In each of Problems 62 through 65 , find the solution of the given initial value problem. Plot the graph of the solution and describe how the solution behaves as x → 0 . x 2 y ″ + 3 x y ′ + 5 y = 0 , y ( 1 ) = 1 , y ′ ( 1 ) = − 1
In each of Problems 62 through 65 , find the solution of the given initial value problem. Plot the graph of the solution and describe how the solution behaves as x → 0 . x 2 y ″ + 3 x y ′ + 5 y = 0 , y ( 1 ) = 1 , y ′ ( 1 ) = − 1
In each of Problems
62
through
65
, find the solution of the given initial value problem. Plot the graph of the solution and describe how the solution behaves as
x
→
0
.
x
2
y
″
+
3
x
y
′
+
5
y
=
0
,
y
(
1
)
=
1
,
y
′
(
1
)
=
−
1
Q1) Classify the following statements as a true or false statements
a. Any ring with identity is a finitely generated right R module.-
b. An ideal 22 is small ideal in Z
c. A nontrivial direct summand of a module cannot be large or small submodule
d. The sum of a finite family of small submodules of a module M is small in M
A module M 0 is called directly indecomposable if and only if 0 and M are
the only direct summands of M
f. A monomorphism a: M-N is said to split if and only if Ker(a) is a direct-
summand in M
& Z₂ contains no minimal submodules
h. Qz is a finitely generated module
i. Every divisible Z-module is injective
j. Every free module is a projective module
Q4) Give an example and explain your claim in each case
a) A module M which has two composition senes 7
b) A free subset of a modale
c) A free module
24
d) A module contains a direct summand submodule 7,
e) A short exact sequence of modules 74.
*************
*********************************
Q.1) Classify the following statements as a true or false statements:
a. If M is a module, then every proper submodule of M is contained in a maximal
submodule of M.
b. The sum of a finite family of small submodules of a module M is small in M.
c. Zz is directly indecomposable.
d. An epimorphism a: M→ N is called solit iff Ker(a) is a direct summand in M.
e. The Z-module has two composition series.
Z
6Z
f. Zz does not have a composition series.
g. Any finitely generated module is a free module.
h. If O→A MW→ 0 is short exact sequence then f is epimorphism.
i. If f is a homomorphism then f-1 is also a homomorphism.
Maximal C≤A if and only if is simple.
Sup
Q.4) Give an example and explain your claim in each case:
Monomorphism not split.
b) A finite free module.
c) Semisimple module.
d) A small submodule A of a module N and a homomorphism op: MN, but
(A) is not small in M.
Prove that
Σ
prime p≤x
p=3 (mod 10)
1
Ρ
=
for some constant A.
log log x + A+O
1
log x
"
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