Recent content by hyderman

  1. H

    Prove that the n-cube is connected, for n ≥ 1

    hello any pone have any idea how to solve this question thanx Prove that the n-cube is connected, for n ≥ 1. (Hint: build the n-cube using two copies of (n − 1)-cube and use induction on n.)
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    Path from Odd Degree Vertex in Simple Graph?

    please help me with this question Show that in every simple graph there is a path from any vertex of odd degree to some other vertex of odd degree? here is my answer please check and correct if its wrong thanx ANSWER: In a simple graph, the sum of the degrees of the vertices must...
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    Determine if G and H are isomorphic

    isomorphic: Two graphs are isomorphic if there is a one-to-one correspondence between their vertices and there is an edge between two vertices of one graph if and only if there is an edge between the two corresponding vertices in the other graph. G: a-5 degrees b-5 . . h- 5...
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    Determine if G and H are isomorphic

    Isomorphic means same shaped,,,,,,,, now i need explanation i tried to follow some examples with no luck
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    Determine if G and H are isomorphic

    okey that's what i have but i still need some one to explain that in steps For G this graph is made of a 3-cycle agc, a 4-cycle hdbf. For H this graph is made of a 7-cycle 2583647. C so G and H are not isomorphic i am not sure if this iright or wrong and the same time i need some...
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    Determine if G and H are isomorphic

    hello thanx i know about the dgrees but i still don't know how to determine that somtime the degree fo the vertices does tell you a bout that... so i know step by step details in order to know all possiblities... i appreciate your help thanx
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    Determine if G and H are isomorphic

    please help by explainig in steps thanks much Determine if G and H are isomorphic. Justify your answer http://img252.imageshack.us/img252/9076/25461570nc6.jpg
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    Determine if the graph isomorphic

    i have the images in this file please click and see thanx http://download.yousendit.com/B7955B3525D78CEB
  9. H

    Determine if the graph isomorphic

    hello how can i determine if the graph isomorphic is there is steps to do that thanx
  10. H

    Solving Recurrence Relation w/ Initial Conditions for n-digit Sequences

    a) we have property starts with 0,1,2.3.4 so there are n-1 digits of sequence sio i think the recurrence should be 0+(an-1)^3times therefore 3an-1 + 5 b) initial condition a0=1 and a1=1 c) 3n-1+ 5n-1 + an-1 please i just need some one to explain this in steps ... this type of...
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    Solving Recurrence Relation w/ Initial Conditions for n-digit Sequences

    hello any one can help me with this question thanx (a) Find a recurrence relation for the number of n-digit sequences over the alphabet {0, 1, 2, 3, 4} with at least one 1 and the first 1 occurring before the first 0 (possibly no 0’s). (b) What are the initial conditions? (c)...
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    Solve the recurrence relation a_n = a_n-1 + 20a_n-2

    hello please check my answer and let me know if there are any errors and if there are better ways to solve ... Solve the recurrence relation an = an−1 + 20an−2 with a0 = −1 and a1 = 13. Step – I : Find Characteristic equation and solve for its roots: an = an−1 +...
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    Simple graph with at least two vertices

    okey can you tell me ur opinion on this thanx Assume that the graph has n vertices. Each of those vertices is connected to either 0, 1, 2, ..., n−1 other vertices. If any of the vertices is connected to n−1 vertices, then it is connected to all the others, so there cannot be a vertex...
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    Simple graph with at least two vertices

    please explain more in details
  15. H

    Simple graph with at least two vertices

    thanx for replyng i did draw a graph but i still can't understand the whole question i know that Each vertices is connected to either 0, 1, 2, ..., n−1 other vertices but i cannot get the whole idea please help i
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