Research engineer, Institut des Sciences du Calcul et des Données (ISCD), Sorbonne Université (formerly Université Pierre et Marie Curie, UPMC), Paris, France.
Contact
Office: 207, second floor, corridor 33-34;
Phone: +33 1 44 27 51 02;
Email: 
;
Curriculum Vitae: in English, in French.
Institut des Sciences du Calcul et des Données (ISCD), Sorbonne Université (formerly Université Pierre et Marie Curie, UPMC),
4 place de Jussieu, boîte courrier 380, 75252 Paris Cedex 5, France.
Fields of research
- 1D to 3D modeling related to interdisciplinary issues:
- Computational quantum chemistry (maximal probability domains);
- Inverse problems (conductivity in a copper converter);
- Resolution of equations coming from fluid dynamics (gas behaviours in an industrial network, simulation of surfing waves, equation of Korteweg-de Vries);
- Taking into account random uncertainties (numerical solution of the Robin Laplacian for domains having a thin layer of different conductivity and random thickness.
- Development and design of computer softwares written in C language:
- Architecture and software engineering;
- Efficiency and code performances;
- Parallel computing calculations;
- Exception handling;
- Unit test implementation;
- Software documentation (user guide).
- Simulation and analysis by numerical methods (strong skills in MATLAB/FREEFEM/C):
- Adaptive mesh techniques;
- Evolution of surfaces (level-set and phase-field methods);
- Setting up of numerical methods for optimization (gradient, hessian, (quasi-)Newton, adjoint, shape derivatives);
- Scientific calculus for the numerical computation of equations.
- Shape optimization, optimal design, and calculus of variations:
- Study and analysis of optimal shapes (existence, uniqueness, regularity, properties);
- Geometric functionals, curvature depending energies (Canham-Helfrich, Willmore);
- Maximal probability domains in quantum chemistry.
- Study and analysis of partial differential equations (PDEs):
- PDEs in moving geometrical domains (shape derivative, minimizing movement, dynamical control by the shape);
- Stability of solutions to non-linear equations by geometrical perturbations of the domain;
- Relaxation of PDEs in non-regular domains;
- Γ-convergence techniques;
- Inverse problems (approach by Carleman estimates).
- Geometry of points, curves, and surfaces:
- Differential geometry;
- Geometry of convex bodies (rearrangement techniques, Brunn-Minkowski theory);
- Geometric inequalities;
- Geometric measure theory (varifolds, currents);
- Conformal geometry (Willmore).
Position held
- 2017-: Research engineer at the Institut des Sciences du Calcul et des Données (ISCD), Sorbonne Université (SU), Paris, France.
- 2016-2017: Postdoctoral researcher at the Centro de Modelamiento Matemático (CMM), Facultad de Ciencas Físicas y Matemáticas (FCFM), Universidad de Chile (UC), Santiago, Chile.
- 2015-2016: Postdoctorate funded by the CALSIMLAB labex at the Institut du Calcul et de la Simulation (ICS), Université Pierre et Marie Curie (UPMC), Paris, France.
- 2011-2014: Teaching assistant at the Ecole Nationale Supérieure d'Electricité et de Mécanique (ENSEM), Université de Lorraine (UL), Nancy, France.
- 2011-2014: Research Doctorate at the Institut Elie Cartan de Lorraine (IECL), Université de Lorraine (UL), Nancy, France.
- March-August 2010: Internship at the Basque Center for Applied Mathematics (BCAM), Bilbao, Spain.
- September 2009-February 2010: Assignment for the company GDF SUEZ at the Innovation and Research Division (CRIGEN), Saint Denis la Plaine, France.
- February-March 2008: Internship at Billon SAS, Villejuif, France.
Education
- 2011-2014: Research Doctorate in Applied Mathematics.
- PhD thesis (in English), poster of my thesis (in French), and slides of the defense (in French).
- Academic title: Doctor of Philosophy in Applied Mathematics.
- Date of the defense: 2014 December 5th.
