منابع مشابه
On the nature of solutions of the difference equation $mathbf{x_{n+1}=x_{n}x_{n-3}-1}$
We investigate the long-term behavior of solutions of the difference equation[ x_{n+1}=x_{n}x_{n-3}-1 ,, n=0 ,, 1 ,, ldots ,, ]noindent where the initial conditions $x_{-3} ,, x_{-2} ,, x_{-1} ,, x_{0}$ are real numbers. In particular, we look at the periodicity and asymptotic periodicity of solutions, as well as the existence of unbounded solutions.
متن کاملMulti-soliton of the (2+1)-dimensional Calogero-Bogoyavlenskii-Schiff equation and KdV equation
A direct rational exponential scheme is offered to construct exact multi-soliton solutions of nonlinear partial differential equation. We have considered the Calogero–Bogoyavlenskii–Schiff equation and KdV equation as two concrete examples to show efficiency of the method. As a result, one wave, two wave and three wave soliton solutions are obtained. Corresponding potential energy of the solito...
متن کاملOn the Diophantine equation q n − 1 q − 1 = y
There exist many results about the Diophantine equation (qn − 1)/(q − 1) = ym, where m ≥ 2 and n ≥ 3. In this paper, we suppose that m = 1, n is an odd integer and q a power of a prime number. Also let y be an integer such that the number of prime divisors of y − 1 is less than or equal to 3. Then we solve completely the Diophantine equation (qn − 1)/(q − 1) = y for infinitely many values of y....
متن کاملOn the Difference Equation xn 1 xnxn − 2 − 1
and Applied Analysis 3 From 2.3 we obtain c 1 b b 1 2b 1 b 1 ⇒ b 1 b 1 2b 1 3b 2 2b 1 , 2.4 which implies b2 − b − 1 0. Hence b x1 or b x2. From this and 2.3 it follows that a b c x1 or a b c x2, from which the result follows. Theorem 2.3. Equation 1.1 has no prime period-four solutions. Proof. Let xn n −2 be a prime period-four solution of 1.1 and x−2 a, x−1 b, x0 c. Then we have x1 x0x−2 − 1 ...
متن کاملOn the Diophantine equation |axn - byn | = 1
If a, b and n are positive integers with b ≥ a and n ≥ 3, then the equation of the title possesses at most one solution in positive integers x and y, with the possible exceptions of (a, b, n) satisfying b = a + 1, 2 ≤ a ≤ min{0.3n, 83} and 17 ≤ n ≤ 347. The proof of this result relies on a variety of diophantine approximation techniques including those of rational approximation to hypergeometri...
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ژورنال
عنوان ژورنال: Bulletin of the Korean Mathematical Society
سال: 2015
ISSN: 1015-8634
DOI: 10.4134/bkms.2015.52.2.513