Name: Due Giorni di Algebra Lineare Numerica e Applicazioni
Start: 2025-01-20T08:30:00+01:00
End: 2025-01-21T22:00:00+01:00
Location: Aula Magna "Fratelli Pontecorvo", Building E, Polo Fibonacci. Pisa

Due Giorni di Algebra Lineare Numerica e Applicazioni

from Monday 20 January 2025 (08:30) to Tuesday 21 January 2025 (22:00)

Monday 20 January 2025

08:30 Registration
Registration
08:30 - 08:50
Room: Building E

08:50 Opening: Opening
Opening
08:50 - 09:00
Room: Building E
09:00 Morning Session I: Morning Session I
Morning Session I
09:00 - 10:40
Room: Building E
Contributions

09:00 Lanczos with compression for symmetric matrix functions - Igor Simunec (École Polytechnique Fédérale de Lausanne)

09:20 Estimation of spectral gaps for sparse symmetric matrices - Michele Rinelli (KU Leuven)

09:40 Inverse eigenvalue problem linked to multiple orthogonal polynomials - Robbe Vermeiren (KU Leuven)

10:00 DeepONet-based approximation of inverse operators: A data-driven approach to address the low-frequency part of the eigenspectrum - Caterina Millevoi (University of Padova)

10:20 Preconditioning Strategies for Generalized Krylov Subspace Methods for $\ell_p-\ell_q$ Minimization - Marco Ratto (Università degli studi dell'Insubria)
10:40 Coffee Break
Coffee Break
10:40 - 11:10
Room: Building E
11:10 Morning Session II: Morning Session II
Morning Session II
11:10 - 12:30
Room: Building E
Contributions

11:10 Cross-eyed preconditioning for normal equations arising from PDEs - Umberto Zerbinati (University of Oxford)

11:30 Matrix-oriented discretisations of phase-field and high-order diffusion problems - Massimo Frittelli (University of Salento, Department of Mathematics and Physics "E. De Giorgi")

11:50 Scalable approximation and solvers for ionic electrodiffusion in cellular geometries - Pietro Benedusi

12:10 Blocking structures, approximation, and preconditioning - Valerio Loi (Università degli studi dell'Insubria)
12:30 Lunch Break
Lunch Break
12:30 - 13:50
Room: Building E

13:50 Poster Blitz: Poster Blitz
Poster Blitz
13:50 - 14:20
Room: Building E
14:20 Afternoon Session I: Afternoon Session I
Afternoon Session I
14:20 - 16:00
Room: Building E
Contributions

14:20 Preconditioned Low-Rank Riemannian Optimization for Symmetric Positive Definite Linear Matrix Equations - Ivan Bioli (Università di Pavia)

14:40 Tensor-Oriented LSQR for Tensor Least Squares Problems - Lorenzo Piccinini (Università di Bologna)

15:00 Randomized algorithms for streaming low-rank approximation in tree tensor network format - Gianfranco Verzella (University of Geneva)

15:20 Riemann-Oracle: a general-purpose Riemannian optimizer to solve nearness problems in matrix theory - Miryam Gnazzo (Gran Sasso Science Institute)

15:40 Inexact alternating projection methods with application to matrix completion - Mattia Silei (University of Florence)
16:00 Poster Session: Poster
Poster
16:00 - 18:00
Room: Building E
Contributions

16:00 DEIM-based hyper-reduction of metriplectic systems - Andrea Benvenuti (Università di Pisa)

16:00 Lanczos with compression for symmetric eigenvalue problems - Angelo Alberto Casulli (Gran Sasso Science Institute)

16:00 Lanczos with compression for symmetric Lyapunov equations - Francesco Hrobat (Scuola Normale Superiore)

16:00 Higher Order Data Completion for Undersampled Raster Scans in Spectromicroscopy - Silvia Gazzola

16:00 Randomized sketched TT-GMRES for linear systems with tensor structure - Alberto Bucci (Charles University)

16:00 SCALAR POLYNOMIAL ZERO BOUNDS FROM MATRIX POLYNOMIALS - Aaron Melman (Santa Clara University)

16:00 Anti-Gauss cubature rules with applications to Fredholm integral equations on the square - Luisa Fermo (University of Cagliari)

16:00 Randomized Schatten norm estimation - Alice Cortinovis (Università di Pisa)

16:00 On the highly entrywise accurate methods for solution of multilinear PageRank problem - Mehdi Najafi Kalyani (Dipartimento di Informatica, Università di Pisa, Pisa, Italy)

