Thu, 01 Dec 2022

12:00 - 13:00
L6

The inviscid limit of the stochastic Camassa--Holm equation with gradient noise

Peter Pang
Abstract

The Camassa--Holm (CH) equation is a nonlocal equation that manifests supercritical behaviour in ``wave-breaking" and non-uniqueness. In this talk, I will discuss the existence of global (dissipative weak martingale) solutions to the CH equation with multiplicative, gradient type noise, derived as an inviscid limit. The goal of the talk is twofold. The stochastic CH equation will be used to illustrate aspects of a stochastic compactness and renormalisation method which is popularly used to derive well-posedness and continuous dependence results in SPDEs. I shall also discuss how a lack of temporal compactness introduces fundamental difficulties in the case of the stochastic CH equation.

This talk is based on joint works with L. Galimbert and H. Holden, both at NTNU, and with K.H. Karlsen at the University of Oslo. 

Thu, 24 Nov 2022

12:00 - 13:00
L6

Multiscale analysis, low Mach number limit: from compressible to incompressible system

Aneta Wróblewska-Kamińska
Abstract

We will show asymptotic analysis for hydrodynamic system, as Navier-Stokes-Fourier system, as a useful tool in in the situation when certain parameters in the system – called characteristic numbers – vanish or become infinite. The choice of proper scaling, namely proper system of reference units, the parameters determining the behaviour of the system under consideration allow to eliminate unwanted or unimportant for particular phenomena modes of motion. The main goal of many studies devoted to asymptotic analysis of various physical systems is to derive a simplified set of equations - simpler for mathematical or numerical analysis. Such systems may be derived in a very formal way, however we will concentrate on rigorous mathematical analysis. I will concentrate on low Mach number limits with so called ill-prepared data and I will present some results which concerns passage from compressible to incompressible models of fluid flow emphasising difficulties characteristic for particular problems. In particular we will discuss Navier-Stokes-Fourier system on varying domains, a multi-scale problem for viscous heat-conducting fluids in fast rotation and the incompressible limit of compressible finitely extensible nonlinear bead-spring chain models for dilute polymeric fluids.

