Dab tsi yog vertex connectivity nyob rau hauv graph txoj kev xav?
Dab tsi yog vertex connectivity nyob rau hauv graph txoj kev xav?

Video: Dab tsi yog vertex connectivity nyob rau hauv graph txoj kev xav?

Video: Dab tsi yog vertex connectivity nyob rau hauv graph txoj kev xav?
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Vertex Connectivity . Cov vertexconnectivity ntawm a daim duab yog qhov tsawg kawg nkaus tus naj npawb ntawm nodeswhose deletion disconnects nws. Vertex kev sib txuas yog qee zaum hu ua "point kev sib txuas "los yog yooj yim" kev sib txuas "A daim duab nrog yog hais tias txuas nrog, a daim duab nrog tau hais tias yuav tsum sib txuas (Skiena 1990, p.

Hauv qhov no, K vertex txuas ntawm daim duab yog dab tsi?

Hauv daim duab txoj kev xav, a txuas daim duab G xav tias k - vertex - txuas (los yog k - txuas ) yog tias nws muaj ntau dua k qab thiab seem txuas thaum twg tsawg dua k qab raug tshem tawm. Cov vertex - kev sib txuas , los yog xwb kev sib txuas , ntawm a daim duab yog qhov loj tshaj plaws k rau qhov daim duab yog k - vertex - txuas.

Ib yam li ntawd, txiav vertex hauv graph theory yog dab tsi? A txiav vertex yog a vertex uas thaum tshem tawm (nrog nws ciam teb ntug) los ntawm a daim duab tsim cov ntsiab lus ntau dua li yav dhau los hauv daim duab . A txiav edgeis ib ntug uas thaum tshem tawm (the ntsug nyob hauv qhov chaw) los ntawm a daim duab tsim cov khoom siv ntau dua li yav dhau los hauv daim duab . Kuv Cov Lus Teb.

Yog li ntawd, EDGE kev sib txuas yog dab tsi hauv graph txoj kev xav?

Ntug Connectivity . Yam tsawg kawg nkaus ntawm ntug uas deletion ntawm a daim duab disconnects, kuj hu ua kab kev sib txuas . Cov ntug kev sib txuas ntawm ib tug disconnected daim duab yog 0, thaum uas txuas nrog daim duab nrog a daim duab choj 1.

Daim duab txuas txhais li cas?

Txuas Graph . A daim duab uas yog txuas nyob rau hauv kev nkag siab ntawm ib qho chaw topological, piv txwv li, muaj txoj hauv kev los ntawm ib qho taw tes mus rau lwm qhov chaw hauv lub daim duab . A daim duab uas tsis yog txuas hais tias bedisconnected.

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