Jump to content
Main menu
Main menu
move to sidebar
hide
Navigation
Main page
Recent changes
Random page
Help about MediaWiki
Special pages
Niidae Wiki
Search
Search
Appearance
Create account
Log in
Personal tools
Create account
Log in
Pages for logged out editors
learn more
Contributions
Talk
Editing
Topological vector space
(section)
Page
Discussion
English
Read
Edit
View history
Tools
Tools
move to sidebar
hide
Actions
Read
Edit
View history
General
What links here
Related changes
Page information
Appearance
move to sidebar
hide
Warning:
You are not logged in. Your IP address will be publicly visible if you make any edits. If you
log in
or
create an account
, your edits will be attributed to your username, along with other benefits.
Anti-spam check. Do
not
fill this in!
===Properties preserved by set operators=== * The balanced hull of a compact (respectively, [[totally bounded]], open) set has that same property.{{sfn|Narici|Beckenstein|2011|pp=67-113}} * The [[Minkowski sum|(Minkowski) sum]] of two compact (respectively, bounded, balanced, convex) sets has that same property.{{sfn|Narici|Beckenstein|2011|pp=67-113}} But the sum of two closed sets need {{em|not}} be closed. * The convex hull of a balanced (resp. open) set is balanced (respectively, open). However, the convex hull of a closed set need {{em|not}} be closed.{{sfn|Narici|Beckenstein|2011|pp=67-113}} And the convex hull of a bounded set need {{em|not}} be bounded. The following table, the color of each cell indicates whether or not a given property of subsets of <math>X</math> (indicated by the column name, "convex" for instance) is preserved under the set operator (indicated by the row's name, "closure" for instance). If in every TVS, a property is preserved under the indicated set operator then that cell will be colored green; otherwise, it will be colored red. So for instance, since the union of two absorbing sets is again absorbing, the cell in row "<math>R \cup S</math>" and column "Absorbing" is colored green. But since the arbitrary intersection of absorbing sets need not be absorbing, the cell in row "Arbitrary intersections (of at least 1 set)" and column "Absorbing" is colored red. If a cell is not colored then that information has yet to be filled in. {| class="wikitable mw-collapsible mw-collapsed" |+ Properties preserved by set operators !rowspan="2"|Operation !colspan="100"|Property of <math>R,</math> <math>S,</math> and any other subsets of <math>X</math> that is considered |- ![[Absorbing set|Absorbing]] ![[Balanced set|Balanced]] ![[Convex set|Convex]] ![[Symmetric set|Symmetric]] !Convex<br />Balanced !Vector<br />subspace !Open !Neighborhood<br />of 0 !Closed !Closed<br />Balanced !Closed<br />Convex !Closed<br />Convex<br />Balanced ![[Barrelled set|Barrel]] !Closed<br />Vector<br />subspace ![[Totally bounded|Totally<br />bounded]] ![[Compact set|Compact]] !Compact<br />Convex ![[Relatively compact]] ![[Complete space|Complete]] ![[Sequentially complete space|Sequentially<br />Complete]] ![[Banach disk|Banach<br />disk]] ![[Bounded set (topological vector space)|Bounded]] ![[Bornivorous set|Bornivorous]] ![[Infrabornivorous]] ![[Nowhere dense set|Nowhere<br />dense]] (in <math>X</math>) ![[Meagre set|Meager]] ![[Separable space|Separable]] ![[Metrizable TVS|Pseudometrizable]] !Operation |- !style="text-align:left;"|<math>R \cup S</math> |{{ya}}<!--Absorbing--> |{{ya}}<!--Balanced--> |{{na}}<!--Convex--> |{{ya}}<!--Symmetric--> |{{na}}<!--Convex Balanced--> |{{na}}<!--Vector subspace--> |{{ya}}<!