Depending on the amount of free time that I have, I occasionally like to work on math problems posed in journals such as American Mathematical Monthly, The College Mathematics Journal, The Fibonacci Quarterly, and Mathematics Magazine. Here are my contributions that were deemed fit to print.
Published solutions
Problem 5613: Solution 5, School Science and Mathematics, 120 (2021).
Problem 1109: Bounds on the rank of a sum of matrices, The College Mathematics Journal, 49 (2018), 298--300.
Problem B-1209: A bijective argument on a tribonacci sum, The Fibonacci Quarterly, 56 (2018), 182--183.
Problem 11544: Squares from totients, American Mathematical Monthly, 119 (2012), 807.
Problem 1869: A triangle inequality for triangle side-lengths, Mathematics Magazine, 85 (2012), 155.
Unpublished but credited solutions
Problem B-1263: Pairing Up Fibonacci and Lucas with Pell and Pell-Lucas, The Fibonacci Quarterly, 59 (2021), acknowledgment on page 86 of the February 2021 issue.
Problem B-1262: Stirling Approximation for Double Factorials, The Fibonacci Quarterly, 59 (2021), acknowledgment on page 84 of the February 2021 issue.
Problem 5457, School Science and Mathematics, 118 (2018), acknowledgment in the January 2018 problem column.
Problem 486, Mathematical Excalibur, 20 (2016), acknowledgment on page 3 of the August 2016-September 2016 issue.
Problem 5359, School Science and Mathematics, 115 (2015), acknowledgment in the December 2015 problem column.
Problem 5358, School Science and Mathematics, 115 (2015), acknowledgment in the December 2015 problem column.
Problem 1956: Weighting the harmonic sequence, Mathematics Magazine, 88 (2015), acknowledgment on page 61.
Problem 11658: An uncountable linearly independent set of binary sequences, American Mathematical Monthly, 121 (2014), acknowledgment on page 740.
Problem 990: A limit with the number of perfect squares, College Mathematics Journal, 44 (2013), acknowledgment on page 445.
Problem 11559: A rational recurrence, American Mathematical Monthly, 120 (2013), acknowledgment on page 79.
Problem 11558: A rectangle with vertices on prescribed circles, American Mathematical Monthly, 120 (2013), acknowledgment on page 78.
Problem 11553: Largest odd divisors, American Mathematical Monthly, 119 (2012), acknowledgment on page 887.
Problem 11549: A triple functional equation, American Mathematical Montly, 119 (2012), acknowledgment on page 614.
Problem 11548: Derivative Cauchy-Schwarz, American Mathematical Monthly, 119 (2012), acknowledgment on page 612.
Problem 11545: A Stirling sum, American Mathematical Monthly, 119 (2012), acknowledgment on page 886.
Problem 955: Another constrained inequality, College Mathematics Journal, 43 (2012), acknowledgment on page 264.
Problem 954: Detecting two fake coins, College Mathematics Journal, 43 (2012), acknowledgment on page 262.
Problem 953: A recursively defined series, College Mathematics Journal, 43 (2012), acknowledgment on page 262.
Problem 951: Mean value theorem for integral, College Mathematics Journal, 43 (2012), acknowledgment on page 259.
Problem 1870: A double zeta sum, Mathematics Magazine, 85 (2012), acknowledgment on page 156.
Problem 1867: A Mean Value Theorem for n values, Mathematics Magazine, 85 (2012), acknowledgment on page 153.