Professor of Computer Science at Sorbonne University
Head of the PEQUAN team
Address
Sorbonne University
Pierre and Marie Curie Campus
LIP6
PEQUAN research team
Boîte courrier 169
4, place Jussieu
F-75252 Paris Cedex 05
France
Email: stef.graillat @ sorbonne-universite.fr
Office: Tower 26-00, 3rd floor, office 313
Phone: +33 (0)1 44 27 87 90
Mobile phone: +33 (0)6 19 81 51 85
Fax: +33 (0)1 44 27 75 41
Url: http://www-pequan.lip6.fr/~graillat
Curriculum vitae -- Research Statements -- Teaching Statements
Research Interests
- Computer arithmetic, interval arithmetic
- Numerical quality of scientific software, rounding error analysis
- Numerical linear algebra, numerical algorithms
- Computer algebra, numerical polynomial algebra
- High performance scientific computing
Research
(with Guangping Yu, Hao Jiang, Chun Huang and Tao Tang) A Compensated Estrin Scheme for Accurate Polynomial Evaluation
Research report hal-05580898, April 2026- (with Yizhi Yang, David Defour, and Fabienne Jézéquel) Optimization of the representation of results in interval arithmetic
Research report hal-05514405, February 2026
- Verifying zeros of interval polynomials
Research report hal-05447053, January 2026
- (with Jérémy Berthomieu, Dimitri Lesnoff and Theo Mary) Multiword matrix multiplication over large finite fields in floating-point arithmetic
Research report hal-04917201, January 2025
- (with Jean-Michel Muller) Emulation of 3Sum, 4Sum, the FMA and the FD2 instructions in rounded-to-nearest floating-point arithmetic
Research report hal-04624238, June 2024
- Publications
- Software
Teaching 2025-2026
First semester
Second semester
Stef Graillat
(Last modification: August 26th, 2025)
