Tue, 12 Jan 2021

10:00 - 12:00
Virtual

An invitation to matroid theory - Day 2, Lectures 1 & 2

Greg Henselman-Petrusek
(Mathematical Institute)
Further Information

Zoom Passcode: Basis

Abstract

Giancarlo Rota once wrote of matroids that "It is as if one were to
condense all trends of present day mathematics onto a single
structure, a feat that anyone would a priori deem impossible, were it
not for the fact that matroids do exist" (Indiscrete Thoughts, 1997).
This makes matroid theory a natural hub through which ideas flow from
one field of mathematics to the next. At the end of our three-day
workshop, participants will understand the most common objects and
constructions in matroid theory to the depth suitable for exploring
many of these interesting connections. We will also pick up some
highly practical matroid tools for working through problems in
persistent homology, (optimal) cycle representatives, and other
objects of interest in TDA.

Day 2, Lecture 1, 10-10.45am

Matroid representations, continued


Day 2, Lecture 2, 11-11.45am

Matroids in homological algebra

Mon, 11 Jan 2021

10:00 - 10:45
Virtual

An invitation to matroid theory

Greg Henselman-Petrusek
(Mathematical Institute)
Further Information

Zoom Passcode: Basis

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Abstract

Giancarlo Rota once wrote of matroids that "It is as if one were to
condense all trends of present day mathematics onto a single
structure, a feat that anyone would a priori deem impossible, were it
not for the fact that matroids do exist" (Indiscrete Thoughts, 1997).
This makes matroid theory a natural hub through which ideas flow from
one field of mathematics to the next. At the end of our three-day
workshop, participants will understand the most common objects and
constructions in matroid theory to the depth suitable for exploring
many of these interesting connections. We will also pick up some
highly practical matroid tools for working through problems in
persistent homology, (optimal) cycle representatives, and other
objects of interest in TDA.

Condensed outline

Day 1, Lecture 1, 10-10.45am

Definitions There are many definitions of matroids. Here's how to organize them.
Examples We work with matroids every day. Here are a few you have seen.
Important properties What's so great about a matroid?

Day 1, Lecture 2, 11-11.45am

The essential operations: deletion, contraction, and dualization
Working with matroids: matrix representations

Practical considerations for measuring the effective reproductive number, R t.
Gostic, K McGough, L Baskerville, E Abbott, S Joshi, K Tedijanto, C Kahn, R Niehus, R Hay, J De Salazar, P Hellewell, J Meakin, S Munday, J Bosse, N Sherrat, K Thompson, R White, L Huisman, J Scire, J Bonhoeffer, S Stadler, T Wallinga, J Funk, S Lipsitch, M Cobey, S medRxiv (28 Aug 2020) https://www.ncbi.nlm.nih.gov/pubmed/32607522

Happy New Year! 2021 has a lot to make up for after 2020, so we're starting with a bang with the launch of the Oxford Online Maths Club, a new weekly maths livestream from Oxford Mathematics.

LeptonInjector and LeptonWeighter: A neutrino event generator and weighter for neutrino observatories
Abbasi, R Ackermann, M Adams, J Aguilar, J Ahlers, M Ahrens, M Alispach, C Alves, A Amin, N An, R Andeen, K Anderson, T Ansseau, I Anton, G Argüelles, C Axani, S Bai, X Balagopal, A Barbano, A Barwick, S Bastian, B Basu, V Baum, V Baur, S Bay, R Beatty, J Becker, K Becker Tjus, J Bellenghi, C BenZvi, S Berley, D Bernardini, E Besson, D Binder, G Bindig, D Blaufuss, E Blot, S Böser, S Botner, O Böttcher, J Bourbeau, E Bourbeau, J Bradascio, F Braun, J Bron, S Brostean-Kaiser, J Burgman, A Busse, R Campana, M Chen, C Chirkin, D Choi, S Clark, B Clark, K Classen, L Coleman, A Collin, G Conrad, J Coppin, P Correa, P Cowen, D Cross, R Dave, P De Clercq, C DeLaunay, J Dembinski, H Deoskar, K De Ridder, S Desai, A Desiati, P de Vries, K de Wasseige, G de With, M DeYoung, T Dharani, S Diaz, A Díaz-Vélez, J Dujmovic, H Dunkman, M DuVernois, M Dvorak, E Ehrhardt, T Eller, P Engel, R Evans, J Evenson, P Fahey, S Fazely, A Fiedlschuster, S Fienberg, A Filimonov, K Finley, C Fischer, L Fox, D Franckowiak, A Friedman, E Fritz, A Fürst, P Gaisser, T Gallagher, J Computer Physics Communications volume 266 (27 May 2021)
Explaining cosmic ray antimatter with secondaries from old supernova remnants
Mertsch, P Sarkar, S Vittino, A 144 (06 Jul 2021)
The effect of the definition of ‘pandemic’ on quantitative assessments of infectious disease outbreak risk
Bonsall, M Singer, B Thompson, R Scientific Reports volume 11 (28 Jan 2021)

We are very sad to hear the news of the death of Peter Neumann earlier today. Peter was the son of the mathematicians Bernhard Neumann and Hanna Neumann and, after gaining a B.A. from The Queen's College, Oxford in 1963, obtained his D.Phil from Oxford University in 1966.

