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C λ , A = n = 0 α n λ n where α n A n

with the following constraints on A :

a 0 = 0 , a k = 1 - λ , a i + 1 - a i > λ for 0 i k - 1 .

As in the case of the mid- α Cantor sets C λ , homogeneous Cantor sets exhibit self-similarity in the following sense:

C λ , A = j = 0 k λ · C λ , A + a j .

An example of this self-similarity can be seen in [link] .

The first, second, and third stages in the construction of a homogeneous Cantor set with λ = 0 . 2 and A = 0 , 0 . 3 , 0 . 8 .

Cantorvals

Another relevant topological structure is the Cantorval . In loose terms, one could consider Cantorvals as "Cantor sets that contain intervals." To be more precise about this definition, we need to first define a gap of a set to be a bounded connected component of the complement. For example, in the Cantor ternary set T , the interval 1 3 , 2 3 is the largest gap of T .

Now we can formally define a Cantorval. We say that a compact, perfect set C R is an M -Cantorval if every gap of C is accumulated on each side by other gaps and intervals of C . An example of an M -Cantorval is given by Anisca and Chlebovec in [link] ; see [link] .

Similarly, we say that C is an L -Cantorval (or an R -Cantorval ) if every gap of C is accumulated on the left (or right) by gaps and intervals of C , and if each gap of C has an interval adjacent to its right (or left). See [link] .

An M -Cantorval constructed in a manner similar to the construction of the Cantor ternary set T , except one only removes intervals at the odd stages; no intervals get removed at even stages.
An example of an L -Cantorval. Note (or, given the limited resolution, imagine) that every gap has an interval on its right and is accumulated on the left by points, intervals, and gaps.

Sums of mid- α Cantor sets

The problem tackled in this study revolves around characterizing the topological properties of the sum of two mid- α Cantor sets C λ and C γ , given by

C λ + C γ = x + y x C λ , y C γ

in terms of λ and γ .

It is known that this sum can be an interval, as in the case of C 1 3 + C 1 3 = 0 , 2 . However, such a sum can result in another Cantor set, as with C 1 5 + C 1 5 . The proofs of these facts are in "Known Results" .

When studying this sum, it is more convenient to characterize it in terms of λ and λ θ = γ with θ 1 as opposed to simply just λ and γ . This is due to a result from [link] discussed below.

Hausdorff dimension

A useful way of characterizing these types of sum sets in terms of Hausdorff dimension . To define Hausdorff dimension, as done in [link] , we need first to define the Hausdorff α -measure . (Note that the α here is different from the α used to define the mid- α Cantor sets.)

Given a set K R and a finite covering U = U i i I of K by open intervals, we define i to be the length of U i , and then diam U to be the maximum of the i . Then, the Hausdorff α -measure m α K of K is

m α K = lim ε 0 inf U covers K diam U < ε i I i α .

Then, there is a unique number H D K such that for α < H D K , m α K = , and for α > H D K , m α K = 0 . We call this number the Hausdorff dimension of K .

From this definition, it is clear that any set with Hausdorff dimension less than 1 must have zero Lebesgue measure. Note that it is possible to have a Cantor set that has both Hausdorff dimension equal to 1 and Lebesgue measure zero. There is also another class of Cantor sets that have Hausdorff dimension 1 and positive Lebesgue measure.

Questions & Answers

what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
research.net
kanaga
sciencedirect big data base
Ernesto
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
Daniel
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
Maciej
characteristics of micro business
Abigail
for teaching engĺish at school how nano technology help us
Anassong
How can I make nanorobot?
Lily
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
NANO
how can I make nanorobot?
Lily
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
s.
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
Tarell
what is the actual application of fullerenes nowadays?
Damian
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
Tarell
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, The art of the pfug. OpenStax CNX. Jun 05, 2013 Download for free at http://cnx.org/content/col10523/1.34
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