Irene Fonseca
Professor Carnegie Mellon University
- Pittsburgh PA
Irene Fonseca's research focus is on training in applied mathematics at the broad interface between the physical sciences and engineering.
Biography
Areas of Expertise
Media Appearances
SIAM: Irene Fonseca president of the Society for Industrial and Applied Mathematics – Pittsburgh,PA
Portuguese American Journal online
2011-11-28
Mathematician Irene Fonseca, 55, was elected president of the Society for Industrial and Applied Mathematics (SIAM) the world’s largest and most prestigious scientific society dedicated to applied mathematics.
NSF Builds More Partnerships for International Research and Education
National Science Foundation online
2011-02-16
Science at the Triple Point Between Mathematics, Mechanics and Materials Science (Carnegie Mellon University) PIRE funding will enable PI Irene Fonseca and an international network of mathematicians from the United States, Belgium, United Kingdom, Germany and Italy to collaborate at the interface of mathematics and materials science and to develop sophisticated new methods for understanding the complexities of advanced materials. Graduate courses will be developed and U.S. students will strengthen their interdisciplinary and global research skills by conducting international research with multiple mentors and/or by participating in an international industrial research internship. Such international curriculum and student mobility will help internationalize U.S. institutions and place them in a vibrant international network of applied mathematicians.
Media
Social
Industry Expertise
Accomplishments
Senior Prize
International Society for the Interaction of Mechanics and Mathematics
Education
University of Minnesota
M.S.
1983
University of Minnesota
Ph.D.
1985
University of Lisbon
Licenciatura
Mathematics
1980
Affiliations
- European Academy of Sciences : Fellow
- American Mathematical Society : Fellow
- SIAM : Fellow
- American Association for the Advancement of Science (AAAS)
- Association for Women in Mathematics (AWM)
Links
Articles
Higher order Ambrosio–Tortorelli scheme with non-negative spatially dependent parameters
Advances in Calculus of Variations2023
The Ambrosio–Tortorelli approximation scheme with weighted underlying metric is investigated. It is shown that it Γ-converges to a Mumford–Shah image segmentation functional depending on the weight ωdx, where ω is a special function of bounded variation, and on its values at the jumps.
Global and local energy minimizers for a nanowire growth model
AIHPC2023
We consider a model for vapor–liquid–solid growth of nanowires proposed in the physical literature. Liquid drops are described as local or global volume-constrained minimizers of the capillarity energy outside a semi-infinite convex obstacle modeling the nanowire. We first address the existence of global minimizers and then, in the case of rotationally symmetric nanowires, we investigate how the presence of a sharp edge affects the shape of local minimizers and the validity of Young’s law.
The mathematics of thin structures
Quarterly of Applied Mathematics2022
This article offers various mathematical contributions to the behavior of thin films. The common thread is to view thin film behavior as the variational limit of a three-dimensional domain with a related behavior when the thickness of that domain vanishes. After a short review in Section 1 of the various regimes that can arise when such an asymptotic process is performed in the classical elastic case, giving rise to various well-known models in plate theory (membrane, bending, Von Karmann, etc…), the other sections address various extensions of those initial results.
Domain Formation in Membranes Near the Onset of Instability
Journal of Nonlinear Science2016
The formation of microdomains, also called rafts, in biomembranes can be attributed to the surface tension of the membrane. In order to model this phenomenon, a model involving a coupling between the local composition and the local curvature was proposed by Seul and Andelman in 1995. In addition to the familiar Cahn–Hilliard/Modica–Mortola energy, there are additional ‘forces’ that prevent large domains of homogeneous concentration.
On the Motion of Curved Dislocations in Three Dimensions: Simplified Linearized Elasticity
SIAM Journal on Mathematical Analysis2021
It is shown that in core-radius cutoff regularized simplified elasticity (where the elastic energy depends quadratically on the full displacement gradient rather than its symmetrized version), the force on a dislocation curve by the negative gradient of the elastic energy asymptotically approaches the mean curvature of the curve as the cutoff radius converges to zero.