Evidence for neutrino emission from the nearby active galaxy NGC 1068.
 IceCube Collaboration*† Abbasi, R Ackermann, M Adams, J Aguilar, J Ahlers, M Ahrens, M Alameddine, J Alispach, C Alves, A Amin, N Andeen, K Anderson, T Anton, G Argüelles, C Ashida, Y Axani, S Bai, X Balagopal V, A Barbano, A Barwick, S Bastian, B Basu, 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 Boddenberg, M Bontempo, F Borowka, J Böser, S Botner, O Böttcher, J Bourbeau, E Bradascio, F Braun, J Brinson, B Bron, S Brostean-Kaiser, J Browne, S Burgman, A Burley, R Busse, R Campana, M Carnie-Bronca, E Chen, C Chen, Z Chirkin, D Choi, K Clark, B Clark, K Classen, L Coleman, A Collin, G Conrad, J Coppin, P Correa, P Cowen, D Cross, R Dappen, C Dave, P De Clercq, C DeLaunay, J Delgado López, D Dembinski, H Deoskar, K Desai, A Desiati, P de Vries, K de Wasseige, G de With, M DeYoung, T Diaz, A Díaz-Vélez, J Dittmer, M Dujmovic, H Dunkman, M DuVernois, M Dvorak, E Ehrhardt, T Eller, P Engel, R Erpenbeck, H Evans, J Evenson, P Fan, K Fazely, A Fedynitch, A Feigl, N 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 Garcia, A Garrappa, S Gerhardt, L Ghadimi, A Glaser, C Glauch, T Glüsenkamp, T Goldschmidt, A Gonzalez, J Goswami, S Grant, D Grégoire, T Griswold, S Günther, C Gutjahr, P Haack, C Hallgren, A Halliday, R Halve, L Halzen, F Ha Minh, M Hanson, K Hardin, J Harnisch, A Haungs, A Hebecker, D Helbing, K Henningsen, F Hettinger, E Hickford, S Hignight, J Hill, C Hill, G Hoffman, K Hoffmann, R Hokanson-Fasig, B Hoshina, K Huang, F Huber, M Huber, T Hultqvist, K Hünnefeld, M Hussain, R Hymon, K In, S Iovine, N Ishihara, A Jansson, M Japaridze, G Jeong, M Jin, M Jones, B Kang, D Kang, W Kang, X Kappes, A Kappesser, D Kardum, L Karg, T Karl, M Karle, A Katz, U Kauer, M Kellermann, M Kelley, J Kheirandish, A Kin, K Kintscher, T Kiryluk, J Klein, S Koirala, R Kolanoski, H Kontrimas, T Köpke, L Kopper, C Kopper, S Koskinen, D Koundal, P Kovacevich, M Kowalski, M Kozynets, T Kun, E Kurahashi, N Lad, N Lagunas Gualda, C Lanfranchi, J Larson, M Lauber, F Lazar, J Lee, J Leonard, K Leszczyńska, A Li, Y Lincetto, M Liu, Q Liubarska, M Lohfink, E Lozano Mariscal, C Lu, L Lucarelli, F Ludwig, A Luszczak, W Lyu, Y Ma, W Madsen, J Mahn, K Makino, Y Mancina, S Mariş, I Martinez-Soler, I Maruyama, R Mase, K McElroy, T McNally, F Mead, J Meagher, K Mechbal, S Medina, A Meier, M Meighen-Berger, S Micallef, J Mockler, D Montaruli, T Moore, R Morse, R Moulai, M Naab, R Nagai, R Nahnhauer, R Naumann, U Necker, J Nguyen, L Niederhausen, H Nisa, M Nowicki, S Nygren, D Obertacke Pollmann, A Oehler, M Oeyen, B Olivas, A O'Sullivan, E Pandya, H Pankova, D Park, N Parker, G Paudel, E Paul, L Pérez de Los Heros, C Peters, L Peterson, J Philippen, S Pieper, S Pittermann, M Pizzuto, A Plum, M Popovych, Y Porcelli, A Prado Rodriguez, M Price, P Pries, B Przybylski, G Raab, C Rack-Helleis, J Raissi, A Rameez, M Rawlins, K Rea, I Rehman, A Reichherzer, P Reimann, R Renzi, G Resconi, E Reusch, S Rhode, W Richman, M Riedel, B Roberts, E Robertson, S Roellinghoff, G Rongen, M Rott, C Ruhe, T Ryckbosch, D Rysewyk Cantu, D Safa, I Saffer, J Sanchez Herrera, S Sandrock, A Sandroos, J Santander, M Sarkar, S Satalecka, K Schaufel, M Schieler, H Schindler, S Schmidt, T Schneider, A Schneider, J Schröder, F Schumacher, L Schwefer, G Sclafani, S Seckel, D Seunarine, S Sharma, A Shefali, S Silva, M Skrzypek, B Smithers, B Snihur, R Soedingrekso, J Soldin, D Spannfellner, C Spiczak, G