Please note that the list below only shows forthcoming events, which may not include regular events that have not yet been entered for the forthcoming term. Please see the past events page for a list of all seminar series that the department has on offer.

 

Wed, 28 Sep 2022 09:00 -
Mon, 30 Jun 2025 17:00
Mathematical Institute

Cascading Principles - a major mathematically inspired art exhibition by Conrad Shawcross - extended until June 2025

Further Information

Oxford Mathematics is delighted to be hosting one of the largest exhibitions by the artist Conrad Shawcross in the UK. The exhibition, Cascading Principles: Expansions within Geometry, Philosophy, and Interference, brings together over 40 of Conrad's mathematically inspired works from the past seventeen years. Rather than in a gallery, they are placed in the working environment of the practitioners of the subject that inspired them, namely mathematics.

Conrad Shawcross models scientific thought and reasoning within his practice. Drawn to mathematics, physics, and philosophy from the early stages of his artistic career, Shawcross combines these disciplines in his work. He places a strong emphasis on the nature of matter, and on the relativity of gravity, entropy, and the nature of time itself. Like a scientist working in a laboratory, he conceives each work as an experiment. Modularity is key to his process and many works are built from a single essential unit or building block. If an atom or electron is a basic unit for physicists, his unit is the tetrahedron.

Unlike other shapes, a tetrahedron cannot tessellate with itself. It cannot cover or form a surface through its repetition - one tetrahedron is unable to fit together with others of its kind. Whilst other shapes can sit alongside one another without creating gaps or overlapping, tetrahedrons cannot resolve in this way. Shawcross’ Schisms are a perfect demonstration of this failure to tessellate. They bring twenty tetrahedrons together to form a sphere, which results in a deep crack and ruptures that permeate its surface. This failure of its geometry means that it cannot succeed as a scientific model, but it is this very failure that allows it to succeed as an art work, the cracks full of broad and potent implications.

The show includes all Conrad's manifold geometric and philosophical investigations into this curious, four-surfaced, triangular prism to date. These include the Paradigms, the Lattice Cubes, the Fractures, the Schisms, and The Dappled Light of the Sun. The latter was first shown in the courtyard of the Royal Academy and subsequently travelled all across the world, from east to west, China to America.

The show also contains the four Beacons. Activated like a stained-glass window by the light of the sun, they are composed of two coloured, perforated disks moving in counter rotation to one another, patterning the light through the non-repeating pattern of holes, and conveying a message using semaphoric language. These works are studies for the Ramsgate Beacons commission in Kent, as part of Pioneering Places East Kent.

The exhibition Cascading Principles: Expansions within Geometry, Philosophy, and Interference is curated by Fatoş Üstek, and is organised in collaboration with Oxford Mathematics. 

The exhibition is open 9am-5pm, Monday to Friday. Some of the works are in the private part of the building and we shall be arranging regular tours of that area. If you wish to join a tour please email @email.

The exhibition runs until 30 June 2025. You can see and find out more here.

Watch the four public talks centred around the exhibition (featuring Conrad himself).

The exhibition is generously supported by our longstanding partner XTX Markets.

Images clockwise from top left of Schism, Fracture, Paradigm and Axiom

Schism Fracture

Axiom Paradigm

Fri, 09 Aug 2024
16:00
L1

Topology and the Curse of Dimensionality

Gunnar Carlsson
(Stanford University)
Abstract

The "curse of dimensionality" refers to the host of difficulties that occur when we attempt to extend our intuition about what happens in low dimensions (i.e. when there are only a few features or variables)  to very high dimensions (when there are hundreds or thousands of features, such as in genomics or imaging).  With very high-dimensional data, there is often an intuition that although the data is nominally very high dimensional, it is typically concentrated around a much lower dimensional, although non-linear set. There are many approaches to identifying and representing these subsets.  We will discuss topological approaches, which represent non-linear sets with graphs and simplicial complexes, and permit the "measuring of the shape of the data" as a tool for identifying useful lower dimensional representations.

Mon, 26 Aug 2024

14:00 - 15:00
L6

Analytic K-theory for bornological spaces

Devarshi Mukherjee
(University of Münster)
Abstract

We define a version of algebraic K-theory for bornological algebras, using the recently developed continuous K-theory by Efimov. In the commutative setting, we prove that this invariant satisfies descent for various topologies that arise in analytic geometry, generalising the results of Thomason-Trobaugh for schemes. Finally, we prove a version of the Grothendieck-Riemann-Roch Theorem for analytic spaces. Joint work with Jack Kelly and Federico Bambozzi. 

