I am currently an Assistant Professor (tenure-track) in the Department of Mathematics at the University of Hawaii. Previously, I was an Acting Assistant Professor in the Department of Mathematics at the University of Washington, working with Don Marshall. Before that, I spent two years as a NSERC Postdoctoral Fellow at the Department of Mathematics of Stony Brook University, working with Chris Bishop. I did my Ph.D. at Université Laval and my thesis advisor was Thomas Ransford.
My main interests are in complex analysis, more precisely geometric function theory. This includes subjects such as removability, extremal problems in spaces of analytic functions (mainly analytic capacity), conformal and quasiconformal mappings, conformal welding, etc. I am also interested in holomorphic dynamics, numerical methods in complex analysis, Schramm-Loewner Evolution and potential theory.
My research is supported by NSF Analysis Grant DMS-1758295 (formerly DMS-1664807).
I organize the Grad/Postdoc Professional Development Seminar at the University of Hawaii.
Email : email@example.com
Office : Physical Science Building (PSB) 321
University of Hawaii :
MATH 241 (Calculus I) in Fall 2018.
MATH 631 (Theory of Functions of a Real Variable) in Fall 2018.
University of Washington :
MATH 444 (Complex Analysis) in Spring 2018.
MATH 307 K (Introduction to Differential Equations) in Spring 2017.
MATH 307 J,K (Introduction to Differential Equations) in Winter 2017.
MATH 307 P (Introduction to Differential Equations) in Autumn 2016.
MAT 627 (Topics in Complex Analysis: Loewner Theory, with an introduction to SLE) in Spring 2016.
MAT 200 (Logic, Language and Proof) in Fall 2015.
MAT 550 (Real Analysis II) in Spring 2015.
D. Ntalampekos, M. Younsi,
Rigidity theorems for circle domains, submitted.
S. Pouliasis, T. Ransford and M. Younsi,
Analytic Capacity and Holomorphic Motions, submitted.
Peano curves in Complex Analysis, submitted.
T. Richards, M. Younsi,
Computing polynomial conformal models for low-degree Blaschke products, submitted.
Analytic Capacity : computation and related problems, to appear in the NEAM Conference Proceedings, 31 pages.
On the analytic and Cauchy capacities, J. Anal. Math. 135 (2018), no. 1, 185–202.
Removability and non-injectivity of conformal welding, Ann. Acad. Sci. Fenn. Math., 43 (2018), 463-473.
K. Lindsey, M. Younsi,
Fekete polynomials and shapes of Julia sets, to appear in Trans. Amer. Math. Soc. , 23 pages.
Removability, rigidity of circle domains and Koebe's Conjecture, Adv. Math. 303 (2016), 1300-1318.
T. Richards, M. Younsi,
Conformal models and fingerprints of pseudo-lemniscates, Constr. Approx. 45 (2017), no. 1, 129-141.
Shapes, fingerprints and rational lemniscates, Proc. Amer. Math. Soc. 144 (2016), 1087-1093.
On removable sets for holomorphic functions, EMS Surv. Math. Sci. 2 (2015), no. 2, 219-254.
M. Fortier Bourque, M. Younsi,
Rational Ahlfors functions, Constr. Approx. 41 (2015), no. 1, 157-183.
M. Younsi, T. Ransford,
Computation of analytic capacity and applications to the subadditivity problem, Comput. Methods. Funct. Theory 13 (2013), no. 3, 337-382.
Here are some pictures from the paper Fekete polynomials and shapes of Julia sets.
Below is the filled Julia set of a polynomial of degree 351 approximating the shapes of a heart, a fish and a diamond.
Here, a zoomed portion of the boundary of the fish where one can see small distorted copies of the heart and the diamond.
Below is the filled Julia set of a polynomial of degree 701 approximating the shape of a rabbit.
Below is the filled Julia set of a polynomial of degree 701 approximating the shape of Batman.
Finally, below is the filled Julia set of a polynomial of degree 2001 approximating the initials K,L,M,Y.