Spiering, C Stachurska, J Stamatikos, M Stanev, T Stein, R Stettner, J Steuer, A Stezelberger, T Stokstad, R Stürwald, T Stuttard, T Sullivan, G Taboada, I Ter-Antonyan, S Tilav, S Tischbein, F Tollefson, K Tönnis, C Toscano, S Tosi, D Trettin, A Tselengidou, M Tung, C Turcati, A Turcotte, R Turley, C Twagirayezu, J Ty, B Unland Elorrieta, M Valtonen-Mattila, N Vandenbroucke, J van Eijndhoven, N Vannerom, D van Santen, J Verpoest, S Walck, C Watson, T Weaver, C Weigel, P Weindl, A Weiss, M Weldert, J Wendt, C Werthebach, J Weyrauch, M Whitehorn, N Wiebusch, C Williams, D Wolf, M Woschnagg, K Wrede, G Wulff, J Xu, X Yanez, J Yoshida, S Yu, S Yuan, T Zhang, Z Zhelnin, P Science (New York, N.Y.) volume 378 issue 6619 538-543 (03 Nov 2022)
Graph Neural Networks for low-energy event classification & reconstruction in IceCube
 Abbasi, R Ackermann, M Adams, J Aggarwal, N Aguilar, J Ahlers, M Ahrens, M Alameddine, J Alves, A Amin, N Andeen, K Anderson, T Anton, G Argüelles, C Ashida, Y Athanasiadou, S Axani, S Bai, X V., A Baricevic, M Barwick, S Basu, V Bay, R Beatty, J Becker, K Tjus, J Beise, J Bellenghi, C Benda, S BenZvi, S Berley, D Bernardini, E Besson, D Binder, G Bindig, D Blaufuss, E Blot, S Bontempo, F Book, J Borowka, J Meneguolo, C Böser, S Botner, O Böttcher, J Bourbeau, E Braun, J Brinson, B Brostean-Kaiser, J Burley, R Busse, R Campana, M Carnie-Bronca, E Chen, C Chen, Z Chirkin, D Choi, K Clark, B Classen, L Coleman, A Collin, G Connolly, A Conrad, J Coppin, P Correa, P Countryman, S Cowen, D Cross, R Dappen, C Dave, P De Clercq, C DeLaunay, J López, D Dembinski, H Deoskar, K Desai, A Desiati, P de Vries, K de Wasseige, G DeYoung, T Diaz, A Díaz-Vélez, J Dittmer, M Dujmovic, H DuVernois, M Ehrhardt, T Eller, P Engel, R Erpenbeck, H Evans, J Evenson, P Fan, K Fazely, A Fedynitch, A Feigl, N Fiedlschuster, S Fienberg, A Finley, C Fischer, L Fox, D Franckowiak, A Friedman, E Fritz, A Fürst, P Gaisser, T Gallagher, J Ganster, E Garcia, A Garrappa, S Gerhardt, L Ghadimi, A Glaser, C Glauch, T Glüsenkamp, T Goehlke, N Gonzalez, J Goswami, S Grant, D Gray, S Grégoire, T Griswold, S Günther, C Gutjahr, P Haack, C Hallgren, A Halliday, R Halve, L Halzen, F Hamdaoui, H Minh, M Hanson, K Hardin, J Harnisch, A Hatch, P Haungs, A Helbing, K Hellrung, J Henningsen, F Heuermann, L Hickford, S Hill, C Hill, G Hoffman, K Hoshina, K Hou, W Huber, T Hultqvist, K Hünnefeld, M Hussain, R Hymon, K In, S Iovine, N Ishihara, A Jansson, M Japaridze, G Jeong, M Jin, M Jones, B Kang, D Kang, W Kang, X Kappes, A Kappesser, D Kardum, L Karg, T Karl, M Karle, A Katz, U Kauer, M Kelley, J Kheirandish, A Kin, K Kiryluk, J Klein, S Kochocki, A Koirala, R Kolanoski, H Kontrimas, T Köpke, L Kopper, C Koskinen, D Koundal, P Kovacevich, M Kowalski, M Kozynets, T Krupczak, E Kun, E Kurahashi, N Lad, N Gualda, C Larson, M Lauber, F Lazar, J Lee, J Leonard, K Leszczyńska, A Lincetto, M Liu, Q Liubarska, M Lohfink, E Love, C Mariscal, C Lu, L Lucarelli, F Ludwig, A Luszczak, W Lyu, Y Ma, W Madsen, J Mahn, K Makino, Y Mancina, S Sainte, W Mariş, I Marka, S Marka, Z Marsee, M Martinez-Soler, I Maruyama, R McElroy, T McNally, F Mead, J Meagher, K Mechbal, S Medina, A Meier, M Meighen-Berger, S Merckx, Y Micallef, J Mockler, D Montaruli, T Moore, R Morse, R Moulai, M Mukherjee, T Naab, R Nagai, R Naumann, U Nayerhoda, A Necker, J Neumann, M Niederhausen, H Nisa, M Nowicki, S Pollmann, A Oehler, M Oeyen, B Olivas, A Orsoe, R Osborn, J O'Sullivan, E Pandya, H