--Open--> |{{ya}}<!--Neighborhood of 0--> |{{ya}}<!--Closed--> |{{ya}}<!--Closed Balanced--> |{{na}}<!--Closed Convex--> |{{na}}<!--Closed Convex Balanced--> |style="background:;"|<!--Barrel--> |{{na}}<!--Closed Vector subspace--> |{{ya}}<!--Totally bounded--> |{{ya}}<!--Compact--> |{{na}}<!--Compact convex--> |{{ya}}<!--Relatively compact--> |style="background:;"|<!--Complete--> |{{ya}}<!--Sequentially complete--> |style="background:;"|<!--Banach disk--> |{{ya}}<!--Bounded--> |{{ya}}<!--Bornivorous--> |{{ya}}<!--Infrabornivorous--> |{{ya}}<!--Nowhere dense--> |{{ya}}<!--Meager--> |{{ya}}<!--Separable--> |{{ya}}<!--Pseudometrizable--> !style="text-align:left;"|<math>R \cup S</math> |- !style="text-align:left;"|{{nowrap|<math>\cup</math> of}} increasing nonempty [[Chain (order theory)|chain]] |{{ya}}<!--Absorbing--> |{{ya}}<!--Balanced--> |{{ya}}<!--Convex--> |{{ya}}<!--Symmetric--> |{{ya}}<!--Convex Balanced--> |{{ya}}<!--Vector subspace--> |{{ya}}<!--Open--> |{{ya}}<!--Neighborhood of 0--> |{{na}}<!--Closed--> |{{na}}<!--Closed Balanced--> |{{na}}<!--Closed Convex--> |{{na}}<!--Closed Convex Balanced--> |{{na}}<!--Barrel--> |{{na}}<!--Closed Vector subspace--> |{{na}}<!--Totally bounded--> |{{na}}<!--Compact--> |{{na}}<!--Compact convex--> |{{na}}<!--Relatively compact--> |{{na}}<!--Complete--> |{{na}}<!--Sequentially complete--> |style="background:;"|<!--Banach disk--> |{{na}}<!--Bounded--> |{{ya}}<!--Bornivorous--> |{{ya}}<!--Infrabornivorous--> |{{na}}<!--Nowhere dense--> |{{na}}<!--Meager--> |style="background:;"|<!--Separable--> |style="background:;"|<!--Pseudometrizable--> !style="text-align:left;"|{{nowrap|<math>\cup</math> of}} increasing nonempty [[Chain (order theory)|chain]] |- !style="text-align:left;"|Arbitrary unions (of at least 1 set) |{{ya}}<!--Absorbing--> |{{ya}}<!--Balanced--> |{{na}}<!--Convex--> |{{ya}}<!--Symmetric--> |{{na}}<!--Convex Balanced--> |{{na}}<!--Vector subspace--> |{{ya}}<!--Open--> |{{ya}}<!--Neighborhood of 0--> |{{na}}<!--Closed--> |{{na}}<!--Closed Balanced--> |{{na}}<!--Closed Convex--> |{{na}}<!--Closed Convex Balanced--> |{{na}}<!--Barrel--> |{{na}}<!--Closed Vector subspace--> |{{na}}<!--Totally bounded--> |{{na}}<!--Compact--> |{{na}}<!--Compact convex--> |{{na}}<!--Relatively compact--> |{{na}}<!--Complete--> |{{na}}<!--Sequentially complete--> |style="background:;"|<!--Banach disk--> |{{na}}<!--Bounded--> |{{ya}}<!--Bornivorous--> |{{ya}}<!--Infrabornivorous--> |{{na}}<!--Nowhere dense--> |{{na}}<!--Meager--> |style="background:;"|<!--Separable--> |style="background:;"|<!--Pseudometrizable--> !style="text-align:left;"|Arbitrary unions (of at least 1 set) |- !style="text-align:left;"|<math>R \cap S</math> |{{ya}}<!--Absorbing--> |{{ya}}<!--Balanced--> |{{ya}}<!--Convex--> |{{ya}}<!--Symmetric--> |{{ya}}<!--Convex Balanced--> |{{ya}}<!--Vector subspace--> |{{ya}}<!--Open--> |{{ya}}<!--Neighborhood of 0--> |{{ya}}<!--Closed--> |{{ya}}<!--Closed Balanced--> |{{ya}}<!--Closed Convex--> |{{ya}}<!--Closed Convex Balanced--> |{{ya}}<!--Barrel--> |{{ya}}<!--Closed Vector subspace--> |{{ya}}<!--Totally bounded--> |{{ya}}<!--Compact--> |{{ya}}<!--Compact convex--> |style="background:;"|<!--Relatively compact--> |style="background:;"|<!--Complete--> |{{ya}}<!--Sequentially complete--> |style="background:;"|<!--Banach disk--> |{{ya}}<!--Bounded--> |style="background:;"|<!--Bornivorous--> |style="background:;"|<!--Infrabornivorous--> |{{ya}}<!--Nowhere dense--> |{{ya}}<!--Meager--> |style="background:;"|<!--Separable--> |{{ya}}<!