Talk:Convex function: Revision history

24 March 2025

• curprev 11:2311:23, 24 March 2025 Huntbobo talk contribs 32,816 bytes +340 →I think the left hand side is the curve of the function and not a straight line as stated in the text below.: new section undo Tag: New topic

21 March 2024

• curprev 19:0519:05, 21 March 2024 Fantasticawesome talk contribs 32,476 bytes +500 →Unclear reference to drawing/image: new section undo Tag: New topic

9 March 2024

• curprev 00:0300:03, 9 March 2024 Cewbot talk contribs m 31,976 bytes −17 Maintain {{WPBS}}: 1 WikiProject template. Remove 1 deprecated parameter: field. undo Tag: Talk banner shell conversion

29 January 2024

• curprev 22:5022:50, 29 January 2024 Qwerfjkl (bot) talk contribs 31,993 bytes +41 Implementing WP:PIQA (Task 26) undo Tag: Talk banner shell conversion

20 November 2023

• curprev 01:3101:31, 20 November 2023 Jacobolus talk contribs 31,952 bytes −3 promote to 'high' priority in math wikiproject undo

8 July 2023

• curprev 17:4417:44, 8 July 2023 60.250.123.226 talk 31,955 bytes +148 →Needs link to operator convexity undo
• curprev 17:4217:42, 8 July 2023 60.250.123.226 talk 31,807 bytes +505 →Needs link to operator convexity: new section undo Tag: New topic

20 May 2022

• curprev 04:4004:40, 20 May 2022 MalnadachBot talk contribs m 31,302 bytes 0 Fixed Lint errors. (Task 12) undo Tag: AWB

10 March 2022

• curprev 17:3217:32, 10 March 2022 MalnadachBot talk contribs m 31,302 bytes 0 Fixed Lint errors. (Task 12) undo Tag: AWB

17 October 2020

• curprev 15:1215:12, 17 October 2020 92.209.35.171 talk 31,302 bytes +421 →Counterexamples undo

25 September 2020

• curprev 04:2104:21, 25 September 2020 AVM2019 talk contribs 30,881 bytes +151 →History/Origin undo
• curprev 04:0404:04, 25 September 2020 AVM2019 talk contribs 30,730 bytes +9 to do list undo

24 August 2020

• curprev 21:1821:18, 24 August 2020 Christian Brech talk contribs 30,721 bytes +642 →Convex down & Convex up: new section undo

21 April 2020

• curprev 18:5018:50, 21 April 2020 1234qwer1234qwer4 talk contribs 30,079 bytes +498 Notification: listing of Strictly convex at redirects for discussion. (TW) undo

18 January 2019

• curprev 06:2106:21, 18 January 2019 McKay talk contribs 29,581 bytes +309 →Obscure leading sentence: new section undo

8 October 2018

• curprev 13:2913:29, 8 October 2018 120.17.118.20 talk 29,272 bytes +286 →History/Origin: new section undo

30 July 2017

• curprev 09:0409:04, 30 July 2017 92.219.6.7 talk 28,986 bytes +289 →Correct Definition undo

21 August 2014

• curprev 14:4514:45, 21 August 2014 Arthur Rubin talk contribs 28,697 bytes +129 →spaces between words: where? undo

17 August 2014

• curprev 15:0615:06, 17 August 2014 46.19.85.89 talk 28,568 bytes +269 →spaces between words: new section undo

13 August 2014

• curprev 20:2320:23, 13 August 2014 Erikjm talk contribs 28,299 bytes +79 →Strongly convex undo
• curprev 20:2120:21, 13 August 2014 Erikjm talk contribs 28,220 bytes +516 →Strongly convex undo

25 March 2014

• curprev 12:1512:15, 25 March 2014 Bryanrutherford0 talk contribs 27,704 bytes −23 Reassessing as C-class quality undo

22 February 2014

• curprev 07:5507:55, 22 February 2014 Arthur Rubin talk contribs 27,727 bytes +700 →some questions about the section regarding the properties of convex function: comments undo

17 February 2014

• curprev 09:3109:31, 17 February 2014 SineBot talk contribs m 27,027 bytes +203 Dating comment by 132.66.85.52 - "→some questions about the section regarding the properties of convex function: " undo
• curprev 09:3009:30, 17 February 2014 132.66.85.52 talk 26,824 bytes +89 →some questions about the section regarding the properties of convex function undo

