[PDF] Top 20 Groups with poly context free word problem

... for groups of derived length at most two and when G is torsion-free (Theorems ...for groups of derived length at most n ≥ 2, and let G have derived length n + 1 and be not virtually ... See full document

... the word problem of a semigroup lying in a class F of ...with groups, if F is closed under inverse homomorphism, then membership of the word problem in F is independent of the choice of ... See full document

... specific word called word sense ...particular word. In this article, an Arabic parser through using Context-Free- Grammar is presented for a word level to reduce the word ... See full document

... of groups with MCF word problem is closed under free ...of groups with MCF word problem is closed under taking finitely generated ... See full document

... We shall build our pda N out of a finite state automaton (fsa) M for which L(M ) ∩ L = K ∩ L (where L(M ) is the set of words accepted by M ). The construction is (in effect) described in the proof of [8, Theorem 2.2] ... See full document

... In his foundational paper [28] Nambooripad made the fundamental observation that the set of idempotents E(S) of an arbitrary semigroup S carries the abstract structure of a so-called biordered set (or regular biordered ... See full document

... of word-aligned parallel texts; see for instance Chiang (2007) and the references ...practical problem with this approach, apart from the sheer number of the rules that result from the extraction procedure, ... See full document

... surface groups and free groups respectively, and calculated th e vir­ tu al cohomological dimension in each ...orphism groups of poly-surface and poly-free groups ... See full document

... the word problem for groups (Given a group G, is there an algorithm which determines, in finite time, whether or not any given finite product of generators is ... See full document

... input word at constant rate. It is easy to show that finitely generated free and hence also virtually free groups have 1-tape real-time word prob- ...abelian, groups have 1-tape ... See full document

... In 1997, Shor published in [37] his distinguished quantum computational algorithms and he pointed out in this paper that with his algorithms the factorization of an integer and the computation of discrete logarithm are ... See full document

... of context-free languages, which also hold for many other classes of languages, so that our results extend to groups with co-word problem in various other language classes (and all the ... See full document

... include free groups, free abelian groups and braid ...Artin groups are sometimes referred to as generalized braid groups, the latter introduced explicitly by Emil Artin in ... See full document

... incorporate word embedding features in the neural CWS, pre-training the word embeddings in the large-scale labeled ...containing word information, yet obtaining higher F1 ... See full document

... An Augmented Context Free Grammar for Discourse An Augmented Context Free Grammar for Discourse Abstract This paper presents an augmented context free grammar which describes important features of the[.] ... See full document

... 4. When her eyes met him, he saw that she meant the absolutely very gloomy word she was saying, and he pressed her hand again, tenderly. How could he even think for a moment about leaving this beautiful, ... See full document

... into word-like units within the first year of life (Jusczyk and Aslin, ...perform word segmentation ...in context and is constrained by the events occurring in the daily life of the ...simultaneously ... See full document

... We give a m u c h simpler undecidability proof of the emptiness problem using a reduction to the emptiness problem of the intersection of arbitrary context-free languages, a reduction th[r] ... See full document

... fundamental groups of geometric 3-manifolds which con- tain two generator subgroups which are not even ...not word-hyperbolic, however Long showed in [8] that the fundamental group of a hyperbolic ... See full document

... at word level, determining whether each word is “good” or “bad” (in the binary variant), or is “good”, or should be “substitute” or “delete” (in the multi-class ...isting word features, we propose ... See full document