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Total questions: 21
Worksheet time: 11mins
If N' is a Banach space then B(N, N') is a
normed linear space
not a Banach space
Banach space
Linear space
N is said to be ............ to N' if there exists an isometric isomorphism of N onto N'.
homomorphism
isometrically homomorphism
isomorphism
isometrically isomorphism
A Banach space is a .................. space.
complete
quadratic
linear
compact
The ........... theorem enables us to give a satisfactory description of the projections on a Banach space.
Hahn Banach
Open Mapping
closed mapping
Boundedness
∣∣x∣∣ is a real function defined on N, this function is called the ................ of N.
linear
vector
scalar
norm
The norm of a number x is defined by .....................
x = ∣x∣
x = ∣∣x∣∣
∣∣x∣∣=∣x∣
∣∣x∣∣=−∣x∣
The norm ∣∣f∣∣= sup ∣f(x)∣ is sometimes called the ............
standard norm
norm
uniform norm
unit norm
Let N be a non-zero normed linear space then N is a Banach space iff {x:∣∣x∣∣=1} is ......................
bounded
continuous
closed
complete
The elements of N* are called ............................
continuous linear functionals
elements of N
vector values
scalar values
Which of the following is an example of a nls?
W
Z
N
C
The weak topology on a nls N is a weakest topology on N with respect in which all the functions in N* are ...................
connected
continuous
jointly continuous
disconnected
The weak* topology is the weak topology on N* generated y all the ..................Fx in N**
induced functional
functional
functions
continuous
Say true or false: S* is compact in the weak topology iff N is finite dimensional.
True
False
S* is compact in the strong topology iff N is reflexive.
True
False
If B and B' are Banach spaces, and if T is a continuous linear transformation of B onto B'. Then T is an ...................... mapping.
continuous
closed
open
uniform
A projection E on a linear space L is an idempotent linear transformation of L into ......................
E
L
N
B
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.
True
False
A non -empty subset X of a nls N is ounded iff f(X) is a................... set of numbers for each f in N*.
Closed
open
compact
bounded
S10 = ..............
10+ S10
10 S10
10 S1
1 S10
S(13, 5) = ...............
13+5 S1
5+ S13
13+ S13
13S5
Which among these is Prof. Von Neumann
A
B
C
