Timeline for Cohomologically minimal spaces
Current License: CC BY-SA 3.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 23, 2014 at 4:04 | vote | accept | Ali Taghavi | ||
| Feb 7, 2014 at 9:57 | comment | added | Gabriel C. Drummond-Cole | One can use similar arguments to show the similar but incomparable statement that if $X\backslash \{a\}$ into $X$ and $Y\backslash \{b\}$ into $Y$ do not induce isomorphisms and $a$ and $b$ each has a contractible neighborhood, then the inclusion of $X\times Y\backslash (a,b)$ into $X\times Y$ cannot induce an isomorphism. | |
| Feb 2, 2014 at 13:32 | comment | added | Gabriel C. Drummond-Cole | Let $X$ be two closed (non-zero-dimensional) manifolds connected by an interval. Then $X$ has $CM$ but not $CM'$ | |
| Feb 1, 2014 at 10:26 | comment | added | Ali Taghavi | Thank you. Yes. It was my typos. Obviously figure 8 is a CM space. A question:Can the homology or cohomology version of Kunneth formula be applied for space which are not necessarily a CW complex? | |
| Feb 1, 2014 at 8:44 | history | answered | Neil Strickland | CC BY-SA 3.0 |