Dual of Graph | Geometric Dual of Graph | Graph Theory | By :- Harendra Sharma

In this lecture we are going to learn how to make dual of a graph
Steps to make dual
1. Mark all regions in a graph and point them R1, R2, R3 and so on.
2. Replace all regions point to vertex (point) P1, P2 P3 and so on.
3. If two regions Ri and Rj are adjacent (have common edge) draw a line joining point Pi & Pj
that intersect the common edge between Ri & Rj exactly once.
4. If there is more than one edge common between Ri & Rj draw one line between point Pi &
Pj for each of the common edge.
5. For an edge e lying entirely in one region say Rk draw a self loop at point Pk intersecting e
exactly once.
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By- Harendra Sharma
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[@bhavanic9620]

Super sir... Really ur explanation is too easy to understand,.. I soo happy... Bcz... In clg really I won't understand this concept.. Now came to know... 😊😊....

[@vidyutawasthi7814]

You still didn't understood the concept.

[@avinashcinesh3562]

Great explanation sir💯🔥
I understood the topic very easily❤️

[@fakharalam7965]

What a method sir....good.

[@mohinivadigina8842]

Excellent explanation...I am very easy to understand that topic....tq sir

[@chauhanvishal2943]

Very useful , thank you sir

[@UditanshPatel]

Thank you for helping me in my exams. This video was really informative. Keep making such videos sir!

[@SohansinghSohansingh-sn5sp]

best explanation ❤😊

[@minalvasava5391]

Awesome explanation 👌😍

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Thank you sir !

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Great explanation,, 👏 👏,, sir please notes bhi available krwa dijiye 🙏🙏

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Love from Kashmir sir!!

[@saranyav8128]

Super sir 👌 well explanation 💯

[@srilayakannath7486]

❤️ thnks

[@BipinKumar-cl7nx]

Very nice teaching sir.

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Thank you sir......... 😭😭😭 🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏

[@jeevanjeevan.s2894]

hey exams tommorow??

[@anmolsingh3482]

Great explanation Sir!!

[@AneesTyagi-y9q]

Thank you sir

[@sujithkumar324]

Thank you sir❤❤

[@WardaRehman-n4d]

Niegborhood of graph or twin class ki video bi banya Kal tk

[@multitech336]

Dual dual graph banane ke liye use graph ka planar graph hona zaruri hai

[@karthikbhandary6525]

Super

[@diptamoy12]

Great sir❤️

[@khatunbanoansari4021]

Sir please give another example of dual graph like kn, wn, pn etc...

[@abhishekpandit4791]

Thank you so much ❤

[@mahamaziz7915]

Superbbbb

[@BipinKumar-cl7nx]

Please upload more videos.

[@subhrajeetpradhan925]

Thank you sir soo much

[@abinsunny7]

Tysm

[@manoj_kumar_malviyan]

🙏🙏🙏

[@krtech8233]

Good class

[@MalaikaShah-f2q]

Can you suggest any books for graph theory

[@Vivek-kf7ql]

my college teacher watches your videos and then teaches us! :)

[@sumiyatamannur423]

Thank you so much!!

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thal(sir) al(R) to(ko) p kyu le rhe h

[@gaurav8877]

Sir msc 4sem graph theory ke or video banaiye

[@aspurnalakshimi]

i dont understand hindi .Still i understood your teaching .

[@padmajapriyadarsinisahoo4386]

Sir number of edges in g and g' are equal hoga kya

[@prateeksharma9634]

P3 se P5 nahi hoga folks?

[@RakeshKumar-lk8et]

Self loop lene ka Karan ye hai ki vaha par ak pendent vertex se ak edge hai jisako interest karna hai

[@akankshatembhare9448]

👍

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Books me bahut complicated krke diya hua thha😢

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😇

[@sobharani4287]

Number of edges for the graph you have taken, howmuch??

[@MechanicalBee1]

👌

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Sir i want to talk to u regarding a topic in Graph theory...pls drop me a msg

[@bhavanic9620]

Super sir... Really ur explanation is too easy to understand,.. I soo happy... Bcz... In clg really I won't understand this concept.. Now came to know... 😊😊....