Pankova, D Park, N Parker, G Paudel, E Paul, L de los Heros, C Peters, L Petersen, T Peterson, J Philippen, S Pieper, S Pizzuto, A Plum, M Popovych, Y Porcelli, A Rodriguez, M Pries, B Procter-Murphy, R Przybylski, G Raab, C Rack-Helleis, J Rameez, M Rawlins, K Rechav, Z Rehman, A Reichherzer, P Renzi, G Resconi, E Reusch, S Rhode, W Richman, M Riedel, B Roberts, E Robertson, S Rodan, S Roellinghoff, G Rongen, M Rott, C Ruhe, T Ruohan, L Ryckbosch, D Cantu, D Safa, I Saffer, J Salazar-Gallegos, D Sampathkumar, P Herrera, S Sandrock, A Santander, M Sarkar, S Schaufel, M Schieler, H Schindler, S Schlueter, B Schmidt, T Schneider, J Schröder, F Schumacher, L Schwefer, G Sclafani, S Seckel, D Seunarine, S Sharma, A Shefali, S Shimizu, N Silva, M Skrzypek, B Smithers, B Snihur, R Soedingrekso, J Søgaard, A Soldin, D Spannfellner, C Spiczak, G Spiering, C Stamatikos, M Stanev, T Stein, R Stezelberger, T Stürwald, T Stuttard, T Sullivan, G Taboada, I Ter-Antonyan, S Thompson, W Thwaites, J Tilav, S Tollefson, K Tönnis, C Toscano, S Tosi, D Trettin, A Tung, C Turcotte, R Twagirayezu, J Ty, B Elorrieta, M Upshaw, K Valtonen-Mattila, N Vandenbroucke, J van Eijndhoven, N Vannerom, D van Santen, J Vara, J Veitch-Michaelis, J Verpoest, S Veske, D Walck, C Wang, W Watson, T Weaver, C Weigel, P Weindl, A Weldert, J Wendt, C Werthebach, J Weyrauch, M Whitehorn, N Wiebusch, C Willey, N Williams, D Wolf, M Wrede, G Wulff, J Xu, X Yanez, J Yildizci, E Yoshida, S Yu, S Yuan, T Zhang, Z Zhelnin, P collaboration, T Journal of Instrumentation volume 17 issue 11 p11003- (01 Nov 2022)
Constraints on populations of neutrino sources from searches in the directions of IceCube neutrino alerts
 Abbasi, R Ackermann, M Adams, J Aggarwal, N Aguilar, J Ahlers, M Alameddine, J Alves, A Amin, N Andeen, K Anderson, T Anton, G Argüelles, C Ashida, Y Athanasiadou, S Axani, S Bai, X V., A Baricevic, M Barwick, S Basu, V Bay, R Beatty, J Becker, K Tjus, J Beise, J Bellenghi, C Benda, S BenZvi, S Berley, D Bernardini, E Besson, D Binder, G Bindig, D Blaufuss, E Blot, S Bontempo, F Book, J Borowka, J Meneguolo, C Böser, S Botner, O Böttcher, J Bourbeau, E Braun, J Brinson, B Brostean-Kaiser, J Burley, R Busse, R Campana, M Carnie-Bronca, E Chen, C Chen, Z Chirkin, D Choi, K Clark, B Classen, L Coleman, A Collin, G Connolly, A Conrad, J Coppin, P Correa, P Countryman, S Cowen, D Cross, R Dappen, C Dave, P De Clercq, C DeLaunay, J López, D Dembinski, H Deoskar, K Desai, A Desiati, P de Vries, K de Wasseige, G DeYoung, T Diaz, A Díaz-Vélez, J Dittmer, M Dujmovic, H DuVernois, M Ehrhardt, T Eller, P Engel, R Erpenbeck, H Evans, J Evenson, P Fan, K Fazely, A Fedynitch, A Feigl, N Fiedlschuster, S Fienberg, A Finley, C Fischer, L Fox, D Franckowiak, A Friedman, E Fritz, A Fürst, P Gaisser, T Gallagher, J Ganster, E Garcia, A Garrappa, S Gerhardt, L Ghadimi, A Glaser, C Glauch, T Glüsenkamp, T Goehlke, N Gonzalez, J Goswami, S Grant, D Gray, S Grégoire, T Griswold, S Günther, C Gutjahr, P Haack, C Hallgren, A Halliday, R Halve, L Halzen, F Hamdaoui, H Minh, M Hanson, K Hardin, J Harnisch, A Hatch, P Haungs, A Helbing, K Hellrung, J Henningsen, F Heuermann, L Hickford, S Hidvegi, A Hill, C Hill, G Hoffman, K Hoshina, K Hou, W Huber, T Hultqvist, K Hünnefeld, M Hussain, R Hymon, K In, S Iovine, N Ishihara, A Jansson, M Japaridze, G Jeong, M Jin, M Jones, B Kang, D Kang, W Kang, X Kappes, A Kappesser, D Kardum, L Karg, T Karl, M Karle, A Katz, U Kauer, M Kelley, J Kheirandish, A