Mathematics
Hendrik Jan's user avatar
Hendrik Jan's user avatar
Hendrik Jan's user avatar
Hendrik Jan
  • Member for 11 years, 6 months
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  • Netherlands
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answer
13
Is the inclusion of a regular language in a context-free language decidable?
Oct 22, 2012
answer
6
Does there exist a universal pushdown automaton?
Oct 19, 2012
answer
6
Generating functions for context-free languages
Nov 2, 2012
answer
5
prove (by grammar or closures) that the prefix language is context free
Jan 5, 2013
answer
5
How many unique shapes can be created from a wiggly snake of $k$ links?
Dec 4, 2012
answer
4
how to Compute the number of pairwise non-isomorphic 7-regular graphs on 10 vertices?
Oct 20, 2012
answer
4
How do I prove a combinatorial statement about the change-making problem when using the greedy algorithm?
Dec 1, 2012
answer
4
Need Help to convert a grammar into Chomsky Form
Dec 27, 2013
answer
4
Is there a subset of a non regular language that is regular
Nov 13, 2012
question
3
Sequences that contain subsequence $1,2,3$
Apr 1, 2015
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60
Minimum spanning tree vs Shortest path
38
Algorithms computing if a number is a multiple of 3
36
Planar regular languages
28
Planar regular languages
26
Why are computability problems always written in full caps?