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PRODID:researchseminars.org
CALSCALE:GREGORIAN
X-WR-CALNAME:researchseminars.org
BEGIN:VEVENT
SUMMARY:Anna Balci (Charles University)
DTSTART;VALUE=DATE-TIME:20240103T080000Z
DTEND;VALUE=DATE-TIME:20240103T090000Z
DTSTAMP;VALUE=DATE-TIME:20241013T131833Z
UID:MathMAC/1
DESCRIPTION:Title: Numerical approximation of variational problems with general and or
thotropic growth\nby Anna Balci (Charles University) as part of Modell
ing of materials - theory\, model reduction and efficient numerical method
s (UNCE MathMAC)\n\nAbstract: TBA\n
LOCATION:https://master.researchseminars.org/talk/MathMAC/1/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Christoph Allolio (Charles University)
DTSTART;VALUE=DATE-TIME:20240110T080000Z
DTEND;VALUE=DATE-TIME:20240110T090000Z
DTSTAMP;VALUE=DATE-TIME:20241013T131833Z
UID:MathMAC/2
DESCRIPTION:Title: Modeling Biomembranes and Organelles: Consequences of Molecular Spe
cificity\nby Christoph Allolio (Charles University) as part of Modelli
ng of materials - theory\, model reduction and efficient numerical methods
(UNCE MathMAC)\n\nAbstract: TBA\n
LOCATION:https://master.researchseminars.org/talk/MathMAC/2/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Petr Šácha (Charles University)
DTSTART;VALUE=DATE-TIME:20240221T080000Z
DTEND;VALUE=DATE-TIME:20240221T090000Z
DTSTAMP;VALUE=DATE-TIME:20241013T131833Z
UID:MathMAC/3
DESCRIPTION:Title: Numerical experiments and climate model development efforts in the
Gravity wave research group at KFA MFF UK\nby Petr Šácha (Charles Un
iversity) as part of Modelling of materials - theory\, model reduction and
efficient numerical methods (UNCE MathMAC)\n\nAbstract: TBA\n
LOCATION:https://master.researchseminars.org/talk/MathMAC/3/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Jan Blechta (Charles University)
DTSTART;VALUE=DATE-TIME:20240228T080000Z
DTEND;VALUE=DATE-TIME:20240228T090000Z
DTSTAMP;VALUE=DATE-TIME:20241013T131833Z
UID:MathMAC/4
DESCRIPTION:Title: Divergence-preserving methods for incompressible flow\nby Jan B
lechta (Charles University) as part of Modelling of materials - theory\, m
odel reduction and efficient numerical methods (UNCE MathMAC)\n\nAbstract:
TBA\n
LOCATION:https://master.researchseminars.org/talk/MathMAC/4/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Alena Jarolímová (Charles University)
DTSTART;VALUE=DATE-TIME:20240306T080000Z
DTEND;VALUE=DATE-TIME:20240306T090000Z
DTSTAMP;VALUE=DATE-TIME:20241013T131833Z
UID:MathMAC/5
DESCRIPTION:Title: Determination of Navier's slip parameter and the inflow velocity us
ing variational data assimilation\nby Alena Jarolímová (Charles Univ
ersity) as part of Modelling of materials - theory\, model reduction and e
fficient numerical methods (UNCE MathMAC)\n\nAbstract: TBA\n
LOCATION:https://master.researchseminars.org/talk/MathMAC/5/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Martin Čížek (Charles University)
DTSTART;VALUE=DATE-TIME:20240313T080000Z
DTEND;VALUE=DATE-TIME:20240313T090000Z
DTSTAMP;VALUE=DATE-TIME:20241013T131833Z
UID:MathMAC/6
DESCRIPTION:Title: Equations behind inelastic low-energy electron collisions with smal
l molecules\nby Martin Čížek (Charles University) as part of Modell
ing of materials - theory\, model reduction and efficient numerical method
s (UNCE MathMAC)\n\nAbstract: TBA\n
LOCATION:https://master.researchseminars.org/talk/MathMAC/6/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Ondřej Souček (Charles University)
DTSTART;VALUE=DATE-TIME:20240320T080000Z
DTEND;VALUE=DATE-TIME:20240320T090000Z
DTSTAMP;VALUE=DATE-TIME:20241013T131833Z
UID:MathMAC/7
DESCRIPTION:Title: Variations in plume activity unveiling the dynamics of water-filled
faults on Enceladus\nby Ondřej Souček (Charles University) as part
of Modelling of materials - theory\, model reduction and efficient numeric
al methods (UNCE MathMAC)\n\nAbstract: TBA\n
LOCATION:https://master.researchseminars.org/talk/MathMAC/7/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Jakub Fara (Charles University)
DTSTART;VALUE=DATE-TIME:20240327T080000Z
DTEND;VALUE=DATE-TIME:20240327T090000Z
DTSTAMP;VALUE=DATE-TIME:20241013T131833Z
UID:MathMAC/8
DESCRIPTION:Title: Beyond the edge of the ALE method: Simulation of Rebound\nby Ja
kub Fara (Charles University) as part of Modelling of materials - theory\,
model reduction and efficient numerical methods (UNCE MathMAC)\n\nAbstrac
t: TBA\n
LOCATION:https://master.researchseminars.org/talk/MathMAC/8/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Alexander Wilkie (Charles University)
DTSTART;VALUE=DATE-TIME:20240403T070000Z
DTEND;VALUE=DATE-TIME:20240403T080000Z
DTSTAMP;VALUE=DATE-TIME:20241013T131833Z
UID:MathMAC/9