--Pseudometrizable--> !style="text-align:left;"|<math>R \cap S</math> |- !style="text-align:left;"|{{nowrap|<math>\cap</math> of}} decreasing nonempty [[Chain (order theory)|chain]] |{{na}}<!--Absorbing--> |{{ya}}<!--Balanced--> |{{ya}}<!--Convex--> |{{ya}}<!--Symmetric--> |{{ya}}<!--Convex Balanced--> |{{ya}}<!--Vector subspace--> |{{na}}<!--Open--> |{{na}}<!--Neighborhood of 0--> |{{ya}}<!--Closed--> |{{ya}}<!--Closed Balanced--> |{{ya}}<!--Closed Convex--> |{{ya}}<!--Closed Convex Balanced--> |{{na}}<!--Barrel--> |{{ya}}<!--Closed Vector subspace--> |{{ya}}<!--Totally bounded--> |style="background:;"|<!--Compact--> |style="background:;"|<!--Compact convex--> |style="background:;"|<!--Relatively compact--> |style="background:;"|<!--Complete--> |style="background:;"|<!--Sequentially complete--> |style="background:;"|<!--Banach disk--> |{{ya}}<!--Bounded--> |style="background:;"|<!--Bornivorous--> |style="background:;"|<!--Infrabornivorous--> |{{ya}}<!--Nowhere dense--> |style="background:;"|<!--Meager--> |style="background:;"|<!--Separable--> |{{ya}}<!--Pseudometrizable--> !style="text-align:left;"|{{nowrap|<math>\cap</math> of}} decreasing nonempty [[Chain (order theory)|chain]] |- !style="text-align:left;"|Arbitrary intersections (of at least 1 set) |{{na}}<!--Absorbing--> |{{ya}}<!--Balanced--> |{{ya}}<!--Convex--> |{{ya}}<!--Symmetric--> |{{ya}}<!--Convex Balanced--> |{{na}}<!--Open--> |{{ya}}<!--Vector subspace--> |{{na}}<!--Neighborhood of 0--> |{{ya}}<!--Closed--> |{{ya}}<!--Closed Balanced--> |{{ya}}<!--Closed Convex--> |{{ya}}<!--Closed Convex Balanced--> |{{na}}<!--Barrel--> |{{ya}}<!--Closed Vector subspace--> |{{ya}}<!--Totally bounded--> |style="background:;"|<!--Compact--> |style="background:;"|<!--Compact convex--> |style="background:;"|<!--Relatively compact--> |style="background:;"|<!--Complete--> |style="background:;"|<!--Sequentially complete--> |style="background:;"|<!--Banach disk--> |{{ya}}<!--Bounded--> |style="background:;"|<!--Bornivorous--> |style="background:;"|<!--Infrabornivorous--> |{{ya}}<!--Nowhere dense--> |style="background:;"|<!--Meager--> |style="background:;"|<!--Separable--> |{{ya}}<!--Pseudometrizable--> !style="text-align:left;"|Arbitrary intersections (of at least 1 set) |- !style="text-align:left;"|<math>R + S</math> |{{ya}}<!--Absorbing--> |{{ya}}<!--Balanced--> |{{ya}}<!--Convex--> |{{ya}}<!--Symmetric--> |{{ya}}<!--Convex Balanced--> |{{ya}}<!--Vector subspace--> |{{ya}}<!--Open--> |{{ya}}<!--Neighborhood of 0--> |{{na}}<!--Closed--> |style="background:;"|<!--Closed Balanced--> |{{na}}<!--Closed Convex--> |style="background:;"|<!--Closed Convex Balanced--> |style="background:;"|<!--Barrel--> |style="background:;"|<!--Closed Vector subspace--> |style="background:;"|<!--Totally bounded--> |{{ya}}<!--Compact--> |{{ya}}<!--Compact convex--> |style="background:;"|<!--Relatively compact--> |style="background:;"|<!--Complete--> |style="background:;"|<!--Sequentially complete--> |style="background:;"|<!--Banach disk--> |{{ya}}<!--Bounded--> |style="background:;"|<!--Bornivorous--> |style="background:;"|<!--Infrabornivorous--> |style="background:;"|<!--Nowhere dense--> |style="background:;"|<!--Meager--> |style="background:;"|<!--Separable--> |style="background:;"|<!--Pseudometrizable--> !style="text-align:left;"|<math>R + S</math> |- !style="text-align:left;"|Scalar multiple |{{na}}<!--Absorbing--> |{{ya}}<!--Balanced--> |{{ya}}<!--Convex--> |{{ya}}<!--Symmetric--> |{{ya}}<!--Convex Balanced--> |{{ya}}<!--Vector subspace--> |{{na}}<!