11 February 2014

• curprev 10:2710:27, 11 February 2014 46.19.85.157 talk 26,735 bytes +600 →some questions about the section regarding the properties of convex function: new section undo

26 February 2013

• curprev 14:3614:36, 26 February 2013 Duoduoduo talk contribs 26,135 bytes +29 moving latest edit to bottom and giving it a title undo

29 January 2013

• curprev 18:0518:05, 29 January 2013 Osmankhalid2005 talk contribs 26,106 bytes +283 No edit summary undo

2 November 2012

• curprev 18:1518:15, 2 November 2012 67.186.29.135 talk 25,823 bytes +384 →Strongly convex undo

30 August 2012

• curprev 09:2609:26, 30 August 2012 Alokdube talk contribs 25,439 bytes −2 →The example with f(x)=x4 undo
• curprev 09:2509:25, 30 August 2012 Alokdube talk contribs 25,441 bytes +31 →The example with f(x)=x4 undo
• curprev 09:2409:24, 30 August 2012 Alokdube talk contribs 25,410 bytes +284 →The example with f(x)=x4 undo
• curprev 08:0908:09, 30 August 2012 Alokdube talk contribs 25,126 bytes 0 →The example with f(x)=x4 undo
• curprev 08:0808:08, 30 August 2012 Alokdube talk contribs 25,126 bytes +109 →The example with f(x)=x4 undo

25 April 2011

• curprev 18:5718:57, 25 April 2011 Kiefer.Wolfowitz talk contribs 25,017 bytes +721 →Proper: Please follow the terms of Rockafellar and Wets or the latest book by Borwein and Vanderwerff: There is no need for OR proposing to reformulate the basic terms of an established subdiscipline. undo
• curprev 18:4718:47, 25 April 2011 Kiefer.Wolfowitz talk contribs 24,296 bytes +427 →Explanation of revert: avoid using "concave up" and "concave down"---which used to be traditional in calculus books in the USA, alas, and only a small improvement over "bathtub shaped" or "U-shaped". undo
• curprev 18:4518:45, 25 April 2011 Kiefer.Wolfowitz talk contribs 23,869 bytes +362 →Explanation of revert: Thanks!I agree that a discussion of subdifferentiability and zero subgradients should be in the body, not in the lead. undo

24 April 2011

• curprev 22:3422:34, 24 April 2011 Slawekb talk contribs 23,507 bytes +356 →Explanation of revert undo
• curprev 22:2922:29, 24 April 2011 Slawekb talk contribs m 23,151 bytes +1 →Explanation of revert undo
• curprev 22:2822:28, 24 April 2011 Slawekb talk contribs 23,150 bytes +1,220 →Explanation of revert: moved from my talk and expanded reply undo
• curprev 22:2122:21, 24 April 2011 Slawekb talk contribs 21,930 bytes +254 →Explanation of revert: Epigraph remains in the first paragraph of the lead. undo
• curprev 22:1522:15, 24 April 2011 Slawekb talk contribs 21,676 bytes +855 →Explanation of revert: new section undo

12 March 2011

• curprev 01:0901:09, 12 March 2011 Arthur Rubin talk contribs 20,821 bytes +774 →Proper: comments on use of −∞ undo

11 March 2011

• curprev 18:3418:34, 11 March 2011 Duzian talk contribs 20,047 bytes +1,758 →Proper undo
• curprev 17:3217:32, 11 March 2011 Arthur Rubin talk contribs 18,289 bytes +149 →Proper: introduce "proper" as a subset of "extended" undo
• curprev 17:3017:30, 11 March 2011 Arthur Rubin talk contribs 18,140 bytes −3 →Proper: format properly undo
• curprev 17:2817:28, 11 March 2011 Arthur Rubin talk contribs 18,143 bytes +1,443 →Proper: continuing undo
• curprev 16:4716:47, 11 March 2011 Duzian talk contribs 16,700 bytes +584 →Proper undo
• curprev 15:4415:44, 11 March 2011 Arthur Rubin talk contribs 16,116 bytes +597 →Proper: new section undo

7 February 2011

• curprev 20:4720:47, 7 February 2011 Kiefer.Wolfowitz talk contribs 15,519 bytes +631 →necessary conditions on 2nd derivative for strict convexity: Rademacher's theorem, which is prove in Evan's book on fine properties of real functions and probably in Francis Clarke's (SIAM-reprinted) book on nonsmooth analysis. Jeff Cheeger g undo