Follow-up of astrophysical transients in real time with the IceCube
Neutrino Observatory
Abbasi, R Ackermann, M Adams, J Aguilar, J Ahlers, M Ahrens, M Alispach, C Jr, A Amin, N An, R Andeen, K Anderson, T Ansseau, I Anton, G Argüelles, C Axani, S Bai, X V, A Barbano, A Barwick, S Bastian, B Basu, V Baum, V Baur, S Bay, R Beatty, J Becker, K Tjus, J Bellenghi, C BenZvi, S Berley, D Bernardini, E Besson, D Binder, G Bindig, D Blaufuss, E Blot, S Böser, S Botner, O Böttcher, J Bourbeau, E Bourbeau, J Bradascio, F Braun, J Bron, S Brostean-Kaiser, J Burgman, A Busse, R Campana, M Chen, C Chirkin, D Choi, S Clark, B Clark, K Classen, L Coleman, A Collin, G Conrad, J Coppin, P Correa, P Cowen, D Cross, R Dave, P Clercq, C DeLaunay, J Dembinski, H Deoskar, K Ridder, S Desai, A Desiati, P Vries, K Wasseige, G With, M DeYoung, T Dharani, S Diaz, A Díaz-Vélez, J Dujmovic, H Dunkman, M DuVernois, M Dvorak, E Ehrhardt, T Eller, P Engel, R Evans, J Evenson, P Fahey, S Fazely, A Fiedlschuster, S Fienberg, A Filimonov, K Finley, C Fischer, L Fox, D Franckowiak, A Friedman, E Fritz, A Fürst, P Gaisser, T Gallagher, J Ganster, E Garrappa, S Gerhardt, L Ghadimi, A Glaser, C Glauch, T Glüsenkamp, T Goldschmidt, A Gonzalez, J Goswami, S Grant, D Grégoire, T Griffith, Z Griswold, S Gündüz, M Haack, C Hallgren, A Halliday, R Halve, L Halzen, F Minh, M Hanson, K Hardin, J Harnisch, A Haungs, A Hauser, S Hebecker, D Helbing, K Henningsen, F Hettinger, E Hickford, S Hignight, J Hill, C Hill, G Hoffman, K Hoffmann, R Hoinka, T Hokanson-Fasig, B Hoshina, K Huang, F Huber, M Huber, T Hultqvist, K Hünnefeld, M Hussain, R In, S Iovine, N Ishihara, A Jansson, M Japaridze, G Jeong, M Jones, B Joppe, R Kang, D Kang, W Kang, X Kappes, A Kappesser, D Karg, T Karl, M Karle, A Katz, U Kauer, M Kellermann, M Kelley, J Kheirandish, A Kim, J Kin, K Kintscher, T Kiryluk, J Klein, S Koirala, R Kolanoski, H Köpke, L Kopper, C Kopper, S Koskinen, D Koundal, P Kovacevich, M Kowalski, M Krings, K Krückl, G Kurahashi, N Kyriacou, A Gualda, C Lanfranchi, J Larson, M Lauber, F Lazar, J Leonard, K Leszczyńska, A Li, Y Liu, Q Lohfink, E Mariscal, C Lu, L Lucarelli, F Ludwig, A Luszczak, W Lyu, Y Ma, W Madsen, J Mahn, K Makino, Y Mallik, P Mancina, S Mariş, I Maruyama, R Mase, K McNally, F Meagher, K Medina, A Meier, M Meighen-Berger, S Merz, J Micallef, J Mockler, D Momenté, G Montaruli, T Moore, R Morse, R Moulai, M Naab, R Nagai, R Naumann, U Necker, J Nguyên, L Niederhausen, H Nisa, M Nowicki, S Nygren, D Pollmann, A Oehler, M Olivas, A O'Sullivan, E Pandya, H Pankova, D Park, N Parker, G Paudel, E Peiffer, P Heros, C Philippen, S Pieloth, D Pieper, S Pizzuto, A Plum, M Popovych, Y Porcelli, A Rodriguez, M Price, P Pries, B Przybylski, G Raab, C Raissi, A Rameez, M Rawlins, K Rea, I Rehman, A Reimann, R Renschler, M Renzi, G Resconi, E Reusch, S Rhode, W Richman, M Riedel, B Robertson, S Roellinghoff, G Rongen, M Rott, C Ruhe, T Ryckbosch, D Cantu, D Safa, I Herrera, S Sandrock, A Sandroos, J Santander, M Sarkar, S Satalecka, K Scharf, M Schaufel, M Schieler, H Schlunder, P Schmidt, T Schneider, A Schneider, J Schröder, F Schumacher, L Sclafani, S Seckel, D Seunarine, S Shefali, S Silva, M Skrzypek, B Smithers, B Snihur, R Soedingrekso, J Soldin, D Spiczak, G Spiering, C Stachurska, J Stamatikos, M Stanev, T Stein, R Stettner, J Steuer, A Stezelberger, T Stokstad, R Stuttard, T Sullivan, G Taboada, I Tenholt, F Ter-Antonyan, S Tilav, S Tischbein, F Tollefson, K Tomankova, L Tönnis, C Toscano, S Tosi, D Trettin, A Tselengidou, M Tung, C Turcati, A Turcotte, R Turley, C Twagirayezu, J Ty, B Elorrieta, M Vandenbroucke, J Eijk, D Eijndhoven, N Vannerom, D Santen, J Verpoest, S Vraeghe, M Walck, C Wallace, A Watson, T Weaver, C Weindl, A Weiss, M Weldert, J Wendt, C Werthebach, J Weyrauch, M Whelan, B Whitehorn, N Wiebe, K Wiebusch, C Williams, D Wolf, M Woschnagg, K Wrede, G Wulff, J Xu, X Xu, Y Yanez, J Yoshida, S Yuan, T Zhang, Z The Astrophysical Journal: an international review of astronomy and astronomical physics http://arxiv.org/abs/2012.04577v1
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