--Open--> |{{na}}<!--Neighborhood of 0--> |{{na}}<!--Closed--> |{{na}}<!--Closed Balanced--> |{{na}}<!--Closed Convex--> |{{na}}<!--Closed Convex Balanced--> |{{na}}<!--Barrel--> |{{na}}<!--Closed Vector subspace--> |{{ya}}<!--Totally bounded--> |{{ya}}<!--Compact--> |{{ya}}<!--Compact convex--> |{{ya}}<!--Relatively compact--> |{{ya}}<!--Complete--> |{{ya}}<!--Sequentially complete--> |style="background:;"|<!--Banach disk--> |{{ya}}<!--Bounded--> |{{na}}<!--Bornivorous--> |{{na}}<!--Infrabornivorous--> |{{ya}}<!--Nowhere dense--> |{{ya}}<!--Meager--> |{{ya}}<!--Separable--> |{{ya}}<!--Pseudometrizable--> !style="text-align:left;"|Scalar multiple |- !style="text-align:left;"|Non-0 scalar multiple |{{ya}}<!--Absorbing--> |{{ya}}<!--Balanced--> |{{ya}}<!--Convex--> |{{ya}}<!--Symmetric--> |{{ya}}<!--Convex Balanced--> |{{ya}}<!--Vector subspace--> |{{ya}}<!--Open--> |{{ya}}<!--Neighborhood of 0--> |{{ya}}<!--Closed--> |{{ya}}<!--Closed Balanced--> |{{ya}}<!--Closed Convex--> |{{ya}}<!--Closed Convex Balanced--> |{{ya}}<!--Barrel--> |{{ya}}<!--Closed Vector subspace--> |{{ya}}<!--Totally bounded--> |{{ya}}<!--Compact--> |{{ya}}<!--Compact convex--> |{{ya}}<!--Relatively compact--> |{{ya}}<!--Complete--> |{{ya}}<!--Sequentially complete--> |{{ya}}<!--Banach disk--> |{{ya}}<!--Bounded--> |{{ya}}<!--Bornivorous--> |{{ya}}<!--Infrabornivorous--> |{{ya}}<!--Nowhere dense--> |{{ya}}<!--Meager--> |{{ya}}<!--Separable--> |{{ya}}<!--Pseudometrizable--> !style="text-align:left;"|Non-0 scalar multiple |- !style="text-align:left;"|Positive scalar multiple |{{ya}}<!--Absorbing--> |{{ya}}<!--Balanced--> |{{ya}}<!--Convex--> |{{ya}}<!--Symmetric--> |{{ya}}<!--Convex Balanced--> |{{ya}}<!--Vector subspace--> |{{ya}}<!--Open--> |{{ya}}<!--Neighborhood of 0--> |{{ya}}<!--Closed--> |{{ya}}<!--Closed Balanced--> |{{ya}}<!--Closed Convex--> |{{ya}}<!--Closed Convex Balanced--> |{{ya}}<!--Barrel--> |{{ya}}<!--Closed Vector subspace--> |{{ya}}<!--Totally bounded--> |{{ya}}<!--Compact--> |{{ya}}<!--Compact convex--> |style="background:;"|<!--Relatively compact--> |{{ya}}<!--Complete--> |{{ya}}<!--Sequentially complete--> |style="background:;"|<!--Banach disk--> |{{ya}}<!--Bounded--> |{{ya}}<!--Bornivorous--> |{{ya}}<!--Infrabornivorous--> |{{ya}}<!--Nowhere dense--> |{{ya}}<!--Meager--> |{{ya}}<!--Separable--> |{{ya}}<!--Pseudometrizable--> !style="text-align:left;"|Positive scalar multiple |- !style="text-align:left;"|[[Closure (topology)|Closure]] |{{ya}}<!--Absorbing--> |{{ya}}<!--Balanced--> |{{ya}}<!--Convex--> |{{ya}}<!--Symmetric--> |{{ya}}<!--Convex Balanced--> |{{ya}}<!--Vector subspace--> |{{na}}<!--Open--> |{{ya}}<!--Neighborhood of 0--> |{{ya}}<!--Closed--> |{{ya}}<!--Closed Balanced--> |{{ya}}<!--Closed Convex--> |{{ya}}<!--Closed Convex Balanced--> |{{ya}}<!--Barrel--> |{{ya}}<!--Closed Vector subspace--> |{{ya}}<!--Totally bounded--> |{{ya}}<!--Compact--> |{{ya}}<!--Compact convex--> |{{ya}}<!--Relatively compact--> |style="background:;"|<!--Complete--> |style="background:;"|<!--Sequentially complete--> |style="background:;"|<!--Banach disk--> |{{ya}}<!--Bounded--> |{{ya}}<!--Bornivorous--> |{{ya}}<!--Infrabornivorous--> |{{ya}}<!--Nowhere dense--> |style="background:;"|<!--Meager--> |style="background:;"|<!--Separable--> |style="background:;"|<!--Pseudometrizable--> !style="text-align:left;"|[[Closure (topology)|Closure]] |- !style="text-align:left;"|[[Interior (topology)|Interior]] |{{na}}<!--Absorbing--> |{{na}}<!--Balanced--> |{{ya}}<!--Convex--> |{{ya}}<!--Symmetric--> |style="background:;"|<!