Prof. Dr. Julijana Gjorgjieva 

Assistant Professor in Computational Neuroscience, Max Planck Institute for Brain Research, Technical University of Munich

The emergence of organization and computation in neural circuits 

How neural circuits become organized during early postnatal development based on patterns of spontaneous activity and different plasticity mechanisms. Prof. Julijana will show the emergence of organization at the sub-cellular and cellular level and discuss implications for computations implemented by these networks. These theoretical models and simulations are supported by experimental data and make numerous predictions for future experiments.

Zoom link 

Passcode: 959053

The OIST Neuroscience Club would like to invite you to a special presentation by Prof. Gordon Arbuthnott.  For his last public presentation, he will give a talk about his journey as a neuroscientist: past, present, and future. 

Professor Galia Dafni,  Concordia University

Title: Boundedness and continuity of rearrangements in BMO and VMO

Abstract:

Joint work with Almut Burchard (Toronto) and Ryan Gibara (Cincinnati). Let \(f\) be a function of bounded mean oscillation (BMO) on cubes in \(\mathbb{R}^n\), \(n > 1\). If \(f\) is rearrangeable, we show that its symmetric decreasing rearrangement\(Sf\) belongs to \(\mathrm{BMO}(\mathbb{R}^n)\). We also improve the bounds for the decreasing rearrangement \(f^*\) by Bennett, DeVore and Sharpley, \(\|f^*\|_{ \mathrm{BMO}(\mathbb{R}_+)} \leq C_n\|f\| _{\mathrm{BMO}(\mathbb{R}^n)}\), by eliminating the exponential dependence of \(C_n\) on the dimension \(n\). The key is to switch from cubes to a comparable family of shapes. Using a family of rectangles that is preserved under bisections, one can prove a dimension-free Calder\'on-Zygmund decomposition, and the boundedness of the decreasing rearrangement with the same constant. Restricting to the subspace of functions of vanishing mean oscillation (VMO), we show that these rearrangements take VMO functions to VMO functions. Furthermore, while the map from \(f\) to \(f^*\) is not continuous in the BMO seminorm, we prove continuity when the limit is in VMO.

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OIST-UT Joint talk series for future science-Season 5: Understanding of superorganisms: collective behavior, differentiation and social organization

Speaker: Samuel Creedon, City, University of London

Title: Defining an Affine Partition Algebra

Tuesday 9th November 2021, 16:00–17:00 JST (UTC+9), online on Zoom

Professor Denis Serre,  The UMPA

Title:  Compensated integrability: classical and singular Divergence-BV symmetric tensors

Abstract:

Compensated Integrability is a recent tool of Functional Analysis, which extends both the Gagliardo Inequality and the Isoperimetric Inequality. It concerns the determinant of positive symmetric tensors whose row-wise Divergence is controlled in the space of bounded measures. It is somehow dual to Brenier's Theorem of Optimal Transport. Its applications cover several domains in Mathematical Physics and in Differential Geometry.

CFF unit is pleased to invite you to the seminar.

Language: English

Prof. Tatiana Engel

Cold Spring Harbor Laboratory, Engel Laboratory, United States

https://facultyprofiles.cshl.edu/tatiana.engel

Zoom link: https://oist.zoom.us/j/98260915981?pwd=dWNFRVQrcUhCNWhrbGhtYWs0TEZPUT09