Hello, I need some help with creating the complete set of transition states for the following Turing machine: R[_] If anyone knows how to do this or where to...
hi, I am also working on 4.13. I will really appreciate any help with this problem. Thanks ... a ... language. ... reversed ... a ... 1* ... we ... is ... ...
hi, I need help on Sipser, chapter 4 and homework problem 4.13. I will appreciate any help on this homework as soon as possible, it is due tomorrow and I am a...
Hi! Got the answer for 4.12 see if u can use it to prove 4.13. also see yahoo groups messg 1265For 4.13 we need to show that all strings from 1* are in L(G),...
I apologise, that was an attachment which i sent to u r personal mail id. ... strings from 1* are in L(G), not ... appreciate any help on this homework as...
Consider the problem of determining whether a Turing machine M ever prints the symbol x on its tape. Formulate this problem as a language. Use reduction to...
Consider the problem of testing whether a TM ever reaches a state other than its initial state if it starts with a blank tape. Formulate this problem as a...
. Consider the problem of determining whether a Turing machine terminates on all even numbers. Formulate this problem as a language, and use reduction to show...
Hi everyone, I see from the membership numbers that there are a lot of new people on the list--welcome! I don't think the list is currently being promoted...
5.15 Consider the problem of testing whether a TM M on an input w ever attempts to move its head left at any point during its computation on w. Formulate this...
5.15 Consider the problem of testing whether a TM M on an input w ever attempts to move its head left at any point during its computation on w. Formulate this...
________________________________________________________________________ Want to chat instantly with your online friends? Get the FREE Yahoo! Messenger...
hello everybody, i think the solution to the problem of proving that the pcp pver unary alphabet is decidable is reducible to finding solutions to the...
Hi, I used to post questions on this site until I found Rentacoder.com. Nobody wants to do something for free, if they do, then there's something wrong with...
I was asked recently to argue that a rewrite-once TM (one that may only be rewritten once per square) is equivalent to an ordinary TM model... I had some...
... Whenever you need to modify a symbol, mark it first and then copy the tape. What are your issues precisely? Working this out in full detail is quite...
Good afternoon, ... I am a graduate student at DePaul University studying theoretical computer science. My interests lie in both theoretical mathematics and...
hi All strings consist of only one character. Our goal, then, becomes producing a string with the same number of characters. Instead of characters, let's...
Hello, I want to ask a question. In Sipser's book, the problem 9.13 claims: For any time-constructible function t(n), a language is recognizable in O(t(n))...
... I don't have the book, so I don't know the exact definitions you use, but here are some suggestions: 1) Increasing a binary integer takes amortized O(1)...
... recognizable ... time! ... (n). ... if ... (n)), ... Thank you very much. It just occurred to me that the amortized time to update the binary counter is a...
... Hmm... if there's just one tape, then I don't know it it is possible. I'll see what Papadimitrou writes about it, but AFAIK Papadimitrou simply assumed...
Hi Tony, ... I think your reasoning is correct for this. The type of simulation you're doing is very similar to that used in the proof of the Time Hierarchy...
I am a developer currently using the .NET framework, I have used Microsoft technology for the last ten years. Before that I used and developed on IBM...
... Hello! I understand that the concatenations is defined as: AB = { xy : x \in A, y \in B } So each of the words in the AB start with the word from A and end...
Having problems with message search?
Fill out this form to ensure your group is one of the first to be migrated to the new message search system.