--Convex Balanced--> |{{na}}<!--Vector subspace--> |{{ya}}<!--Open--> |{{ya}}<!--Neighborhood of 0--> |{{na}}<!--Closed--> |{{na}}<!--Closed Balanced--> |{{na}}<!--Closed Convex--> |{{na}}<!--Closed Convex Balanced--> |{{na}}<!--Barrel--> |{{na}}<!--Closed Vector subspace--> |style="background:;"|<!--Totally bounded--> |{{na}}<!--Compact--> |{{na}}<!--Compact convex--> |style="background:;"|<!--Relatively compact--> |style="background:;"|<!--Complete--> |style="background:;"|<!--Sequentially complete--> |style="background:;"|<!--Banach disk--> |{{ya}}<!--Bounded--> |style="background:;"|<!--Bornivorous--> |style="background:;"|<!--Infrabornivorous--> |{{ya}}<!--Nowhere dense--> |{{na}}<!--Meager--> |style="background:;"|<!--Separable--> |style="background:;"|<!--Pseudometrizable--> !style="text-align:left;"|[[Interior (topology)|Interior]] |- !style="text-align:left;"|[[Balanced core]] |{{ya}}<!--Absorbing--> |{{ya}}<!--Balanced--> |{{ya}}<!--Convex--> |{{ya}}<!--Symmetric--> |{{ya}}<!--Convex Balanced--> |{{ya}}<!--Vector subspace--> |{{ya}}<!--Open--> |{{ya}}<!--Neighborhood of 0--> |{{ya}}<!--Closed--> |{{ya}}<!--Closed Balanced--> |{{ya}}<!--Closed Convex--> |{{ya}}<!--Closed Convex Balanced--> |{{ya}}<!--Barrel--> |{{ya}}<!--Closed Vector subspace--> |{{ya}}<!--Totally bounded--> |style="background:;"|<!--Compact--> |style="background:;"|<!--Compact convex--> |style="background:;"|<!--Relatively compact--> |style="background:;"|<!--Complete--> |style="background:;"|<!--Sequentially complete--> |style="background:;"|<!--Banach disk--> |{{ya}}<!--Bounded--> |style="background:;"|<!--Bornivorous--> |style="background:;"|<!--Infrabornivorous--> |{{ya}}<!--Nowhere dense--> |{{ya}}<!--Meager--> |style="background:;"|<!--Separable--> |style="background:;"|<!--Pseudometrizable--> !style="text-align:left;"|[[Balanced core]] |- !style="text-align:left;"|[[Balanced hull]] |{{ya}}<!--Absorbing--> |{{ya}}<!--Balanced--> |{{na}}<!--Convex--> |{{ya}}<!--Symmetric--> |{{ya}}<!--Convex Balanced--> |{{ya}}<!--Vector subspace--> |{{ya}}<!--Open--> |{{ya}}<!--Neighborhood of 0--> |{{na}}<!--Closed--> |{{ya}}<!--Closed Balanced--> |style="background:;"|<!--Closed Convex--> |{{ya}}<!--Closed Convex Balanced--> |{{ya}}<!--Barrel--> |{{ya}}<!--Closed Vector subspace--> |{{ya}}<!--Totally bounded--> |{{ya}}<!--Compact--> |{{na}}<!--Compact convex--> |style="background:;"|<!--Relatively compact--> |style="background:;"|<!--Complete--> |style="background:;"|<!--Sequentially complete--> |{{ya}}<!--Banach disk--> |{{ya}}<!--Bounded--> |{{ya}}<!--Bornivorous--> |{{ya}}<!--Infrabornivorous--> |{{na}}<!--Nowhere dense--> |{{na}}<!--Meager--> |style="background:;"|<!--Separable--> |style="background:;"|<!--Pseudometrizable--> !style="text-align:left;"|[[Balanced hull]] |- !style="text-align:left;"|[[Convex hull]] |{{ya}}<!--Absorbing--> |{{ya}}<!--Balanced--> |{{ya}}<!--Convex--> |{{ya}}<!--Symmetric--> |{{ya}}<!--Convex Balanced--> |{{ya}}<!--Vector subspace--> |{{ya}}<!--Open--> |{{ya}}<!--Neighborhood of 0--> |{{na}}<!--Closed--> |style="background:;"|<!--Closed Balanced--> |{{ya}}<!--Closed Convex--> |{{ya}}<!--Closed Convex Balanced--> |{{ya}}<!--Barrel--> |{{ya}}<!--Closed Vector subspace--> |style="background:;"|<!--Totally bounded--> |style="background:;"|<!--Compact--> |{{ya}}<!--Compact convex--> |style="background:;"|<!--Relatively compact--> |style="background:;"|<!--Complete--> |style="background:;"|<!--Sequentially complete--> |{{ya}}<!--Banach disk--> |{{na}}<!--Bounded--> |{{ya}}<!