American Mathematical Monthly Problems  2020
The American Mathematical Monthly is an expository journal intended for a wide audience of mathematicians, from undergraduate students to research professionals. Each issue has a Problems and Solutions section where several new problems are proposed.
Below you can find the solutions that I've submitted this year (pdfs will be available after the deadline).
As regards the previous years, you can take a look through the following links
(but beware of nerd sniping
):
2019 (41),
2018 (36),
2017 (40),
2016 (50),
2015 (48),
2014 (41),
2013 (29),
2012 (22),
2011 (22),
2010 (15),
2009 (13),
2008 (16),
2007 (15),
2006 (16),
2005 (22),
2004 (13),
2003 (13),
2002 (6),
20011993 (19).

Problem 12180  04  P.F. Refolio (Spain).


Problem 12179  04  N. MacKinnon (UK).


Problem 12178  04  S. Portnoy (USA).


Problem 12175  04  G. Fera (Italy).


Problem 12173  03  F. Stanescu (Romania).


Problem 12171  03  U. Abel and V. Kushnirevych (Germany).


Problem 12168  03  M. Lukarevski (North Macedonia).


Problem 12167  03  N. MacKinnon (UK).


Problem 12163  02  T. Speckhofer (Austria).


Problem 12162  02  Dao Thanh Oai (Vietnam) and L. Giugiuc (Romania).


Problem 12160  02  H. Ohtsuka (Japan) and R. Tauraso (Italy).


Problem 12158  01  H. Grandmontagne (France).


Problem 12156  01  H. Ohtsuka (Japan).


Problem 12154  01  M. Lukarevski (North Macedonia).


Problem 12153  01  O. Kouba (Syria).
