Top new questions this week:
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Consider two square matrices $A(x,y)$ and $B(y,z)$ of dimensions $N×N$ containing boolean entries. Consider the output product matrix $C(x,z)$ where $C=AB$ (not boolean matrix multiplication but the ...
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It’s well known that problems such as integer factorization have running times contained in $e^{\text{Poly} \log }$ which is the same $n^{ \text{Poly} \log }$ (actually the log term is itself in a ...
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Together with the research intern I am supervising, we are currently writing some software that requires us to enumerate all connected functional digraphs of $n$ vertices up to isomorphism (also known ...
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Let $F_x : \{0;1\}^n \rightarrow \{0;1\}$ be a family of polyomially sized DNF (with respect to $n$). The key $x$ lives in $\{0;1\}^{\lambda(n)}$, $\lambda(n)$ is polynomially bounded in $n$.
Can such ...
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In the (Weighted) Tree Augmentation Problem, we are given a tree $T = (V,E)$ and a set of additional edges $L$ called links with non-negative costs. Each link $\ell = (u,v)$ covers the tree edges ...
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Greatest hits from previous weeks:
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Stanford University now has a Youtube channel, with free access to HD video of full courses on everything from dynamical systems to quantum entanglement. More conferences and workshops are ...
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Is there a relationship between the Turing Machine and the Lambda calculus - or did they just happen to arise about the same time?
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Factoring and graph isomorphism are problems in NP that are not known to be in P nor to be NP-Complete. What are some other (sufficiently different) natural problems that share this property? ...
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My question today is (as usual) a bit silly; but I would request you to kindly consider it.
I wanted to know about the genesis and/or motivation behind the treewidth concept. I sure understand that ...
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Edit: As indicated below by Mahdi Cheraghchi and in the comments, the paper has been withdrawn. Thanks for the multiple excellent answers on the implications of this claim. I, and hopefully others, ...
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When compilers generate errors for a specific programming language, there's distinction between syntax & semantic errors. E.g. ) + f 3 has ill-formed syntax, ...
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Many experts believe that the $\mathsf{P} \neq \mathsf{NP}$ conjecture is true and use it in their results. My concern is that the complexity strongly depends on the $\mathsf{P} \neq \mathsf{NP}$ ...
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