DESCRIPTION:Title: Realistic appearance modelling for movie VFX and 3D print applicati
ons\nby Alexander Wilkie (Charles University) as part of Modelling of
materials - theory\, model reduction and efficient numerical methods (UNCE
MathMAC)\n\nAbstract: TBA\n
LOCATION:https://master.researchseminars.org/talk/MathMAC/9/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Alex Kaltenbach (TU Berlin)
DTSTART;VALUE=DATE-TIME:20240410T070000Z
DTEND;VALUE=DATE-TIME:20240410T080000Z
DTSTAMP;VALUE=DATE-TIME:20241013T131833Z
UID:MathMAC/10
DESCRIPTION:Title: Aposteriori error control for variational problems via convex dual
ity\, explicit flux reconstruction\, and applications\nby Alex Kaltenb
ach (TU Berlin) as part of Modelling of materials - theory\, model reducti
on and efficient numerical methods (UNCE MathMAC)\n\nAbstract: TBA\n
LOCATION:https://master.researchseminars.org/talk/MathMAC/10/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Erin Carson (Charles University)
DTSTART;VALUE=DATE-TIME:20240424T070000Z
DTEND;VALUE=DATE-TIME:20240424T080000Z
DTSTAMP;VALUE=DATE-TIME:20241013T131833Z
UID:MathMAC/11
DESCRIPTION:Title: Balancing Inexactness in Matrix Computations\nby Erin Carson (
Charles University) as part of Modelling of materials - theory\, model red
uction and efficient numerical methods (UNCE MathMAC)\n\n\nAbstract\nOn su
percomputers that exist today\, achieving even close to the peak performan
ce is incredibly difficult if not impossible for many applications. Techni
ques designed to improve the performance of matrix computations- making co
mputations less expensive by reorganizing an algorithm\, making intentiona
l approximations\, and using lower precision- all introduce what we can ge
nerally call “inexactness”. The questions to ask are then:\n1. With al
l these various sources of inexactness involved\, does a given algorithm s
till get close enough to the right answer?\n2. Given a user constraint on
required accuracy\, how can we best exploit and balance different types of
inexactness to improve performance?\nStudying the combination of differen
t sources of inexactness can thus reveal not only limitations\, but also n
ew opportunities for developing algorithms for matrix computations that ar
e both fast and provably accurate. We present few recent results toward th
is goal\, involving mixed precision randomized decompositions and mixed pr
ecision sparse approximate inverse preconditioners.\n
LOCATION:https://master.researchseminars.org/talk/MathMAC/11/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Jan Vybíral (Czech Technical University\, Faculty of Nuclear Scie
nces and Physical Engineering)
DTSTART;VALUE=DATE-TIME:20240417T070000Z
DTEND;VALUE=DATE-TIME:20240417T080000Z
DTSTAMP;VALUE=DATE-TIME:20241013T131833Z
UID:MathMAC/12
DESCRIPTION:Title: Lower bounds in numerical mathematics\nby Jan Vybíral (Czech
Technical University\, Faculty of Nuclear Sciences and Physical Engineerin
g) as part of Modelling of materials - theory\, model reduction and effici
ent numerical methods (UNCE MathMAC)\n\n\nAbstract\nIn the analysis of alg
orithms\, there is usually a big difference between upper and lower bounds
. Upper bounds (on the running time\, memory used or necessary input infor
mation) is usually achieved by a construction of an efficient algorithm. O
n the other hand\, lower bounds show that the construction of better and b
etter algorithms has some natural limits. We study lower bounds on the amo
unt of input information needed for algorithms in numerical analysis. The
problems discussed include numerical integration\, signal processing\, and
discrete geometry. Naturally\, we encounter connections to functional ana
lysis\, probability\, and combinatorics.\n
LOCATION:https://master.researchseminars.org/talk/MathMAC/12/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Carola Bibiane Schönlieb (Department of Applied Mathematics and T
heoretical Physics\, University of Cambridge)
DTSTART;VALUE=DATE-TIME:20240906T120000Z
DTEND;VALUE=DATE-TIME:20240906T130000Z
DTSTAMP;VALUE=DATE-TIME:20241013T131833Z
UID:MathMAC/13
DESCRIPTION:Title: Mathematical imaging: From geometric PDEs and variational modellin
g to deep learning for images\nby Carola Bibiane Schönlieb (Departmen
t of Applied Mathematics and Theoretical Physics\, University of Cambridge
) as part of Modelling of materials - theory\, model reduction and efficie
nt numerical methods (UNCE MathMAC)\n\n\nAbstract\nImages are a rich sourc
e of beautiful mathematical formalism and analysis. Associated mathematica
l problems arise in functional and non-smooth analysis\, the theory and nu
merical analysis of nonlinear partial differential equations\, inverse pro
blems\, harmonic\, stochastic and statistical analysis\, and optimisation.