16:00 Minimum-norm solutions of the non-symmetric semidefinite Procrustes problem - Stefano Sicilia (Gran Sasso Science Institute)

16:00 The Joint Spectral Radius of Neural Networks - Piero Deidda (Scuola Normale Superiore, Pisa - Gran Sasso Science Institute, L'Aquila)

16:00 Mittag-Leffler Communicability Distance and shortest geodesics on networks - Nikita Deniskin (Scuola Normale Superiore)

16:00 Linear FDEM data inversion via Landweber interations in Banach spaces - Patricia Diaz de Alba (University of Salerno)

16:00 Geometric means of more than two matrix sequences in the case of hidden (asymptotic) structures - Muhammad Faisal Khan

16:00 Revisiting the notion of approximating class of sequences for handling approximated PDEs on moving or unbounded domains - Andrea Adriani (University of Roma Tor Vergata)

16:00 Approximation properties of neural ODEs - Arturo De Marinis (Gran Sasso Science Institute)

16:00 Quadratic projectable Runge--Kutta methods - Milo Viviani (Scuola Normale Superiore)

16:00 PSCToolkit: Bringing Linear Algebra to the Exascale - Fabio Durastante (Università di Pisa)

16:00 Iterated $\ell^2-\ell^q$ regularization - Alessandro Buccini (University of Cagliari)
20:00 Social Dinner
Social Dinner
20:00 - 22:00
Tuesday 21 January 2025
09:00 Morning Session III: Morning Session III
Morning Session III
09:00 - 10:40
Room: Building E
Contributions

09:00 Modelling advection on distance-weighted directed networks - Francesco Zigliotto (Scuola Normale di Pisa)

09:20 Explicit Characterization of Consensus in a Distributed Estimation Problem on Chain Graphs - Cristiano Maria Verrelli (University of Rome Tor Vergata, Electronic Engineering Department)

09:40 Walk-induced strategies for updating Katz centrality in simple graphs - Alessandro Filippo (University of Rome Tor Vergata)

10:00 Generalized approximating class of sequences and asymptotic block structures with rectangular Toeplitz blocks. - Alec Jacopo Almo Schiavoni Piazza (SISSA)

10:20 Eigenvalues and singular values of variable Toeplitz matrices and matrix-sequences, with application to variable two-step BDF approximations to parabolic equations - NIKOS BARAKITIS (University of Insubria)
10:40 Coffee Break
Coffee Break
10:40 - 11:10
Room: Building E
11:10 Morning Session IV: Morning Session IV
Morning Session IV
11:10 - 12:50
Room: Building E
Contributions

11:10 Randomized Gauss-Newton methods for large scale nonlinear least-squares - Benedetta Morini (Università di Firenze)

11:30 Row-aware Randomized SVD with applications - Sascha Portaro (University of Bologna)

11:50 A Deep-QLP Decomposition Algorithm and Applications - Cristiano Tamborrino (Università degli Studi di Bari)

12:10 Extracting accurate singular values from approximate subspaces - Lorenzo Lazzarino (University of Oxford)

12:30 The Perron-Frobenius theory for matrix semigroups: a geometrical approach - Vladimir Protasov (University of L’Aquila)
12:50 Lunch Break
Lunch Break
12:50 - 14:20
Room: Building E
14:20 Afternoon Session II: Afternoon Session II
Afternoon Session II
14:20 - 16:20
Room: Building E
Contributions

14:20 Provably convergent, extrapolated algorithms for Nonlinear Matrix Decomposition problems - Giovanni Seraghiti (Unifi/Umons)

14:40 An Augmented Lagrangian preconditioner for the control of the Navier--Stokes equations - Santolo Leveque (University of Houston)

15:00 On the ideality of real-world datasets for photometric stereo under unknown lights position - Federica Pes (Università di Cagliari)

15:20 Fractional Laplacian and ADMM for glyph extraction - Andrea Azzarelli (University of Cagliari)

15:40 RandONets: Shallow networks with random projections for learning nonlinear operators - Constantinos Siettos (Università degli Studi di Napoli Federico II)

16:00 Efficient Regularization and Numerical Reconstruction Methods for Inverse Source Problems in Generalized Diffusion Equation - Asim Ilyas (University of Insubria)
16:20 Closing Remarks
Closing Remarks
16:20 - 16:40
Room: Building E

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