- Location: Institut Elie Cartan de Lorraine (IECL), Université de Lorraine (UL), Nancy, France.
- Thesis directors: Antoine Henrot and Takéo Takahashi.
- Thesis examiners: Grégoire Allaire and Giovanni Bellettini.
- Jury members of the defense: Annie Raoult, Simon Masnou, Dorin Bucur, Grégoire Allaire, Giovanni Bellettini, Antoine Henrot, and Takéo Takahashi.
- Reports of the defense and of the manuscript.
- 2007-2011: Graduated student of a French engineering School.
- Location: Ecole Nationale Supérieure des Mines de Nancy (ENSMN), Université de Lorraine (UL), Nancy, France.
- Specialty: mathematical engineering.
- Gap year (2009-2010):
- Six-month assignment for the company GDF SUEZ at the Innovation and Research Division (CRIGEN), Saint Denis la Plaine, France;
- Six-month internship at the Basque Center for Applied Mathematics (BCAM), Bilbao, Spain.
- 2008-2011: 1st and 2nd year of Master's degree in fundamental and applied mathematics.
- Location: Université Henri Poincaré (UHP), Nancy, France.
- Specialty: partial differential equations.
- 2002-2007: Scientific Baccalaureate and Preparatory Classes(MPSI, MP*).
- Location: lycée Louis le Grand, Paris, France.
- European class, specialty mathematics.
Publications
- PhD Thesis
- Computer softwares
- MPD Program, Jérémy Dalphin, développement et conception d'un logiciel de calcul de domaines de probabilité maximale (MPD comme Maximal Probability Domains en anglais) en chimie quantique computationnelle, janvier 2018.
- Modified version of mmg3d, Jeremy Dalphin, development of a new version of mmg3d that allows mesh adaptation according to both a metric and a level-set function, may 2017.
- Articles
- Uniform ball condition and existence of optimal shapes for geometric functionals involving boundary-value problems, Jeremy Dalphin, submitted (preprint), january 2018.
- Optimal shape of an underwater moving bottom generating surface waves ruled by a forced KdV equation, Jeremy Dalphin and Ricardo Barros, submitted (preprint), january 2018.
- Uniform ball property and existence of optimal shapes for a wide class of geometric functionals, Jeremy Dalphin, accepted in Interfaces and Free Boundaries (preprint), december 2017.
- Shape derivatives of the probability to find a fixed number of electrons chemically characterized by a wave function, Jeremy Dalphin, to be completed for a future submission (preprint), january 2017.
- On the minimization of total mean curvature, Jeremy Dalphin, Antoine Henrot, Simon Masnou, and Takeo Takahashi, Journal of Geometric Analysis (preprint), volume 26(4), pages 2729-2750, october 2016.
- Proceedings
- Some characterizations of a uniform ball property, Jeremy Dalphin, ESAIM: Proceedings and Surveys, volume 45, pages 437-446, september 2014.
- Dealing with CCGT: an explicit dynamic model, GDF SUEZ Innovation and Research Division: Baptiste Rossi, Jeremy Dalphin, Laure Sinegre, and Arthur Jacquiau; GRTgaz: Thierry Renaudie, Pipeline Simulation Interest Group (PSIG) Annual Meeting, California, conference paper 1120, may 2011.
- Reports
- Reconstruction de couches géologiques à partir de données discrètes (in French), Aurore Back, Jeremy Dalphin, Mohamed El Bouajaji, Jonathan Jung, Pierre-William Martelli, Mario Quillas Saavedra et Brahim Yahiaoui, Cinquième Semaine d'Etude Mathématiques-Entreprises (SEME5, Nancy, 2013) , HAL-01021660, july 2014.
- Report of Master's degree, september 2011.
- Internship report of the BCAM, september 2010.
- Technical report of GDF SUEZ (in French), march 2010.