Kin, K Kiryluk, J Klein, S Kochocki, A Koirala, R Kolanoski, H Kontrimas, T Köpke, L Kopper, C Koskinen, D Koundal, P Kovacevich, M Kowalski, M Kozynets, T Krupczak, E Kun, E Kurahashi, N Lad, N Gualda, C Larson, M Lauber, F Lazar, J Lee, J Leonard, K Leszczyńska, A Lincetto, M Liu, Q Liubarska, M Lohfink, E Love, C Mariscal, C Lu, L Lucarelli, F Ludwig, A Luszczak, W Lyu, Y Ma, W Madsen, J Mahn, K Makino, Y Mancina, S Sainte, W Mariş, I Marka, S Marka, Z Marsee, M Martinez-Soler, I Maruyama, R McElroy, T McNally, F Mead, J Meagher, K Mechbal, S Medina, A Meier, M Meighen-Berger, S Merckx, Y Micallef, J Mockler, D Montaruli, T Moore, R Morse, R Moulai, M Mukherjee, T Naab, R Nagai, R Naumann, U Nayerhoda, A Necker, J Neumann, M Niederhausen, H Nisa, M Noell, A Nowicki, S Pollmann, A Oehler, M Oeyen, B Olivas, A Orsoe, R Osborn, J O'Sullivan, E Pandya, H Pankova, D Park, N Parker, G Paudel, E Paul, L Heros, C Peters, L Peterson, J Philippen, S Pieper, S Pizzuto, A Plum, M Popovych, Y Porcelli, A Rodriguez, M Pries, B Procter-Murphy, R Przybylski, G Raab, C Rack-Helleis, J Rameez, M Rawlins, K Rechav, Z Rehman, A Reichherzer, P Renzi, G Resconi, E Reusch, S Rhode, W Richman, M Riedel, B Roberts, E Robertson, S Rodan, S Roellinghoff, G Rongen, M Rott, C Ruhe, T Ruohan, L Ryckbosch, D Cantu, D Safa, I Saffer, J Salazar-Gallegos, D Sampathkumar, P Herrera, S Sandrock, A Santander, M Sarkar, S Savelberg, J Schaufel, M Schieler, H Schindler, S Schlueter, B Schmidt, T Schneider, J Schröder, F Schumacher, L Schwefer, G Sclafani, S Seunarine, S Sharma, A Shefali, S Shimizu, N Silva, M Skrzypek, B Smithers, B Snihur, R Soedingrekso, J Søgaard, A Soldin, D Spannfellner, C Spiczak, G Spiering, C Stamatikos, M Stanev, T Stein, R Stezelberger, T Stürwald, T Stuttard, T Sullivan, G Taboada, I Ter-Antonyan, S Thompson, W Thwaites, J Tilav, S Tollefson, K Tönnis, C Toscano, S Tosi, D Trettin, A Tung, C Turcotte, R Twagirayezu, J Ty, B Elorrieta, M Upshaw, K Valtonen-Mattila, N Vandenbroucke, J van Eijndhoven, N Vannerom, D van Santen, J Vara, J Veitch-Michaelis, J Verpoest, S Veske, D Walck, C Wang, W Watson, T Weaver, C Weigel, P Weindl, A Weldert, J Wendt, C Werthebach, J Weyrauch, M Whitehorn, N Wiebusch, C Willey, N Williams, D Wolf, M Wrede, G Wulff, J Xu, X Yanez, J Yildizci, E Yoshida, S Yu, S Yuan, T Zhang, Z Zhelnin, P (10 Oct 2022)

Friendsgiving Dinner

Whether you have loved ones visiting from abroad or are looking to catch up with your nearest and dearest, Thanksgiving (Friendsgiving in Canada in October so we are merging the two) on 24th November is a time for friends to come together. Book your Thanksgiving celebration at The Alice and enjoy the delicious three-course Thanksgiving menu.

Help close the gap

Researchers at the Department of Education are inviting doctoral students from the University of Oxford who are of Black-British, British-Pakistani or British-Bangladeshi background, OR who identify as belonging to an under-represented group in higher education, to take part in a research interview in support of “Close the Gap: Fair Admissions in Postgraduate Research”.

Welcome

Diana Yatsyshyn joined Academic Administration this week as MSc Course Administrator. You'll find Diana in S0.16.

Existence of radial global smooth solutions to the pressureless
Euler-Poisson equations with quadratic confinement
 Carrillo, J Shu, R Archive for Rational Mechanics and Analysis
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