--Bornivorous--> |{{ya}}<!--Infrabornivorous--> |{{na}}<!--Nowhere dense--> |{{na}}<!--Meager--> |style="background:;"|<!--Separable--> |style="background:;"|<!--Pseudometrizable--> !style="text-align:left;"|[[Convex hull]] |- !style="text-align:left;"|[[Convex balanced hull]] |{{ya}}<!--Absorbing--> |{{ya}}<!--Balanced--> |{{ya}}<!--Convex--> |{{ya}}<!--Symmetric--> |{{ya}}<!--Convex Balanced--> |{{ya}}<!--Vector subspace--> |{{ya}}<!--Open--> |{{ya}}<!--Neighborhood of 0--> |{{ya}}<!--Closed--> |{{ya}}<!--Closed Balanced--> |style="background:;"|<!--Closed Convex--> |{{ya}}<!--Closed Convex Balanced--> |{{ya}}<!--Barrel--> |{{ya}}<!--Closed Vector subspace--> |style="background:;"|<!--Totally bounded--> |style="background:;"|<!--Compact--> |style="background:;"|<!--Compact convex--> |style="background:;"|<!--Relatively compact--> |style="background:;"|<!--Complete--> |style="background:;"|<!--Sequentially complete--> |{{ya}}<!--Banach disk--> |{{na}}<!--Bounded--> |{{ya}}<!--Bornivorous--> |{{ya}}<!--Infrabornivorous--> |{{na}}<!--Nowhere dense--> |{{na}}<!--Meager--> |style="background:;"|<!--Separable--> |style="background:;"|<!--Pseudometrizable--> !style="text-align:left;"|[[Convex balanced hull]] |- !style="text-align:left;"|Closed balanced hull |{{ya}}<!--Absorbing--> |{{ya}}<!--Balanced--> |{{na}}<!--Convex--> |{{ya}}<!--Symmetric--> |{{ya}}<!--Convex Balanced--> |{{ya}}<!--Vector subspace--> |{{na}}<!--Open--> |{{ya}}<!--Neighborhood of 0--> |{{ya}}<!--Closed--> |{{ya}}<!--Closed Balanced--> |{{ya}}<!--Closed Convex--> |{{ya}}<!--Closed Convex Balanced--> |{{ya}}<!--Barrel--> |{{ya}}<!--Closed Vector subspace--> |style="background:;"|<!--Totally bounded--> |style="background:;"|<!--Compact--> |style="background:;"|<!--Compact convex--> |style="background:;"|<!--Relatively compact--> |style="background:;"|<!--Complete--> |style="background:;"|<!--Sequentially complete--> |style="background:;"|<!--Banach disk--> |{{ya}}<!--Bounded--> |{{ya}}<!--Bornivorous--> |{{ya}}<!--Infrabornivorous--> |{{na}}<!--Nowhere dense--> |{{na}}<!--Meager--> |style="background:;"|<!--Separable--> |style="background:;"|<!--Pseudometrizable--> !style="text-align:left;"|Closed balanced hull |- !style="text-align:left;"|Closed convex hull |{{ya}}<!--Absorbing--> |{{ya}}<!--Balanced--> |{{ya}}<!--Convex--> |{{ya}}<!--Symmetric--> |{{ya}}<!--Convex Balanced--> |{{ya}}<!--Vector subspace--> |{{na}}<!--Open--> |{{ya}}<!--Neighborhood of 0--> |{{ya}}<!--Closed--> |{{ya}}<!--Closed Balanced--> |{{ya}}<!--Closed Convex--> |{{ya}}<!--Closed Convex Balanced--> |{{ya}}<!--Barrel--> |{{ya}}<!--Closed Vector subspace--> |style="background:;"|<!--Totally bounded--> |style="background:;"|<!--Compact--> |style="background:;"|<!--Compact convex--> |style="background:;"|<!--Relatively compact--> |style="background:;"|<!--Complete--> |style="background:;"|<!--Sequentially complete--> |style="background:;"|<!--Banach disk--> |{{na}}<!--Bounded--> |{{ya}}<!--Bornivorous--> |{{ya}}<!--Infrabornivorous--> |{{na}}<!--Nowhere dense--> |{{na}}<!--Meager--> |style="background:;"|<!--Separable--> |style="background:;"|<!--Pseudometrizable--> !style="text-align:left;"|Closed convex hull |- !style="text-align:left;"|Closed convex balanced hull |{{ya}}<!--Absorbing--> |{{ya}}<!--Balanced--> |{{ya}}<!--Convex--> |{{ya}}<!--Symmetric--> |{{ya}}<!--Convex Balanced--> |{{ya}}<!--Vector subspace--> |{{na}}<!--Open--> |{{ya}}<!--Neighborhood of 0--> |{{ya}}<!--Closed--> |{{ya}}<!--Closed Balanced--> |{{ya}}<!--Closed Convex--> |{{ya}}<!