Question: Which French actress has a younger brother who is a Distinguished Professor and A.G. and M.E. Owen Chair of Mathematics at a coeducational public research university in College Station, Texas, United States?

<P0-S0> William Buhmann Johnson (born December 5, 1944) is an American mathematician, one of the namesakes of the Johnson–Lindenstrauss lemma. <P0-S1>  He is Distinguished Professor and A.G. & M.E. Owen Chair of Mathematics at Texas A&M University. <P0-S2>  His research specialties include the theory of Banach spaces, nonlinear functional analysis, and probability theory. <P0-S3>  He was born in Palo Alto, California and raised from an early age in Dallas, Texas. <SEP> <P1-S0> Louisiana Tech University, colloquially referred to as Louisiana Tech or La. <P1-S1>  Tech, is a coeducational public research university in Ruston, Louisiana, United States. <P1-S2>  Louisiana Tech is designated as a Tier One national university by the 2018 U.S. News & World Report college rankings and is the only Tier One national university in the nine-member University of Louisiana System. <P1-S3>  It is a space grant college, member of the Southeastern Universities Research Association, member of the Association of Public and Land-Grant Universities, is a "R3: Doctoral University with moderate research activity," according to the Carnegie Foundation Doctoral University. <P1-S4> Louisiana Tech conducts research with ongoing projects funded by agencies such as National Aeronautics and Space Administration (NASA), the National Institutes of Health (NIH), the National Science Foundation (NSF), the Department of Defense (DoD), and the Federal Aviation Administration (FAA). <P1-S5>  Louisiana Tech is one of less than 50 comprehensive research universities in the nation and the only university in Louisiana to be designated as a National Center of Academic Excellence in Information Assurance Education and Research and a National Center of Academic Excellence in Cyber Defense Education and Research by the National Security Agency (NSA) and the United States Department of Homeland Security (DHS). <P1-S6>  Also, the FAA named Louisiana Tech to the National Center of Excellence for Unmanned Aircraft Systems. <P1-S7>  The university is known for its engineering and science programs. <SEP> <P2-S0>  He is known for his contributions to several fields of mathematics, including functional analysis, probability theory, harmonic analysis, and operator theory. <P2-S1> Gilles I. Pisier (born 18 November 1950) is a Professor of Mathematics at the Pierre and Marie Curie University and a Distinguished Professor and A.G. and M.E. Owen Chair of Mathematics at the Texas A&M University. <P2-S2>  He has also made fundamental contributions to the theory of C*-algebras. <P2-S3>  Gilles is the younger brother of French actress Marie-France Pisier. <SEP> <P3-S0>  It is a state university and is a member of the Texas A&M University System. <P3-S1>  The Texas A&M system endowment is one of the 10 biggest in the nation. <P3-S2> Texas A&M University (Texas A&M, TAMU , or A&M) is a coeducational public research university in College Station, Texas, United States. <P3-S3>  Texas A&M's student body is the largest in Texas and one of the largest in the United States. <P3-S4>  Texas A&M's designation as a land, sea, and space grant institution–the only university in Texas to hold all three designations–reflects a range of research with ongoing projects funded by organizations such as the National Aeronautics and Space Administration (NASA), the National Institutes of Health, the National Science Foundation, and the Office of Naval Research. <P3-S5>  In 2001, Texas A&M was inducted as a member of the prestigious Association of American Universities. <P3-S6>  The school's students, alumni—over 450,000 strong—and sports teams are known as Aggies. <P3-S7>  The Texas A&M Aggies athletes compete in 18 varsity sports as a member of the Southeastern Conference.