- Work in progress
- About maximal probability domains:
- Existence for domains maximizing the probability to find a number of electrons, Jeremy Dalphin, Charles Dapogny, and Yannick Privat;
- A new algorithm for maximal probability domains, Benoît Braïda, Eric Cancès, Jeremy Dalphin, Pascal Frey, and Andreas Savin;
- Maximal probability domains for Hartree-Fock wave functions, Benoit Braida, Eric Cances, Jeremy Dalphin, Pascal Frey, and Andreas Savin;
- Maximal probability domains for multi-determinant wave functions, Benoit Braida, Eric Cances, Jeremy Dalphin, Pascal Frey, and Andreas Savin.
- About inverse problems:
- Simulations of some inverse problems in a copper converter, Matias Courdurier, Jeremy Dalphin, and Axel Osses;
- Numerics for the Robin Laplacian on a thin layer of random thickness, Jeremy Dalphin and Marc Dambrine.
- About the Canham-Helfrich energy:
- On the minimization of the Canham-Helfrich energy, Jeremy Dalphin;
- Numerics for the Helfrich functional, Elie Bretin, Jeremy Dalphin, and Simon Masnou;
- On the existence of minimizers for the Canham-Helfrich energy with small spontaneous curvature, Jeremy Dalphin and Andrea Mondino.
Research activities
- Participation to conferences as an invited speaker
- Discussions on Maximal Probability Domains, 2015 October 13th-15th, Department of Inorganic and Physical Chemistry (DIPC), University of Ghent, Genth, Belgium.
- Presentation of my ongoing work (3x1h30): simulation of maximal probability domains (shape derivatives, optimization algorithm, the case of multi-determinant wave functions).
- Discussion Meeting on Maximal Probability Domains, 2015 May 4th-6th, Institut Henri Poincaré (IHP), Paris, France.
- Handwritten notes (in French): presentation of my ongoing work about computing maximal probability domains with adaptive meshes.
- Young French Applied Mathematicians Meeting, 2015 March 30th-April 1st, Saint-Brévin, France.
- Slides (in French): presentation of the results obtained during my thesis about the study of vesicules by shape optimization methods.
- Conference MODE, 2014 March 26th-28th, Institut National des Sciences Appliquées (INSA), Rennes, France.
- Slides (in French): presentation of my thesis results during a session about shape optimization.
- Journée Scientifique de la Fédération Charles Hermite, 2013 October 1st, Institut Elie Cartan de Lorraine (IECL), Nancy, France.
- Slides (in French): presentation of my thesis work during this scientific day Shapes and Numerical Geometry.
- Participation to conferences with an oral communication
- Third Morning for Young Researchers: scientific calculus at interfaces, 2015 December 11th, Institut du Calcul et de la Simulation (ICS), Université Pierre et Marie Curie (UPMC), Paris, France.
- Slides (in French): communication on my ongoing work (30 minutes) about maximal probability domains in quantum chemistry.
- International Colloquium about Partial Differential Equations, Optimal design, and Numerics, 2015 August 23th-September 4th, Centro de Ciencas de Benasque Pedro Pascual (CCBPP), Benasque, Spain.
- Presentation about one of my thesis work (30 minutes): on the minimization of total mean curvature.
- Third Forum Employment-Mathematics, 2013 December 6th, Conservatoire National des Arts et Métiers (CNAM), Paris, France.
- Slides (in French): short presentation of the work done during the event Cinquième Semaine d'Etude Mathématiques-Entreprises (SEME5 2013).
- Involved in the promotion of the courses in mathematics for the University of Lorraine during this event.
- SMAI Congress, 2013 May 27th-31th, Seignosse, France
- Poster (in French):about my thesis results.
- Poster (in French): about the work done during the event Cinquième Semaine d'Etude Mathématiques-Entreprises (SEME5 2013) .
- Formative activities
- Summer schools
- International workshops
- Shape Optimization, Isoperimetric and Functional Inequalities, 2016 November 21th-25th, Centre International de Rencontres Mathématiques (CIRM), Luminy, France.
- Mini Workshop on Control ad Inverse Problems of Partial Differential Equations, 2016 January 18th-19th Universidad Técnica Federico Santia María (UTFSM), Valparaíso, Chile
- Calculus of variations and optimization: a conference to celebrate the 60th birthday of Giuseppe Buttazzo, 2014 May 21th-23th, Pisa, Italy.
