University COVID-19 update

The University of Waterloo is constantly updating our most Frequently Asked Questions.

Questions about buildings and services? Visit the list of Modified Services.

Please note: The University of Waterloo is closed for all events until further notice.

Pure Math ColloquiumExport this event to calendar

Monday, March 29, 2021 — 4:00 PM EDT

Linda Westrick, Pennsylvania State University

"Luzin's (N) and randomness reflection"

A function f:R->R has Luzin's property (N) if f(A) has Lebesgue measure 0 for every set A of Lebesgue measure 0.  We give a new characterization of this old property in terms of higher algorithmic randomness.  A computable f has Luzin's (N) if and only if it satisfies the following pointwise condition: for all reals x, if f(x) is Pi^1_1-random, then so is x.  Here an individual real x is called Pi^1_1-random if it is not contained in any computably describable co-analytic set of measure 0.  Joint work with Arno PAULY and YU Liang.

Zoom meeting: https://zoom.us/j/93240216981?pwd=aE0vbktRV1NvMTFzbFVaalVpb1pCdz09

Event tags 

S M T W T F S
28
29
30
31
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
1
  1. 2021 (34)
    1. April (4)
    2. March (11)
    3. February (9)
    4. January (10)
  2. 2020 (103)
    1. December (10)
    2. November (12)
    3. October (4)
    4. September (3)
    5. August (1)
    6. July (5)
    7. June (1)
    8. May (3)
    9. March (16)
    10. February (26)
    11. January (22)
  3. 2019 (199)
  4. 2018 (212)
  5. 2017 (281)
  6. 2016 (335)
  7. 2015 (211)
  8. 2014 (235)
  9. 2013 (251)
  10. 2012 (135)