obtain the four roots of characteristic equation as follows: p+ Vp? – 8pi? 272 p- Vp? - 8pi? 212 12 = -p+Vp? + 8pr? 13 = 212

Algebra for College Students
10th Edition
ISBN:9781285195780
Author:Jerome E. Kaufmann, Karen L. Schwitters
Publisher:Jerome E. Kaufmann, Karen L. Schwitters
Chapter13: Conic Sections
Section13.5: Systems Involving Nonlinear Equations
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Show me the steps of deremine blue and inf is here i need evey I need all the details step by step and inf is here

Motivated by difference equations and their systems, we consider the following
system of difference equations
Yn
Xn+1 = A + B-
2
, Yn+1 = A + B-
2
(1)
Yn-1
where A and B are positive numbers and the initial values are positive numbers. In
First of all, we consider the change of the variables for system (1) as follows:
Xn
Zn =
A
Уп
tn =
A
From this, system (1) transform into following system:
tn
Zn
, Zn+1 = 1+p2
Zn-1
tn+1 = 1+P2
(2)
%3D
'n-1
where p = > 0. From now on, we study the system (2).
A2
Lemma 1 Let p > 0. Unique positive equilibrium point of system (2) is
(1+T+4p 1+ VI+4p
(F, 2) = ( -
2
2
Now, we consider a transformation as follows:
(tn, tn-1, Zn, Zn-1) →
(f, fi, 8, 81)
where f = 1+ p, fi = tn, g = 1 + p, 81 = Zn. Thus we get the jacobian
matrix about equilibrium point (7, z):
n-1
1
B (,३) =
%3D
12
0 0
1
Thus, the linearized system of system (2) about the unique positive equilibrium point
is given by XN+1 = B (i, z) XN, where
In
tn-1
XN =
Zn
Zn-1
1
B (ī, 2 :
0 0
1
Hence, the characteristic equation of B (i, z) about the unique positive equilibrium
point (7, z) is
4p2
4p2
= 0.
14
Due to t = 7, we can rearrange the characteristic equation such that
?+ 4p°, 4p2
74
14
= 0.
Therefore, we obtain the four roots of characteristic equation as follows:
p+Vp? – 8pi?
272
– Vp² – 8pi?
p- V
12 =
272
-p+Vp? + 8pi?
212
13 =
Fo o o
o oo
Transcribed Image Text:Motivated by difference equations and their systems, we consider the following system of difference equations Yn Xn+1 = A + B- 2 , Yn+1 = A + B- 2 (1) Yn-1 where A and B are positive numbers and the initial values are positive numbers. In First of all, we consider the change of the variables for system (1) as follows: Xn Zn = A Уп tn = A From this, system (1) transform into following system: tn Zn , Zn+1 = 1+p2 Zn-1 tn+1 = 1+P2 (2) %3D 'n-1 where p = > 0. From now on, we study the system (2). A2 Lemma 1 Let p > 0. Unique positive equilibrium point of system (2) is (1+T+4p 1+ VI+4p (F, 2) = ( - 2 2 Now, we consider a transformation as follows: (tn, tn-1, Zn, Zn-1) → (f, fi, 8, 81) where f = 1+ p, fi = tn, g = 1 + p, 81 = Zn. Thus we get the jacobian matrix about equilibrium point (7, z): n-1 1 B (,३) = %3D 12 0 0 1 Thus, the linearized system of system (2) about the unique positive equilibrium point is given by XN+1 = B (i, z) XN, where In tn-1 XN = Zn Zn-1 1 B (ī, 2 : 0 0 1 Hence, the characteristic equation of B (i, z) about the unique positive equilibrium point (7, z) is 4p2 4p2 = 0. 14 Due to t = 7, we can rearrange the characteristic equation such that ?+ 4p°, 4p2 74 14 = 0. Therefore, we obtain the four roots of characteristic equation as follows: p+Vp? – 8pi? 272 – Vp² – 8pi? p- V 12 = 272 -p+Vp? + 8pi? 212 13 = Fo o o o oo
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