Timeline for Can we categorify the equation (1 - t)(1 + t + t^2 + ...) = 1?
Current License: CC BY-SA 4.0
11 events
| when toggle format | what | by | license | comment | |
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| S Jan 24, 2021 at 11:11 | history | suggested | wilsonw | CC BY-SA 4.0 |
latexifying the formulas
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| Jan 24, 2021 at 6:25 | review | Suggested edits | |||
| S Jan 24, 2021 at 11:11 | |||||
| Aug 31, 2019 at 17:52 | review | Suggested edits | |||
| Aug 31, 2019 at 21:21 | |||||
| Feb 18, 2011 at 7:10 | history | edited | Gil Kalai |
edited tags
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| Oct 22, 2009 at 7:24 | answer | added | Andrew Stacey | timeline score: 7 | |
| Oct 21, 2009 at 22:08 | vote | accept | Sammy Black | ||
| Oct 20, 2009 at 21:06 | comment | added | Kim Morrison | @Qiaochu. The graded dimension of a graded vector space V=\oplus_i V_i is dim_t(V) = \sum_i t^i dim(V_i). The graded Euler characteristic of a complex of graded vector spaces is just the alternating sum of the graded dimensions of the terms of the complex. | |
| Oct 20, 2009 at 20:17 | answer | added | Simon Wadsley | timeline score: 13 | |
| Oct 20, 2009 at 20:11 | answer | added | Ben Webster♦ | timeline score: 22 | |
| Oct 20, 2009 at 19:15 | comment | added | Qiaochu Yuan | Could you clarify what you mean by the Euler characteristic of a complex of finite-dimensional graded vector spaces? I just need to make sure I know where t comes from. | |
| Oct 20, 2009 at 18:21 | history | asked | Sammy Black | CC BY-SA 2.5 |