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0
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2
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331
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subspace topology and strong topology
Suppose $X$ is a locally convex space and $Y$ is a subspace of the strong dual of $X$, is the induced topology on Y equivalent to the strong topology $b(Y,Y')$ on $Y$? … If this is not correct, then on what spaces does the strong topology coincide with the initial topology? …
2
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0
answers
587
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Valuation topology vs modified valuation topology
with this topology is a Hausdorff topological field, and if $K$ is an ordered field then the order topology coincides with the valuation topology. … topology. …
26
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15
answers
19k
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Learning Topology
EDIT (Harry): Since this question in its original form was poorly stated (asked about topology rather than graph theory), but we have a list of Topology books in the answers, I guess you should go ahead … EDIT (David): The original question was asking for places to learn topology with an eye towards applying it to computer science (artificial neural networks in particular) …
1
vote
1
answer
959
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Strong topology
A dual of $E^{\star}$ given by the $\beta(E^{\star\star}, E^{\star})$ topology is usually denoted by $E^{\star\star}$ and it is called a double dual of $E$. … Fact 1
It is well-known that if $E$ is an (F)-space then the (initial) (F)-space topology coincides with strong topology $\beta(E, E^{\star})$. …
0
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1
answer
125
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Product topology and order convergence topology
We define the order convergence topology, denoted by $\tau_o(P)$. … It is not hard to verify that this defines a topology. …
4
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0
answers
175
views
Is the test function topology a Mackey topology?
For a general topological vector space $X$ with chosen dual space $X',$ the "Mackey topology" is the strongest topology for which the continuous dual is $X'$. … My question is: is the canonical LF topology on $\mathcal{C}^{\infty}_{c}(\mathbb{R}^d)$ equal to the Mackey topology induced by the space of distributions? …
1
vote
1
answer
253
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Interval topology and order convergence topology
Now we define the order convergence topology, denoted by $\tau_o(P)$. … It is not hard to verify that this defines a topology.
Question: Given any poset $(P,\leq)$, does $\tau_i(P)\subseteq \tau_o(P)$ hold? …
2
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0
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123
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Pro-G_p*G_q topology, profinite topology
The pro-$W$ topology on a group $G$ is the unique group topology such that the set of normal subgroups $N$ with $G/N$ in $W$ is a fundamental system of neighborhoods of the identity. …
2
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0
answers
79
views
Associated barrelled topology of norm topology on $C_c(X)$
convex topology is barrelled) and similarly $\eta^{ub}$ as the associated ultrabornological topology. … a Banach space topology. …
0
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0
answers
132
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Mackey topology
Recall that for a Hausdorff locally convex space $X$ the Mackey topology $\tau (X^*,X)$ is the topology in its topological dual $X^*$ of uniform convergence on all weakly compact absolutely convex subsets …
6
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1
answer
350
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Equivalence of $\sigma$-weak topology to another topology
Define a topology $\tau_1$ on $B(\mathcal H)$ by the family of seminorms $x\mapsto |Tr(xa)|,$ $a\in L^1(B(\mathcal H)).$ Here $B(\mathcal H)$ denotes the set of all bounded linear maps on $\mathcal H$ … Again define the $\sigma$-WOT topology $\tau_2$ on $B(\mathcal H)$ by pulling back the weak operator topology of $B(\mathcal H\otimes\ell_2)$ to $B(\mathcal H)$ via the map $x\mapsto x\otimes 1.$ How to …
0
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2
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282
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Distinguishable under manifold topology but indistinguishable under the Alexandrov topology
In such case it is shown that the Alexandrov topology and the Manifolds topology deviate such that the manifold topology is strictly finer than the Alexandrov topology. … My question is that:
The necessary and sufficient conditions under which two points that are distinguishable under the Manifold topology, are indistinguishable under the Alexandrov topology for a generic …
17
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2
answers
2k
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Foundations of topology
I recently went to a talk of Oleg Viro where he expressed his dissatisfaction with current foundations of differential topology parallel to what has been discussed here. … Like the
language of topoi (and unlike 'tame topology'), it is a kind of
topology 'without points' - a direct approach to 'shape'. ...
appropriate for dealing with finite spaces... …
37
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5
answers
5k
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Locales and Topology.
As someone more used to point-set topology, who is unfamiliar with the inner workings of lattice theory, I am looking to learn about the localic interpretation of topology, of which I only have a limited … What are some recent results in point-free topology that are unique to the subject, i.e., not translations of results from general topology into localic language? …
3
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1
answer
557
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Path Metric Topology
Is there an example of a metric space $(X,d)$ whose corresponding path metric, $d^\prime$ generates a strictly finer topology compared to the topology generated by $d$? …