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visits member for 3 years
seen Jun 16 '13 at 10:11

Jun
25
awarded  Tumbleweed
Jun
25
awarded  Citizen Patrol
Jun
25
awarded  Promoter
May
30
comment A question on semi-stratifiable space
@Joel: maybe I should mentioned it.
May
29
revised A question on semi-stratifiable space
added 144 characters in body
May
29
comment A question on semi-stratifiable space
$g: \mathbb N \times X \to \tau_X$ is a $g$-function of $X$ if for any $x$ and $n \in \mathbb N$, $x \in g(n+1,x) \subset g(n,x)$.
May
29
asked A question on semi-stratifiable space
May
4
comment A conjecture on closed discrete subset
what is meaning of non-measurable cardinality?
May
4
comment A question on continuous mappings
Buzyakova posted a new definition of absolutely submetrizable (= every Tychonoff subtopology is submetrizable) in the paper: On absolutely submetrizable spaces
May
4
asked A conjecture on closed discrete subset
May
4
asked A question on continuous mappings
May
1
asked A question on star $\sigma$-compact spaces
Apr
26
comment Is $f$ continuous?
Yes. He may be very old.
Apr
26
comment Is $f$ continuous?
The author said unclearly in the paper.
Apr
26
revised Is $f$ continuous?
added 33 characters in body; added 8 characters in body; added 12 characters in body; edited body; edited body
Apr
26
asked Is $f$ continuous?
Mar
29
awarded  Teacher
Mar
29
revised What is the smallest cardinality a topology can have which is c.c.c but not separable (in ZFC)?
added 9 characters in body; deleted 11 characters in body; added 36 characters in body; deleted 6 characters in body
Mar
29
answered What is the smallest cardinality a topology can have which is c.c.c but not separable (in ZFC)?
Mar
18
comment A question on countably compact space
@Ali: could you give me a link of the book, so I can download it?