 Okay, so we will start so So welcome to everyone I'm Very glad to have this event tonight. So I am Emmanuel Lulmo I'm the director of IHS and I'm very glad to see such a diverse audience tonight for some of you Who doesn't know IHS at all you can skip of At the end of the you can skip the cocktail and have a nice tour of IHS instead But you can try to do both if you're gifted. No, you cannot skip the lecture because You you will have Christina, Richard and Valérie who can help you to tour On the IHS, but okay, so Let me just say a few words about IHS very short, so we are The science Institute created in 1958 so mainly in mathematics and theoretical physics Around a few Permanent professors at the highest level. We host a huge visiting program every year We host more than 200 visitors from all over the world of these people have academic positions in universities in the world and for example in the last five years we we had 60 nationalities represented at IHS among our visitors so as an institution we are Committed to promote to promoting diversity in any sense and We are not very good at this so out of 12 Professors and junior professors or CNRS researchers. We have three women Among the visitors we have only 10 percent of visitors which are female and so We really try to improve this It's a problem that we are not alone to face We try to organize events like this. We try to hire more people and but it's not a very easy task, but you I hope We will do some true progress on this question so now I would like to present Pierre Ponsu from the director of School of Mathematics He will say some words. Thank you. So welcome everybody So we're here because today is the arrival of the exhibition that you have seen in the hall when getting in It contains some portraits of female mathematicians essentially the new ones who were hired last year more or less and This is a creation of the Graduate School of Mathematics of Paris-Saclay and it's administrative and support team which I think so This exhibition is supposed to move from place to place it has been at the Lumène the big library uphill in Paris-Saclay for four weeks and now it's here then later on it will travel to To a Ecole Normale Supérieure Paris-Saclay to Agro Paris Tech to Central Superlake During the summer and then in the fall back to Horset to Versailles Horset and next year every and possibly in other places including public libraries Outside the academia why not? so I'm very glad to see such a such an audience So please enjoy don't hesitate to ask questions to our two experts here And now I will leave the floor to Audrey Antoine so Audrey Antoine is a very young mathematician. She's a master to student in algebra applied algebra in Versailles