Results 111 to 120 of about 12,131,620 (254)

Normal-order reduction grammars

open access: yes, 2016
We present an algorithm which, for given $n$, generates an unambiguous regular tree grammar defining the set of combinatory logic terms, over the set $\{S,K\}$ of primitive combinators, requiring exactly $n$ normal-order reduction steps to normalize.
Bendkowski, Maciej
core   +1 more source

Dirac optimal reduction [PDF]

open access: yesarXiv, 2010
The purpose of this paper is to generalize the regular Optimal Reduction Theorem to general proper Dirac actions, formulated both in terms of point and orbit reduction. A comparison to general standard singular Dirac reduction is given emphasizing the desingularization role played by optimal reduction.
arxiv  

Stable reduction of $X_0(p^4)$ [PDF]

open access: yesarXiv, 2011
R. Coleman and K. McMurdy compute the stable reduction of $X_0(p^3).$ On the basis of their ideas, we compute the stable reduction of $X_0(p^4).$ As a result, in the stable reduction of $X_0(p^4)$, we find irreducible components, defined by $a^p-a=t^{p+1}$.
arxiv  

A new construction of naturally reductive spaces [PDF]

open access: yesarXiv, 2016
A new construction of naturally reductive spaces is presented. This construction gives a large amount of new families of naturally reductive spaces. First the infinitesimal models of the new naturally reductive spaces are constructed. A concrete transitive group of isometries is given for the new spaces and also the naturally reductive structure with ...
arxiv  

Reduction-Based Creative Telescoping for Fuchsian D-finite Functions [PDF]

open access: yesarXiv, 2016
Continuing a series of articles in the past few years on creative telescoping using reductions, we adapt Trager's Hermite reduction for algebraic functions to fuchsian D-finite functions and develop a reduction-based creative telescoping algorithm for this class of functions, thereby generalizing our recent reduction-based algorithm for algebraic ...
arxiv  

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