Dab tsi cliques hauv graphs?

Cov txheej txheem:

Dab tsi cliques hauv graphs?
Dab tsi cliques hauv graphs?

Video: Dab tsi cliques hauv graphs?

Video: Dab tsi cliques hauv graphs?
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Anonim

A clique yog a qhov ua tiav subgraph ntawm daim duab. Qhov siab tshaj plaws ntawm cliques tau nyob rau hauv ib daim duab nrog cov nodes yog txiav txim. Tsis tas li ntawd, cov ciam teb tau txais rau ntau qhov sib txawv ntawm qhov sib txawv ntawm cov cliques ua tau hauv cov duab zoo li no.

Koj pom cliques ntawm daim duab li cas?

Nyob rau nrhiav clique ntawm G:

  1. xav tias G muaj n vertices.
  2. Nrhiav qhov vertex v ntawm qhov tsawg tshaj plaws tau degree hauv G.
  3. Yog qhov degree ntawm v yog n − 1, nres; G yog clique, yog li qhov loj tshaj plaws clique hauv G muaj loj n.
  4. Txwv tsis pub, tshem v thiab tag nrho nws cov npoo ntawm G. Nrhiav qhov loj tshaj plaws clique hauv cov duab me me.

Dab tsi yog clique hauv daim duab qhia?

Peb txhais cov clique raws li hauv qab no: Ib pawg ntawm daim duab qhiatxaus siab rau cov xwm txheej hauv qab no yog hu ua clique: i) Cov subset muaj tsawg kawg 3 lub ntsiab lus. … iii) Cov subset yog qhov loj tshaj plaws.

Puas yog cliques ua tiav daim duab?

Ib daim duab tiav feem ntau hu ua a clique. Qhov loj ntawm qhov loj tshaj plaws clique uas tuaj yeem ua los ntawm cov npoo thiab qhov chaw ntawm G yog hu ua tus lej ntawm G.

Dab tsi yog qhov sib txawv ntawm clique thiab pawg phooj ywg?

Tsis zoo li ib pawg phooj ywg, cliques feem ntau tsis sib raug zoo sab nraud ntawm lawv pawgHloov chaw, lawv ua txhua yam ua ke suav nrog noj su ua ke, zaum ua ke hauv chav kawm thiab sib tham ua ke tom qab tsev kawm ntawv. … 2 Cliques muab lawv ib qho chaw uas lawv muaj peev xwm ua tau raws li kev sib raug zoo thiab xav tias lawv muaj.

Pom zoo: