About

Name	André HARNIST
Role	Post-doctoral researcher
Affiliation	Inria Paris – SERENA team
Curriculum vitæ	CV in english – CV en français

Contact

Email	andre.harnist@inria.fr
Postal address	2 rue Simone Iff 75589 Paris France
Office	n°410, 4th floor, Building A [Map]
Social network

Research

Research interests	Theoretical and numerical analysis of PDEs Fluid and solid mechanics Advanced PDE discretization methods A priori and a posteriori error estimates
Post-doc	"Adaptive numerical schemes integrating discretization, regularization, linearization, and algebraic resolution" in the context of the ERC Consolidator Grant GATIPOR in collaboration with Martin Vohralík
Highlights	Mini-Symposium "Recent Advances on Polytopal Methods" for the WCCM XV - APCOM VIII conference Workshop ERC Consolidator Grant GATIPOR

Teaching

Affiliation	IPSA Paris – Air, space and sustainable mobility engineering school
Courses	Differentiable Optimization Quadrature and numerical resolution of ODEs Finite difference methods

Publications

Articles

June 2021	A Hybrid High-Order method for incompressible flows of non-Newtonian fluids with power-like convective behaviour Daniel Castanon Quiroz, Daniele A. Di Pietro, and André Harnist IMA J. Numer. Anal., 2021. Published online. [PDF] DOI 10.1093/imanum/drab087 HAL preprint hal-03273118 arXiv preprint arXiv:2106.14950
Dec. 2020	Improved error estimates for Hybrid High-Order discretizations of Leray-Lions problems Daniele A. Di Pietro, Jérôme Droniou, and André Harnist Calcolo 58, 19 (2021) [PDF] DOI 10.1007/s10092-021-00410-z HAL preprint hal-03049154 arXiv preprint arXiv:2012.05122
Mar. 2020	A Hybrid High-Order method for creeping flows of non-Newtonian fluids Michele Botti, Daniel Castanon Quiroz, Daniele A. Di Pietro, and André Harnist ESAIM: Math. Model. Numer. Anal., 2021, 55(5):2045–2073. [PDF] DOI 10.1051/m2an/2021051 HAL preprint hal-02519233 arXiv preprint arXiv:2003.13467

Theses

Oct. 2021

Hybrid High-Order methods for complex problems in fluid mechanics
André Harnist
PhD thesis, University of Montpellier (2021) [PDF]
HAL theses tel-03518264

Communications

Presentations

Oct. 2021	Hybrid High-Order methods for complex problems in fluid mechanics ACSIOM seminar, IMAG, Montpellier, France
Sep. 2021	A HHO method for incompressible flows of non-Newtonian fluids with power-like convective behaviour 18th European Finite Element Fair, Inria, Paris, France [PDF]
July 2021	Improved error estimates for Hybrid High-Order discretizations of Leray-Lions problems 6th ECCOMAS Young Investigators Conference, Valencia, Spain – Online [PDF]
Apr. 2021	Improved error estimates for Hybrid High-Order discretizations of Leray-Lions problems SERENA seminar, Inria, Paris, France – Online
Feb. 2021	Improved error estimates for Hybrid High-Order discretizations of Leray-Lions problems ANZIAM Annual Conference 2021, Virtual event, Australia – Online
Jan. 2021	A Hybrid High-Order method for creeping flows of non-Newtonian fluids Eccomas Congress 2020 & 14th WCCM, Virtual event, France – Online [PDF]
Sep. 2020	A Hybrid High-Order method for creeping flows of non-Newtonian fluids Conference on Scientific Computing Algoritmy 2020 at Vysoke Tatry, Podbanske, Slovakia – Online
Feb. 2020	A Hybrid High-Order method for creeping flows of non-Newtonian fluids Ph.D. students Day at IMAG, Montpellier, France

Posters

July 2019	A Hybrid High-Order method for creeping flows of non-Newtonian fluids Doctiss 2019 day at i2S, Montpellier, France [PDF]
Apr. 2019	A Hybrid High-Order method for creeping flows of non-Newtonian fluids POEMS 2019 Conference at CIRM, France

Teaching

2021-2022	Differentiable Optimization (3rd year B.Sc.) at IPSA, Paris Tutorial classes (32h) Quadrature and numerical resolution of ODEs (3rd year B.Sc.) at IPSA, Paris Tutorial classes (24h) Finite difference methods (3rd year B.Sc.) at IPSA, Paris Tutorial classes (6h) Introduction to Matlab (1st year B.Sc.) at Université Sorbonne Paris Nord Tutorial classes (12h)
2020-2021	Mathematics of decision (3rd year B.Sc.) at Polytech Montpellier Person in charge: Lesson planning, Lecture, Tutorial classes, Practical work, Exams (64h) Resources Lectures: CM1, CM2 Tutorials: TD1, TD2 Practical works: TP1, TP2 Exams: EX1, EX2
2019-2020	Analysis and algebra 2 (1st year B.Sc.) at Polytech Montpellier Tutorial classes (24h) Analysis and algebra 1 (1st year B.Sc.) at Faculté des sciences de Montpellier Tutorial classes (42h)
2018-2019	Analysis and algebra 2 (1st year B.Sc.) at Polytech Montpellier Tutorial classes (42h) Numerical analysis (2nd year B.Sc.) at Faculté des sciences de Montpellier Tutorial classes (10h) Introduction to scientific software (2nd year B.Sc.) at Faculté des sciences de Montpellier Tutorial classes (12h)

Other

Memory Pi game

Memory Pi is a game I created for fun on Pi Day (14th March) and which consists of quickly typing as many digits of π as possible.
The European School of Strasbourg uses it to organize contests every Pi Day since 2019:
• Pi Day 2022
• Pi Day 2021
• Pi Day 2020
• Pi Day 2019

The American Mathematical Monthly

The American Mathematical Monthly is a journal in which university researchers post problems and challenge the readers to solve them. I am citing here some problems that I solved during my studies before starting my thesis which turned out to be challenging enough.

Apr. 2018	Problem 11933 [PDF] - with Megan Cook Problem 11932 [PDF] Gerald A. Edgar, Daniel H. Ullman & Douglas B. West (2018) Problems and Solutions, The American Mathematical Monthly, 125:5, 466-475 DOI: 10.1080/00029890.2018.1447207
Sep. 2016	Problem 11918 [PDF] Gerald A. Edgar, Daniel H. Ullman & Douglas B. West (2018) Problems and Solutions, The American Mathematical Monthly, 125:3, 276-283 DOI: 10.1080/00029890.2018.1424478
Mar. 2016	Problem 11884 [PDF] - with Megan Cook Gerald A. Edgar, Daniel H. Ullman & Douglas B. West (2017) (2017) Problems and Solutions, The American Mathematical Monthly, 124:10, 970-978 DOI: 10.4169/amer.math.monthly.124.10.970