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49 Favorites

Added Views Newest Activity Votes

votes

answer

154

views

What class of languages is recognized by finite-state automata with $k$ heads?

Oct 6 at 20:59 Abuzer Yakaryilmaz 3,575

votes

answer

184

views

Holant problems and holographic reduction: simple graphs or multigraphs?

counting-complexity

Aug 28 at 11:55 a3nm 6,484

votes

answers

322

views

A variant of #POSITIVE-2-DNF

reference-request counting-complexity

Aug 9 at 19:04 M.Monet 798

votes

answers

views

Counting matchings on 3-regular bipartite graphs

counting-complexity matching bipartite-graphs

Jul 9 at 23:38 M.Monet 798

votes

answers

351

views

Perfect matching of monotone Boolean function with null Euler characteristic

boolean-functions matching monotone

May 26 at 16:56 Lieuwe Vinkhuijzen 1,260

votes

answers

138

views

NP-hardness proof of selecting the ''fittest'' topological sequence of a DAG

np-hardness partial-order topological-graph-theory

Apr 17 at 6:51 user51340 101

votes

answers

182

views

Largest “non-disturbing” subset in a graph

graph-algorithms

Apr 12 at 7:29 Egor Skriptunoff 161

votes

answer

174

views

Möbius values of CNF and DNF lattices of a monotone Boolean function

boolean-functions combinatorics lattice

Apr 1 at 20:09 M.Monet 798

votes

answers

157

views

Is S-T CONNECTEDNESS #P-complete on instances when all s-t paths are of the same length?

cc.complexity-theory counting-complexity

Jan 22 at 12:42 Victor 165

votes

answers

961

views

what is easy for minor-excluded graphs?

ds.algorithms graph-theory graph-minor

Jan 4 '19 at 10:32 Rupei Xu 2,299

vote

answers

views

Points of a finite set wihtin a ball

ds.data-structures computational-geometry metric-spaces

Dec 25 '18 at 8:40 C.P. 922

votes

answers

150

views

Optimal set union tree

optimization tree binary-trees set-system

Oct 14 '18 at 15:57 AmeerJ 527

votes

answer

334

views

“Verifiable information”: is this a known concept?

cc.complexity-theory reference-request

Sep 23 '18 at 6:58 Bjørn Kjos-Hanssen♦ 4,208

votes

answer

222

views

How fast can we find and disconnect roots in a forest?

ds.data-structures lower-bounds tree

May 21 '18 at 4:45 Dmitri Urbanowicz 378

votes

answer

189

views

How hard is it to determine the chromatic number of a unit distance graph?

cc.complexity-theory graph-theory np-hardness planar-graphs

May 18 '18 at 20:54 domotorp 12.4k

votes

answers

138

views

Has what I am calling “helpfulness” here been studied?

reference-request circuit-complexity boolean-functions

Mar 15 '18 at 20:38 Samuel Schlesinger 1,520

votes

answer

411

views

What is the complexity of this graph problem?

graph-theory graph-algorithms np-hardness

Feb 21 '18 at 14:44 Marzio De Biasi 20.9k

votes

answer

246

views

Transition monoid membership for DFAs

automata-theory regular-language monoid

May 18 '17 at 0:12 D.W. 8,461

votes

answers

545

views

Is it NP-hard to find (the root of) a small decision tree for a monotone boolean function?

graph-theory boolean-functions

Jan 29 '17 at 10:33 Radu GRIGore 4,521

votes

answers

views

Complexity of computing the simplicial width of a graph

reference-request graph-theory clique treewidth

Nov 29 '16 at 13:40 Community♦ 1

votes

answers

169

views

NP-completeness of a specific topological sorting problem

cc.complexity-theory np-hardness directed-acyclic-graph partial-order

Sep 26 '16 at 16:10 Community♦ 1

votes

answer

189

views

Tree-decomposition with clique interfaces

reference-request graph-theory clique treewidth

Mar 16 '16 at 17:54 David Eppstein 47.3k

votes

answer

308

views

Separating words with random DFAs

dfa random-graphs

Dec 26 '15 at 20:55 Community♦ 1

votes

answers

489

views

Simple path on dag with backward edges

graph-algorithms time-complexity disjoint-paths

Aug 17 '15 at 20:47 Community♦ 1

votes

answers

623

views

The complexity of checking whether two DAG have the same number of topological sorts

cc.complexity-theory complexity-classes counting-complexity open-problem partial-order

Aug 15 '15 at 4:42 Community♦ 1

votes

answers

525

views

Has this formulation of pursuit evasion been researched? Similar to Helicopter Cops and Robbers Game

graph-theory graph-algorithms

Jun 3 '15 at 20:18 Edvin 31

votes

answers

109

views

Computing the most likely winner in elections : intermediate case between Kemeny and Borda?

ds.algorithms reference-request optimization

Aug 7 '14 at 15:57 Joseph Stack 1,085

votes

answer

100

views

Upper bound to number of closed itemsets

co.combinatorics upper-bounds data-mining

May 7 '14 at 0:44 Magic Banana 31

votes

answers

232

views

Hardness of optimal sorting

ds.algorithms lower-bounds sorting

Feb 19 '14 at 9:43 Joseph Stack 1,085

votes

answers

147

views

Lower bound for the maximal vectors problem

ds.algorithms reference-request cg.comp-geom optimization

Feb 6 '14 at 17:52 Joseph Stack 1,085

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49 Favorites

What class of languages is recognized by finite-state automata with $k$ heads?

Holant problems and holographic reduction: simple graphs or multigraphs?

A variant of #POSITIVE-2-DNF

Counting matchings on 3-regular bipartite graphs

Perfect matching of monotone Boolean function with null Euler characteristic

NP-hardness proof of selecting the ''fittest'' topological sequence of a DAG

Largest “non-disturbing” subset in a graph

Möbius values of CNF and DNF lattices of a monotone Boolean function

Is S-T CONNECTEDNESS #P-complete on instances when all s-t paths are of the same length?

what is easy for minor-excluded graphs?

Points of a finite set wihtin a ball

Optimal set union tree

“Verifiable information”: is this a known concept?

How fast can we find and disconnect roots in a forest?

How hard is it to determine the chromatic number of a unit distance graph?

Has what I am calling “helpfulness” here been studied?

What is the complexity of this graph problem?

Transition monoid membership for DFAs

Is it NP-hard to find (the root of) a small decision tree for a monotone boolean function?

Complexity of computing the simplicial width of a graph

NP-completeness of a specific topological sorting problem

Tree-decomposition with clique interfaces

Separating words with random DFAs

Simple path on dag with backward edges

The complexity of checking whether two DAG have the same number of topological sorts

Has this formulation of pursuit evasion been researched? Similar to Helicopter Cops and Robbers Game

Computing the most likely winner in elections : intermediate case between Kemeny and Borda?

Upper bound to number of closed itemsets

Hardness of optimal sorting

Lower bound for the maximal vectors problem