The (Nested) Word Problem

نویسنده

  • Christopher S. Henry
چکیده

In this paper we examine a new class of languages defined by Alur and Madhusudan called visibly pushdown languages and use them to study the word problem for finitely generated groups.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Equivalence of Deterministic Nested Word to Word Transducers

We study the equivalence problem of deterministic nested word to word transducers and show it to be surprisingly robust. Modulo polynomial time reductions, it can be identified with 4 equivalence problems for diverse classes of deterministic non-copying order-preserving transducers. In particular, we present polynomial time back and fourth reductions to the morphism equivalence problem on conte...

متن کامل

On Groups Whose Word Problem Is Solved by a Nested Stack Automaton

Accessible groups whose word problems are accepted by a deterministic nested stack automaton with limited erasing are virtually

متن کامل

A Classical Chinese Corpus with Nested Part-of-Speech Tags

We introduce a corpus of classical Chinese poems that has been word segmented and tagged with parts-ofspeech (POS). Due to the ill-defined concept of a ‘word’ in Chinese, previous Chinese corpora suffer from a lack of standardization in word segmentation, resulting in inconsistencies in POS tags, therefore hindering interoperability among corpora. We address this problem with nested POS tags, w...

متن کامل

Synchronizing Automata over Nested Words

We extend the concept of a synchronizing word from finitestate automata (DFA) to nested word automata (NWA): A well-matched nested word is called synchronizing if it resets the control state of any configuration, i.e., takes the NWA from all control states to a single control state. We show that although the shortest synchronizing word for an NWA, if it exists, can be (at most) exponential in t...

متن کامل

Streamability of Nested Word Transductions

We consider the problem of evaluating in streaming (i.e. in a single left-toright pass) a nested word transduction with a limited amount of memory. A transduction T is said to be height bounded memory (HBM) if it can be evaluated with a memory that depends only on the size of T and on the height of the input word. We show that it is decidable in coNPTime for a nested word transduction defined b...

متن کامل

Optimal Solution in a Constrained Distribution System

We develop a method to obtain an optimal solution for a constrained distribution system with several items and multi-retailers. The objective is to determine the procurement frequency as well as the joint shipment interval for each retailer in order to minimize the total costs. The proposed method is applicable to both nested and non-nested policies and ends up with an optimal solution. To solv...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Inf. Process. Lett.

دوره 116  شماره 

صفحات  -

تاریخ انتشار 2016