--Closed Convex Balanced--> |{{ya}}<!--Barrel--> |{{ya}}<!--Closed Vector subspace--> |style="background:;"|<!--Totally bounded--> |style="background:;"|<!--Compact--> |style="background:;"|<!--Compact convex--> |style="background:;"|<!--Relatively compact--> |style="background:;"|<!--Complete--> |style="background:;"|<!--Sequentially complete--> |style="background:;"|<!--Banach disk--> |{{na}}<!--Bounded--> |{{ya}}<!--Bornivorous--> |{{ya}}<!--Infrabornivorous--> |{{na}}<!--Nowhere dense--> |{{na}}<!--Meager--> |style="background:;"|<!--Separable--> |style="background:;"|<!--Pseudometrizable--> !style="text-align:left;"|Closed convex balanced hull |- !style="text-align:left;"|[[Linear span]] |{{ya}}<!--Absorbing--> |{{ya}}<!--Balanced--> |{{ya}}<!--Convex--> |{{ya}}<!--Symmetric--> |{{ya}}<!--Convex Balanced--> |{{ya}}<!--Vector subspace--> |{{ya}}<!--Open--> |{{ya}}<!--Neighborhood of 0--> |style="background:;"|<!--Closed--> |style="background:;"|<!--Closed Balanced--> |style="background:;"|<!--Closed Convex--> |style="background:;"|<!--Closed Convex Balanced--> |{{ya}}<!--Barrel--> |{{ya}}<!--Closed Vector subspace--> |{{na}}<!--Totally bounded--> |{{na}}<!--Compact--> |{{na}}<!--Compact convex--> |{{na}}<!--Relatively compact--> |style="background:;"|<!--Complete--> |style="background:;"|<!--Sequentially complete--> |{{ya}}<!--Banach disk--> |{{na}}<!--Bounded--> |{{ya}}<!--Bornivorous--> |{{ya}}<!--Infrabornivorous--> |{{na}}<!--Nowhere dense--> |{{na}}<!--Meager--> |style="background:;"|<!--Separable--> |style="background:;"|<!--Pseudometrizable--> !style="text-align:left;"|[[Linear span]] |- !style="text-align:left;"|Pre-image under a continuous linear map |{{ya}}<!--Absorbing--> |{{ya}}<!--Balanced--> |{{ya}}<!--Convex--> |{{ya}}<!--Symmetric--> |{{ya}}<!--Convex Balanced--> |{{ya}}<!--Vector subspace--> |{{ya}}<!--Open--> |{{ya}}<!--Neighborhood of 0--> |{{ya}}<!--Closed--> |{{ya}}<!--Closed Balanced--> |{{ya}}<!--Closed Convex--> |{{ya}}<!--Closed Convex Balanced--> |{{ya}}<!--Barrel--> |{{ya}}<!--Closed Vector subspace--> |{{na}}<!--Totally bounded--> |{{na}}<!--Compact--> |{{na}}<!--Compact convex--> |{{na}}<!--Relatively compact--> |style="background:;"|<!--Complete--> |style="background:;"|<!--Sequentially complete--> |style="background:;"|<!--Banach disk--> |{{na}}<!--Bounded--> |style="background:;"|<!--Bornivorous--> |style="background:;"|<!--Infrabornivorous--> |style="background:;"|<!--Nowhere dense--> |style="background:;"|<!--Meager--> |{{na}}<!--Separable--> |{{na}}<!--Pseudometrizable--> !style="text-align:left;"|Pre-image under a continuous linear map |- !style="text-align:left;"|Image under a continuous linear map |{{na}}<!--Absorbing--> |{{ya}}<!--Balanced--> |{{ya}}<!--Convex--> |{{ya}}<!--Symmetric--> |{{ya}}<!--Convex Balanced--> |{{ya}}<!--Vector subspace--> |{{na}}<!--Open--> |{{na}}<!--Neighborhood of 0--> |{{na}}<!--Closed--> |{{na}}<!--Closed Balanced--> |{{na}}<!--Closed Convex--> |{{na}}<!--Closed Convex Balanced--> |{{na}}<!--Barrel--> |{{na}}<!--Closed Vector subspace--> |{{ya}}<!--Totally bounded--> |{{ya}}<!--Compact--> |{{ya}}<!--Compact convex--> |style="background:;"|<!--Relatively compact--> |style="background:;"|<!--Complete--> |style="background:;"|<!--Sequentially complete--> |style="background:;"|<!--Banach disk--> |{{ya}}<!--Bounded--> |style="background:;"|<!--Bornivorous--> |style="background:;"|<!--Infrabornivorous--> |{{na}}<!--Nowhere dense--> |style="background:;"|<!--Meager--> |{{ya}}<!--Separable--> |style="background:;"|<!