Mon, 14 Oct 2024

14:00 - 15:00
Lecture Room 3

TBA

Amir Ali Ahmadi
(Princeton University, NJ)
Abstract

TBA

Thu, 17 Oct 2024

12:00 - 13:00
L3

OCIAM TBC

Mohit Dalwadi
(Mathematical Institute)

The join button will be published 30 minutes before the seminar starts (login required).

Tue, 22 Oct 2024

14:00 - 15:00
L6

TBC

Stacey Law
(University of Birmingham)
Abstract

to follow

Thu, 24 Oct 2024

12:00 - 13:00
L3

OCIAM TBC

OCIAM TBC

The join button will be published 30 minutes before the seminar starts (login required).

Tue, 29 Oct 2024

14:00 - 15:00
L6

TBC

Jack G Shotton
(University of Durham)
Abstract

to follow

Thu, 31 Oct 2024

12:00 - 13:00
L3

OCIAM TBC

Jesse Taylor-West
(University of Bristol)

The join button will be published 30 minutes before the seminar starts (login required).

Fri, 01 Nov 2024

11:00 - 12:00
L3

To be announced

Prof Alan Lindsay
(Dept of Applied and Computational Maths University of Notre Dame)
Mon, 04 Nov 2024

14:00 - 15:00
Lecture Room 3

TBA

Bodgan Toader
(Cambridge University)
Abstract

TBA

Mon, 04 Nov 2024

14:30 - 15:30
tbc

tba

Aditya Kolachana
(IIT Madras)
Abstract

tba

Thu, 07 Nov 2024

12:00 - 13:00
L3

OCIAM TBC

Prof. Samir Ghadiali
((Imperial College)

The join button will be published 30 minutes before the seminar starts (login required).

Fri, 08 Nov 2024

11:00 - 12:00
L3

Functional, neutral and selected heterogeneity in multi-cellular populations and human tissues

Dr David Tourigny
(School of Mathematics University of Birmingham)
Abstract
No biological system involves a single cell functioning in isolation. Almost all consist of highly connected networks of interacting individuals, which respond and adapt differently to signals and conditions within their local microenvironment. For example, human tissues and their cancers contain mosaics of genetic clones, and the transcriptomic and metabolic profiles from genetically identical cells are also highly heterogeneous. As the full extent of multi-cellular heterogeneity is revealed by recent experimental advances, computational and mathematical modelling can begin to provide a quantitative framework for understanding its biological implications. In this talk, I will describe some functional aspects of multi-cellular heterogeneity and explore the consequences for human health and disease.


 

Mon, 11 Nov 2024

14:00 - 15:00
Lecture Room 3

TBA

Yunhao Tang
(Google Deep Mind)
Abstract

TBA

Tue, 12 Nov 2024

14:00 - 15:00
L6

TBC

Shaun Stevens
(UEA)
Abstract

to follow

Thu, 14 Nov 2024

12:00 - 13:00
L3

OCIAM TBC

Marino Arroyo
(Universitat Politecnica de Catalunya)

The join button will be published 30 minutes before the seminar starts (login required).

Fri, 15 Nov 2024

11:00 - 12:00
L3

Lane formation and aggregation spots in foraging ant

Dr Maria Bruna
(Mathematical Institute University of Oxford)
Abstract

We consider a system of interacting particles as a model for a foraging ant colony, where each ant is represented as an active Brownian particle. The interactions among ants are mediated through chemotaxis, aligning their orientations with the upward gradient of a pheromone field. Unlike conventional models, our study introduces a parameter that enables the reproduction of two distinctive behaviours: the conventional Keller-Segel aggregation and the formation of travelling clusters without relying on external constraints such as food sources or nests. We consider the associated mean-field limit of this system and establish the analytical and numerical foundations for understanding these particle behaviours.

Tue, 19 Nov 2024

14:00 - 15:00
L6

TBC

Dario Beraldo
(UCL)
Abstract

to follow

Tue, 19 Nov 2024
16:00

TBA

Jean-Philippe Bouchaud
(Ecole Normale Supérieure/Capital Fund Management)
Abstract

TBA