Skip to main content
Search type Search syntax
Tags [tag]
Exact "words here"
Author user:1234
user:me (yours)
Score score:3 (3+)
score:0 (none)
Answers answers:3 (3+)
answers:0 (none)
isaccepted:yes
hasaccepted:no
inquestion:1234
Views views:250
Code code:"if (foo != bar)"
Sections title:apples
body:"apples oranges"
URL url:"*.example.com"
Saves in:saves
Status closed:yes
duplicate:no
migrated:no
wiki:no
Types is:question
is:answer
Exclude -[tag]
-apples
For more details on advanced search visit our help page
Results tagged with
Search options not deleted user 92943

Questions related to the (computational) complexity of solving problems

0 votes

Show that NP is closed under concatenation

Proof: If L1,L2∈NP then there exist a deterministic polynomial verifier for L1 and a deterministic polynomial verifier for L2. A polynomial verifier for L1⋅L2 will receive a split “index” (a natural n …
Avi Tal's user avatar
  • 371
10 votes
4 answers
3k views

Are there languages L1 ⊆ L2 ⊆ L3 when L1 and L3 are NP-Complete languages and L2 ∈ P?

Are there languages L1 ⊆ L2 ⊆ L3 where L1 and L3 are NP-Complete languages and L2 ∈ P? Would this imply P=NP? Thanks
Avi Tal's user avatar
  • 371