--Pseudometrizable--> !style="text-align:left;"|Image under a continuous linear map |- !style="text-align:left;"|Image under a continuous linear surjection |{{ya}}<!--Absorbing--> |{{ya}}<!--Balanced--> |{{ya}}<!--Convex--> |{{ya}}<!--Symmetric--> |{{ya}}<!--Convex Balanced--> |{{ya}}<!--Vector subspace--> |style="background:;"|<!--Open--> |style="background:;"|<!--Neighborhood of 0--> |style="background:;"|<!--Closed--> |style="background:;"|<!--Closed Balanced--> |style="background:;"|<!--Closed Convex--> |style="background:;"|<!--Closed Convex Balanced--> |style="background:;"|<!--Barrel--> |style="background:;"|<!--Closed Vector subspace--> |{{ya}}<!--Totally bounded--> |{{ya}}<!--Compact--> |{{ya}}<!--Compact convex--> |style="background:;"|<!--Relatively compact--> |style="background:;"|<!--Complete--> |style="background:;"|<!--Sequentially complete--> |style="background:;"|<!--Banach disk--> |{{ya}}<!--Bounded--> |style="background:;"|<!--Bornivorous--> |style="background:;"|<!--Infrabornivorous--> |{{na}}<!--Nowhere dense--> |style="background:;"|<!--Meager--> |{{ya}}<!--Separable--> |style="background:;"|<!--Pseudometrizable--> !style="text-align:left;"|Image under a continuous linear surjection |- !style="text-align:left;"|Non-empty subset of <math>R</math> |{{na}}<!--Absorbing--> |{{na}}<!--Balanced--> |{{na}}<!--Convex--> |{{na}}<!--Symmetric--> |{{na}}<!--Convex Balanced--> |{{na}}<!--Vector subspace--> |{{na}}<!--Open--> |{{na}}<!--Neighborhood of 0--> |{{na}}<!--Closed--> |{{na}}<!--Closed Balanced--> |{{na}}<!--Closed Convex--> |{{na}}<!--Closed Convex Balanced--> |{{na}}<!--Barrel--> |{{na}}<!--Closed Vector subspace--> |{{ya}}<!--Totally bounded--> |{{na}}<!--Compact--> |{{na}}<!--Compact convex--> |style="background:;"|<!--Relatively compact--> |{{na}}<!--Complete--> |{{na}}<!--Sequentially complete--> |style="background:;"|<!--Banach disk--> |{{ya}}<!--Bounded--> |{{na}}<!--Bornivorous--> |{{na}}<!--Infrabornivorous--> |{{ya}}<!--Nowhere dense--> |{{ya}}<!--Meager--> |style="background:;"|<!--Separable--> |{{ya}}<!--Pseudometrizable--> !style="text-align:left;"|Non-empty subset of <math>R</math> |- !Operation ![[Absorbing set|Absorbing]] ![[Balanced set|Balanced]] ![[Convex set|Convex]] ![[Symmetric set|Symmetric]] !Convex<br />Balanced !Vector<br />subspace !Open !Neighborhood<br />of 0 !Closed !Closed<br />Balanced !Closed<br />Convex !Closed<br />Convex<br />Balanced ![[Barrelled set|Barrel]] !Closed<br />Vector<br />subspace ![[Totally bounded|Totally<br />bounded]] ![[Compact set|Compact]] !Compact<br />Convex ![[Relatively compact]] ![[Complete space|Complete]] ![[Sequentially complete space|Sequentially<br />Complete]] ![[Banach disk|Banach<br />disk]] ![[Bounded set (topological vector space)|Bounded]] ![[Bornivorous set|Bornivorous]] ![[Infrabornivorous]] ![[Nowhere dense set|Nowhere<br />dense]] (in <math>X</math>) ![[Meagre set|Meager]] ![[Separable space|Separable]] ![[Metrizable TVS|Pseudometrizable]] !Operation |}
Summary:
Please note that all contributions to Niidae Wiki may be edited, altered, or removed by other contributors. If you do not want your writing to be edited mercilessly, then do not submit it here.
You are also promising us that you wrote this yourself, or copied it from a public domain or similar free resource (see
Encyclopedia:Copyrights
for details).
Do not submit copyrighted work without permission!
Cancel
Editing help
(opens in new window)
Search
Search
Editing
Topological vector space
(section)
Add topic