In this talk we will learn about some of these mathematical problems\, ab
out variational models and PDEs for image analysis and inverse imaging pro
blems as well as recent advances where such mathematical models are comple
mented and replaced by deep neural networks. The talk is furnished with ap
plications to art restoration\, forest conservation and cancer research.\n
LOCATION:https://master.researchseminars.org/talk/MathMAC/13/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Vít Průša (Mathematical Institute\, Faculty of Mathematics and
Physics\, Charles University)
DTSTART;VALUE=DATE-TIME:20241002T070000Z
DTEND;VALUE=DATE-TIME:20241002T080000Z
DTSTAMP;VALUE=DATE-TIME:20241013T131833Z
UID:MathMAC/14
DESCRIPTION:Title: Negative thoughts on negative mass\nby Vít Průša (Mathemati
cal Institute\, Faculty of Mathematics and Physics\, Charles University) a
s part of Modelling of materials - theory\, model reduction and efficient
numerical methods (UNCE MathMAC)\n\n\nAbstract\nThe concept of effective m
ass is frequently used for simplification of complex models. It i claimed
that in the case of wave transmission analysis of some metamaterials the c
orresponding effective mass can be frequency dependent\, negative and it m
ay not even be a scalar quantity. These findings have even led some author
s to suggest that Newton's second law needs to be modified within the cont
ext of classical continuum mechanics. While there is nothing wrong with th
e mathematical procedures used to reach these conclusions\, the accompanyi
ng physical interpretation thereof is absurd. We show that the puzzling co
ncept of negative mass can be easily eliminated provided that we model the
corresponding metamaterials using an effective constitutive relation. The
effective constitutive relation is a rate-type constitutive relation\, an
d the simple models we study give a clue how to design a non-trivial effec
tive rate-type constitutive relation that is conservative\, that is\, poss
essing an associated conserved energy depending on the force/stress and it
s time derivatives. In short\, the rate-type constitutive relations obtain
ed in our study might be seen as a revival of hypoelastic materials.\n
LOCATION:https://master.researchseminars.org/talk/MathMAC/14/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Michal Outrata
DTSTART;VALUE=DATE-TIME:20241009T070000Z
DTEND;VALUE=DATE-TIME:20241009T080000Z
DTSTAMP;VALUE=DATE-TIME:20241013T131833Z
UID:MathMAC/15
DESCRIPTION:Title: Domain Truncation\, Absorbing Boundary Conditions\, Schur Compleme
nts\, and Padé Approximation\nby Michal Outrata as part of Modelling
of materials - theory\, model reduction and efficient numerical methods (U
NCE MathMAC)\n\nAbstract: TBA\n
LOCATION:https://master.researchseminars.org/talk/MathMAC/15/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Michal Bathory
DTSTART;VALUE=DATE-TIME:20241016T070000Z
DTEND;VALUE=DATE-TIME:20241016T080000Z
DTSTAMP;VALUE=DATE-TIME:20241013T131833Z
UID:MathMAC/16
DESCRIPTION:Title: Relative energy inequality for viscoelastic fluid models with appl
ications to stability\nby Michal Bathory as part of Modelling of mater
ials - theory\, model reduction and efficient numerical methods (UNCE Math
MAC)\n\nAbstract: TBA\n
LOCATION:https://master.researchseminars.org/talk/MathMAC/16/
END:VEVENT
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