Add Adam as collaborator

index.md

@@ -17,9 +17,9 @@ The spectral properties of infinite-dimensional operators often provide visual a
 **Software implementations** exploiting fast linear algebra are available at [https://github.com/SpecSolve](https://github.com/SpecSolve).
 
 ## External collaborators
-[Alex Watson](https://www-users.cse.umn.edu/~watso860/) (University of Minnesota), Kyle Thicke (Technical University of Munich), [Yuji Nakatsukasa](https://people.maths.ox.ac.uk/nakatsukasa/) (University of Oxford), [Marcus Webb](https://personalpages.manchester.ac.uk/staff/marcus.webb/default.htm) (University of Manchester), [Matthew Colbrook](http://www.damtp.cam.ac.uk/user/mjc249/home.html) (University of Cambridge), and [Rhonda Morgan](https://www.linkedin.com/in/rhonda-morgan-9971514) (NASA Jet Propulsion Laboratory).
+[Adam Gerlach](https://scholar.google.com/citations?user=5Sct5YwAAAAJ&hl=en) (AFRL), [Alex Watson](https://www-users.cse.umn.edu/~watso860/) (University of Minnesota), Kyle Thicke (Technical University of Munich), [Yuji Nakatsukasa](https://people.maths.ox.ac.uk/nakatsukasa/) (University of Oxford), [Marcus Webb](https://personalpages.manchester.ac.uk/staff/marcus.webb/default.htm) (University of Manchester), [Matthew Colbrook](http://www.damtp.cam.ac.uk/user/mjc249/home.html) (University of Cambridge), and [Rhonda Morgan](https://www.linkedin.com/in/rhonda-morgan-9971514) (NASA Jet Propulsion Laboratory).
 
-## Publications
+## Papers
 1. J. Zvonek, A. Horning, and A. Townsend, "[ContHutch++: Stochastic trace estimation for implicit integral operators.](https://arxiv.org/abs/2311.07035)" Submitted 2023.
 2. M.J. Colbrook, A. Horning, K. Thicke, and A.B. Watson, "[Computing spectral properties of topological insulators without artificial truncation or supercell approximation.](https://doi.org/10.1093/imamat/hxad002)" IMA Journal of Applied Mathematics 88.1 (2023): 1-42.
 3. A. Horning and Y. Nakatsukasa, "[Twice is enough for dangerous eigenvalues.](https://doi.org/10.1137/20M1385330)" SIAM Journal on Matrix Analysis and Applications 43.1 (2022): 68-93.