uuencoded Z-compressed .tar file created by uufiles), figure file corrected.
openaire   +2 more sources

Mesoscale movement and recursion behaviors of Namibian black rhinos

Movement Ecology, 2019
Background Understanding rhino movement behavior, especially their recursive movements, holds significant promise for enhancing rhino conservation efforts, and protecting their habitats and the biodiversity they support.
Dana Paige Seidel, Wayne L. Linklater, Werner Kilian, Pierre du Preez, Wayne M. Getz   +4 more
doaj   +1 more source

Recursion Rules for Scattering Amplitudes in Non-Abelian Gauge Theories [PDF]

, 1996
We present a functional derivation of recursion rules for scattering amplitudes in a non-Abelian gauge theory in a form valid to arbitrary loop order.
A. Jevicki, C. Dunn, Chanju Kim, D. A. Kosower, F. Berends, G. Chalmers, G. Mahlon, G. Mahlon, L. D. Faddeev, L. N. Lipatov, M. J. Duff, S. J. Parke, V. P. Nair, V. P. Nair, Z. Bern, Z. Bern, Z. Bern, Z. Bern   +17 more
core   +2 more sources