THEOREM 4.8. Let t is even and l, k are odd positive integers. If c(1 – a - B) + a + 0, then Eq. (1) has no prime period two solution. Proof: Assume that there exists distinct positive solution P and Q, such that ..P, Q, P, Q,., is a prime period two solution of Eq.(1). We see from Eq. (1) when t is even and l, k are odd, then xn+1 = Xn-k = xn-1 = P and xn-t = Q. It follows Eq. (1) that aQ bQ+c aP P = BP+ aP+ and Q = BQ + aQ + bP+c* Therefore, b(1 – a - 8) PQ +c(1-a - B) P = aQ, (35) b (1-α-β) PQ+c(1-α-β ) Q- aP (36) Subtracting (47) from (46) gives (c(1 – a – B) + a) (P– Q) = 0 Since c (1 – a - B) + a + 0, then P = Q. This is a contradiction. Thus, the proof is completed.

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THEOREM 4.8. Let t is even and l, k are odd positive integers. If
c(1 – a –
с — В) + а + 0,
then Eq. (1) has no prime period two solution.
Proof: Assume that there exists distinct positive solution P and Q, such that
....Р, Q, Р, Q, ...,
is a prime period two solution of Eq.(1).
We see from Eq. (1) when t is even and l, k are odd, then xn+1 = xn-k = xn-1 = P and xm-t = Q. It follows
Eq. (1) that
aQ
bQ+c
aP
P = BP+ aP+
and Q
= BQ + aQ+ P+c-
Therefore,
6(1 – a – B) PQ +c(1 - a – B) P = aQ,
(35)
(1 - а - В) РQ + c (1 — а — B)Q — аР,
(36)
Subtracting (47) from (46) gives
(c(1- a – B) + a) (P – Q) = 0
Since c (1 – a – B) + a + 0, then P = Q. This is a contradiction. Thus, the proof is completed.
- a
Transcribed Image Text:THEOREM 4.8. Let t is even and l, k are odd positive integers. If c(1 – a – с — В) + а + 0, then Eq. (1) has no prime period two solution. Proof: Assume that there exists distinct positive solution P and Q, such that ....Р, Q, Р, Q, ..., is a prime period two solution of Eq.(1). We see from Eq. (1) when t is even and l, k are odd, then xn+1 = xn-k = xn-1 = P and xm-t = Q. It follows Eq. (1) that aQ bQ+c aP P = BP+ aP+ and Q = BQ + aQ+ P+c- Therefore, 6(1 – a – B) PQ +c(1 - a – B) P = aQ, (35) (1 - а - В) РQ + c (1 — а — B)Q — аР, (36) Subtracting (47) from (46) gives (c(1- a – B) + a) (P – Q) = 0 Since c (1 – a – B) + a + 0, then P = Q. This is a contradiction. Thus, the proof is completed. - a
Our goal is to obtain some qualitative behavior of the positive solutions of the difference equation
Xn+1 = Bxn-i+axn-k +
axn-t
n = 0, 1, ...,
(1)
bxn-t+c'
where the parameters 3, a, a, b and c are positive real numbers and the initial conditions x-s, x-s+1, ..., x-1,
xo are positive real numbers where s = max{1, k, t}.
.D TT T T
Transcribed Image Text:Our goal is to obtain some qualitative behavior of the positive solutions of the difference equation Xn+1 = Bxn-i+axn-k + axn-t n = 0, 1, ..., (1) bxn-t+c' where the parameters 3, a, a, b and c are positive real numbers and the initial conditions x-s, x-s+1, ..., x-1, xo are positive real numbers where s = max{1, k, t}. .D TT T T
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