[Dottorcomp] Insalate di matematica -- U.Bosisio 13/05/2026

[Insalate Di Matematica]

Dear all,

We remind you *today*'s appointment of the series of seminars "Insalate di
Matematica".
Here are the details:

*Speaker*: *Urmila Bosisio *(University of Milano)

*Date and time*: *13/05/2026, 4:45 pm*

*Title*: "Adaptive approximation of functions using trees"

*Abstract*: The main focus of the seminar will be the study of instance
optimal algorithms for the adaptive approximation of functions, closely
related to applications in adaptive finite element methods. The approach we
shall focus on bases on organizing the degrees of freedom (DOFs)
in trees, following Binev and DeVore (2004). A key ingredient of such
algorithms is the so-called marking strategy which,
with the help of local quantities called marking indicators, decides where
to introduce
new DOFs. These marking indicators are based on local errors, which in
applications are
subadditive or, more general, stable. The aim of the seminar is to briefly
describe the state of the art, to expand the known literature in the stable
case and to propose a new type of marking indicator, proving that it leads
to instance optimality.

*Keywords:* Adaptive approximation, trees, DOF

*Information to attend in person*
The seminar will take place at the building U9-Koinè, Università degli
Studi di Milano Bicocca; room U9-09.


*Information to attend online*
https://unimib.webex.com/unimib/j.php?MTID=m101728a0c0258813b6aa97783fb11fad
(password:
insalate, 46725283 from phones)
<https://unimib.webex.com/unimib/j.php?MTID=m3c536ba5a33f71bb9d6a3bc9b00992ad>

For further information, please visit our website:
https://sites.google.com/view/insalate-di-matematica or contact us at
insalate.matematica a unimib.it. Find us also on our Instagram page:
https://www.instagram.com/insalate.di.matematica/
<https://www.instagram.com/insalate_di_matematica24/>

The organizers: Jessica Anzanello, Anna Donadini, Julian Feuerpfeil,
Kirubell Haile, Salvatore Lincastri, Paolo Malanchini, Marialetizia
Mosconi, Claudia Nocita, Eleonora Sforza, Filippo Valnegri.
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