Ryan Williams

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Name Ryan Williams
Member for 3 years
Seen May 8 at 1:44
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Location California
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Interested in algorithms, complexity, and anything that the rest of mathematics can say about these two.
2

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43

Answers
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36
Can a mathematical definition be wrong?
24
Too old for advanced mathematics?
16
Super-linear time complexity lower bounds for any natural problem in NP?
14
Correct to characterise NP set as P-time image of P set?
13
Complete problems for randomized complexity classes
13
EXPTime algorithms
12
Fast Matrix Multiplication
12
What techniques exist to show that a problem is not NP-complete?
12
What is the best algorithm to find the smallest nonzero Eigenvalue of a symmetric matrix?
11
A language complete for NP intersection co-NP
11
How is #P related to other complexity classes?
10
Finding a cycle of fixed length
9
Applications of the Chinese remainder theorem
9
does the “convolution theorem” apply to weaker algebraic structures?
9
Characterize P^NP
9
Is P=NP relevant to finding proofs of everyday mathematical propositions?
9
P/poly algorithm for polynomial identity testing
8
Non-existence of algorithm converting NP algorithm to P algorithm?
7
Non-uniform constant-depth circuits
7
What is the relationship between “translation” and time complexity?
7
When would you read a paper claiming to have settled a long open problem like $P$ vs. $NP$?
7
Does EXP $\in$ P/poly imply NP=RP?
7
How hard is it to solve SAT if the promise is that it has an odd number of solutions?
6
duplicate detection problem
6
Collapsing of exptime and alternation bounded turing machine
6
What are the most important results (and papers) in complexity theory that every one should know?
6
“NP has linear circuits” --> something interesting? [soft, philosophical, open]
5
Provably intractable problems
5
Characterizing visual proofs
5
Finding all roots of a polynomial
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