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Assignmet Quiz

Total questions: 21

Worksheet time: 11mins

Name
Class
Date
1.

If N' is a Banach space then B(N, N') is a

a)

normed linear space

b)

not a Banach space

c)

Banach space

d)

Linear space

2.

N is said to be ............ to N' if there exists an isometric isomorphism of N onto N'.

a)

homomorphism

b)

isometrically homomorphism

c)

isomorphism

d)

isometrically isomorphism

3.

A Banach space is a .................. space.

a)

complete

b)

quadratic

c)

linear

d)

compact

4.

The ........... theorem enables us to give a satisfactory description of the projections on a Banach space.

a)

Hahn Banach

b)

Open Mapping

c)

closed mapping

d)

Boundedness

5.

x\left|\left|x\right|\right| is a real function defined on N, this function is called the ................ of N.

a)

linear

b)

vector

c)

scalar

d)

norm

6.

The norm of a number x is defined by .....................

a)

x = x\left|x\right|

b)

x = x\left|\left|x\right|\right|

c)

x=x\left|\left|x\right|\right|=\left|x\right|

d)

x=x\left|\left|x\right|\right|=-\left|x\right|

7.

The norm f= sup f(x)\left|\left|f\right|\right|=\ \sup\ \left|f\left(x\right)\right| is sometimes called the ............

a)

standard norm

b)

norm

c)

uniform norm

d)

unit norm

8.

Let N be a non-zero normed linear space then N is a Banach space iff {x:x=1}\left\{x:\left|\left|x\right|\right|=1\right\} is ......................

a)

bounded

b)

continuous

c)

closed

d)

complete

9.

The elements of N* are called ............................

a)

continuous linear functionals

b)

elements of N

c)

vector values

d)

scalar values

10.

Which of the following is an example of a nls?

a)

W

b)

Z

c)

N

d)

C

11.

The weak topology on a nls N is a weakest topology on N with respect in which all the functions in N* are ...................

a)

connected

b)

continuous

c)

jointly continuous

d)

disconnected

12.

The weak* topology is the weak topology on N* generated y all the ..................Fx in N**

a)

induced functional

b)

functional

c)

functions

d)

continuous

13.

Say true or false: S* is compact in the weak topology iff N is finite dimensional.

a)

True

b)

False

14.

S* is compact in the strong topology iff N is reflexive.

a)

True

b)

False

15.

If B and B' are Banach spaces, and if T is a continuous linear transformation of B onto B'. Then T is an ...................... mapping.

a)

continuous

b)

closed

c)

open

d)

uniform

16.

A projection E on a linear space L is an idempotent linear transformation of L into ......................

a)

E

b)

L

c)

N

d)

B

17.

Say true or false: If B and B' are Banach spaces and if T is a L.T of B into B', then T is closed iff its graph is closed.

a)

True

b)

False

18.

A non -empty subset X of a nls N is ounded iff f(X) is a................... set of numbers for each f in N*.

a)

Closed

b)

open

c)

compact

d)

bounded

19.

S10S_{10} = ..............

a)

10+ S10S_{10}

b)

10 S10S_{10}

c)

10 S1S_1

d)

1 S10S_{10}

20.

S(13, 5) = ...............

a)

13+5 S1S_1

b)

5+ S13S_{13}

c)

13+ S13S_{13}

d)

13S513S_5

21.

Which among these is Prof. Von Neumann

a)

b)

A

c)

B

d)

C