### Bon-Soon Lin Graduate Student UCLA Mathematics Department bonsoon@math.ucla[dot edu] Office: MS 3973 --- **Research and Interests:** * Enumerative and bijective combinatorics; generating functions. * Planar structures; triangulations. * Combinatorial methods in algebra, geometry, analysis, and number theory. **Office Hours:** WEEK 4: Thusday at 3pm, no Friday. Other weeks: Monday at 3pm, Tuesday at 3pm, and Friday at 11am. **Currently Teaching:** Math 180 Graph Theory for Prof. D. Yeliussizov. (Spring 2018) * [Math 180 CCLE page](https://ccle.ucla.edu/course/view/18S-MATH180-1) * [Discussion section logs](./files/180-spring-2018.html). **Past Teaching:** * Math 184 Enumerative Combinatorics for Prof. I. Pak. (Winter 2018) * Math 135 Ordinary Differential Equations for Prof. O. Ben Neria. (Fall 2017) * Math 33A Linear Algebra for Prof. N. Bhaskhar. (Summer 2017) * Math 115A Linear Algebra for Prof. O. Ben Neria. (Spring 2017) * [Examples Sheet](./files/115A-spring2017.pdf). * Math 33A Linear Algebra for Prof. J. Chanussot. (Winter 2017) * [Course log](./files/33A-winter-2017.html) * Math 115A Linear Algebra for Prof. A. Manion. (Fall 2016) * [Examples Sheet](./files/math115a-examples-sheet.pdf). * Math 33A Linear Algebra for Prof. O. Ben Neria. (Spring 2016) * [MT1 Solution](./files/33A-mt1-solution-spring-2016.pdf). [Review Practice MT2 Examples Sheet](./files/33A-mt2-review-practice-spring-2016.pdf) and [some answers to the ones we didn't go over.](./files/33A-mt2-review-practice-spring-2016-ans.pdf) [Review Sheet for Final](./files/33A-final-review-sheet-spring-2016.pdf) and [some answers to the ones we didn't go over.](./files/33A-final-review-sheet-spring-2016-ans.pdf) * Math 3B Calculus for Prof. P. Greene. (Winter 2016) * Math 33A Linear Algebra for Prof. O. Ben Neria.(Winter 2016) * [A review sheet](./files/33A-review-sheet-winter-2016.pdf). [A topics list](./files/33A-list-of-topics-winter-2016.txt). * Math 3A Calculus for Prof. P. Greene. (Fall 2015) * Math 33A Linear Algebra for Prof. D. Penneys. (Fall 2015) * Math 33A Linear Algebra for Prof. D. Weisbart. (Spring 2015) * Math 33A Linear Algebra for Prof. T. Brown. (Winter 2015) * Math 1 Pre-Calculus for Prof. T. Sinclair. (Fall 2014) **Talks:** * May 2018 Map coloring theorems, and graphs on higher genus surfaces. * February 2018 Equiareal triangulations, and Monsky's theorem. * November 2017 Points on a plane -- Combinatorial geometry of planar point sets. * May 2017 Enumeration of unlabeled structures with symmetry. * March 2017 Enumeration of labeled trees. * June 2016 Chromatic symmetric functions. ![City over water. -B](./city-over-water-600.jpg)