- Shape Optimization Problems and Spectral Theory, 2012 May 28th-June 1st, Centre International de Rencontres Mathématiques (CIRM), Luminy, France.
- Participation to seminars and working sessions
- Colloquium ISCD, 2018-, Institut des Sciences du Calcul et des Données (ISCD), Sorbonne Université (SU), Paris, France.
- Mardis de l'ISCD, 2017-, Institut des Sciences du Calcul et des Données (ISCD), Sorbonne Université (SU), Paris, France.
- March 2018: three minutes to describe on a few slides (in French) some examples of applications of the MPD program.
- October 2017: three minutes to describe on a slide the context of my research project.
- Member of the ANR project Optiform (previously named ANR project GAOS), 2012-2016, Nancy, Rennes, Rhônes-Alpes, Paris, France, This project is concerned with the theoretical and numerical study of optimal shapes minimizing with constraints some criteria related to partial differential equations, geometric quantities, and to some inverse or spectral problems.
- June 2015: computing maximal probability domains in quantum chemistry (slides in French).
- February 2014: on the minimization of the total mean curvature and other quantities.
- June 2013: about the Willmore and Helfrich energies.
- March 2012: work in progress.
- October 2011: shape optimization of the moving bottom of a tank to generate surfing waves.
- Seminar of Mathematical Mechanics, 2015-2016, Centro de Modelamiento Matemático (CMM), Santiago, Chile.
- CALSIMLAB Seminar, 2014-2015, Institut du Calcul et de la Simulation (ICS), Université Pierre et Marie Curie (UPMC), Paris, France.
- EMC2 Seminar, 2014-2015, Institut du Calcul et de la Simulation (ICS), Université Pierre et Marie Curie (UPMC), Paris, France.
- ICS Working session, 2014-2015, Institut du Calcul et de la Simulation (ICS), Université Pierre et Marie Curie (UPMC), Paris, France.
- PDE Seminar of the laboratory, 2011-2014, Institut Elie Cartan de Lorraine (IECL), Nancy, France.
- Seminar of the laboratory, 2010, Basque Center for Applied Mathematics (BCAM), Bilbao, Spain.
- Collaboration with companies and interdisciplinary projects
- Presentation of the MPD program (in French), 2018 February 22th, Laboratoire de Chimie Théorique (LCT), Sorbonne Université, Paris, France.
- Collaborative meeting with an institute affiliated to Codelco, 2016 August 23rd, Instituto de Innovación en Minería y Metalurgia (IM2), Santiago, Chile.
- Initiation of a collaborating project for a potential funding of Fondecyt.
- Subject: numerics and inverse problems in a copper converter.
- Collaborators: Axel Osses and Matias Courdurier.
- Slides of the meeting with:
- Axel Osses, Centro de Modelamiento Matemático (CMM), Facultad de Ciencas Físicas y Matemáticas (FCFM), Universidad de Chile (UC), Santiago, Chile.
- Matias Courdurier, Pontificia Universidad Católica (PUC), Santiago, Chile.
- Rodrigo Caro, Claudio Fuentes et Rosales Marco, Instituto de Innovación en Minería y Metalurgia (IM2), Santiago, Chile.
- Collaborative meeting for the project associated with the CALSIMLAB labex, 2014-2015, Université Pierre et Marie Curie (UPMC), Paris, France.
- Attended various posdoctoral meetings with:
- Pascal Frey and Jérémy Foulon, Institut du Calcul et de la Simulation (ICS), Université Pierre et Marie Curie (UPMC), Paris, France.
- Benoît Braïda and Andreas Savin, Laboratoire de Chimie Théorique (LCT), Université Pierre et Marie Curie (UPMC), Paris, France.
- Eric Cancès, Centre d'Enseignement et de Recherche en Mathématiques et Calcul Scientifique (CERMICS), Ecole Nationale des Ponts et Chaussées (ENPC), Champs-sur-Marne, France.
- Guillaume Acke, Department of Inorganic and Physical Chemistry (DIPC), University of Ghent, Ghent, Belgium.
- Cinquième Semaine d'Etude Mathématiques-entreprises (SEME5 2013), 2013 February 11th-15th, Ecole Nationale Supérieure des Mines de Nancy (ENSMN), Nancy, France.
- Topic: reconstruction of geological layers from discrete data.
- Supervisor: Guillaume Caumon (GOCAD consortium).
- Slides (in French) of the presentation.
- Report (in French) of the SEME.
- Internship at the Basque Center for Applied Mathematics (BCAM), 2010 March-August, Bilbao, Spain.
- Topic: modelization and optimization of the shape of a moving bottom underwater generating artificial surfing waves.
- Advisors: Enrique Zuazua and Ricardo Barros; collaboration with a local Basque company.
- Internship report (in English).
- Master's degree report (in English).
- Assignment for GDF SUEZ, September 2009-February 2010, Centre de Recherche et Innovation Gaz et Energies Nouvelles (CRIGEN), Saint-Denis la Plaine, France.
- Topic: theoretical and numerical modeling of the influence of new combined cycles in the primary network of gas.
- Advisors: Laure Sinegre, Natacha Castellan, and Artur Jacquiau; collaboration with GRTGaz.
- Internship report (in French).
- Slides of the defense (in French).
- Internship at Billon SAS, February 2008-March 2008, Villejuif, France.
- Six weeks spent on a punching-unit in this manufacturing company.
- Administrative and other responsabilities
- 2018-: substitute member at the council of the institute, Institut des Sciences du Calcul et des Données (ISCD), Paris, France.
- 2012-2014: member of the research laboratory council, Institut Elie Cartan de Lorraine (IECL), Nancy, France.
- Elected by the PhD students for representing them during two years at the council of the mathematical institute.
- 2013: Reviewer for the international scientific journal ESAIM Proceedings and Surveys.
- 2011-2013: member of the committee for scientific mediation and computer literacy (CMSCI), Institut National de Recherche en Informatique et Automatique (INRIA), Nancy, France.
Teaching activities
- Invited teacher at the summer school Scientific Trends at the Interfaces Mathematics/Chemistry/High Performance Computing, 2015 July 15th-August 14th, Roscoff, France.
- Lectures (2x3h) and computer sessions on MATLAB (2x3h).
- Topic: shape optimization, level-set methods, and adaptive mesh techniques to compute maximal probability domains in quantum chemistry.
- Teaching assistant (2011-2014), Ecole Nationale Supérieure d'Electricité et de Mécanique (ENSMN), Nancy, France.
- 2x12h: Distributions and partial differential equations.
- 1x10h: Complex analysis
- Notes (in French): document written by Emmanuel Plaut.
- 1x10h: Numerical analysis first-year students (MATLAB sessions + reports to correct)
- Notes (in French): document written by Xavier Antoine.
- Session 1 (in French): errors in numerical analysis.
- Session 2 (in French): resolution of non-linear equations.
- Session 3 (in French): interpolation and applications.
- Session 4 (in French): derivation and numerical integration.
- Session 5 (in French): numerical resolution of differential equations.
- Session 6 (in French): resolution of linear systems.
- 3x6h: Numerical analysis second-year students (MATLAB sessions + reports to correct)
- Notes (in French): document written by Xavier Antoine.
- Session 1 (in French): optimization with constraints and gradient methods.
- Session 2 (in French): optimization with constraints and Newton methods.
Simulations (in construction)
- Video reproducing the non-linear interaction between two solitary waves.
- Video reproducing the experience of Zabusky and Kruskal in the discovery of solitary waves.
- Video reproducing the waves generated by a moving bottom underwater thanks to the forced Korteweg-de Vries model.
- Numerical results obtained from the model of Maximal Probability Domains (MPDs) in computational quantum chemistry.
Updated 2019-05-05 04:00 PM CLST
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