CONFERENCES

INTERNATIONAL CONFERENCES

• Spectral analysis and numerical methods for fractional diffusion equations, Numerical Linear Algebra with Applications, CIRM Luminy, October, 2016.
   

• Regularization preconditioners for frame-based deconvolution, OIP 2016, Modena, September 2016.
   

• Spectral analysis and structure preserving preconditioners for Fractional Diffusion Equations, Structured Matrix Computations with Applications, TSIMF, Sanya, March, 2016.
   

• Fast nonstationary preconditioned iterative methods for ill-posed problems, with application to image deblurring, GAMM 86th Annual Scientific Conference, Lecce, Italy, March 2015.
   

• Fast nonstationary preconditioned iterative methods for ill-posed problems, with application to image deblurring, SLA 2014 Kalamata, Greece, September 2014.
   

• Fast nonstationary preconditioned iterative methods for ill-posed problems, with application to image deblurring, SIAM-IS14 - SIAM Conference on IMAGING SCIENCE, Hong Kong Baptist University, Hong Kong, May 2014.
   

• Multigrid preconditioning for nonlinear (degenerate) parabolic equations with application to monument degradation, ENUMATH 2013, Lausanne, Switzerland, August 2013.
   

• An iterated Tikhonov Thresholding algorithm for image deblurring, Optimization Techniques for Inverse Problems II, Modena, Italy, September 2012.
   

• Arnoldi methods for image deblurring with nonsymmetric blur and anti-reflective boundary conditions, Structured Numerical Linear and Multilinear Algebra Problems Analysis, Algorithms, and Applications, K.U.Leuven, Belgium, September 2012.
   

• Approximated nonstationary iterated Tikhonov with application to image deblurring, Congresso SIMAI 2012, Torino, Italy, June 2012.
   

• Approximated nonstationary iterated Tikhonov with application to image deblurring, SIAM Conference on Applied Linear Algebra 2012, Valencia, Spain, June 2012.
   

• An iterative multigrid regularization method for deblurring problems, International Conference on Scientific Computing - SC2011, S. Margherita di Pula, Sardegna, Italia, October 2011.
   

• Square regularization matrices for large linear discrete ill-posed problems, Foundations of Computational Mathematics FoCM'11, Budapest, Hungary, July 2011.
   

• Square smoothing operators imposing accurate boundary conditions, Householder Symposium XVIII, Granlibakken Conference Center & Lodge in Tahoe City, California, USA, June 2011.
   

• Grid transfer operators for multigrid methods, GAMM 82^nd annual meeting, Graz, Austria, April 2011.
   

• An iterative multilevel regularization method for deblurring problems, European Multi-Grid Conference EMG 2010, Isola d'Ischia, Italia, September 2010.
   

• Symbol approach (for structured matrices) in multigrid with applications in imaging, (Plenary lecture) European Multi-Grid Conference EMG 2010, Isola d'Ischia, Italia, September 2010.
   

• Images deblurring by filtering and antireflective boundary conditions, Inverse Problems, Computation, and Applications (IPCA), CIRM Luminy, France, June 2010.
   

• Image deblurring with high order boundary conditions AIP 2009, Vienna, Austria, July 2009.
   

• Images deblurring by filtering and antireflective boundary conditions ENUMATH 2009, Uppsala, Sweden, June 2009.
   

• An algebraic generalization of the local Fourier analysis, 14th Copper Mountain Conference on Multigrid Methods, Copper Mountain, Colorado, USA, March 2009.
   

• The Antireflective algebra and applications, Structured Linear Algebra Problems: Analysis, Algorithms, and Applications, Cortona, Italy, September 2008.
   

• The Antireflective algebra with applications to image deblurring, Householder Symposium XVII, Zeuthen, Germany, June 2008.
   

• Multilevel regularization for image deblurring problems, 6^th International Congress on Industrial and Applied Mathematics, Zurich, Switzerland, July 2007.
   

• Regularization by multigrid-type algorithms, Numerical Linear Algebra in Signals and Systems Hotel porto Giardino, Monopoli (Bari), Italy, September 2006.
   

• Image restoration with anti-reflective boundary conditions and re-blurring (poster: 2^nd prize section 16), International Congress of Mathematicians, Madrid, Spain, August 2006.
   

• Regularization by multigrid-type algorithms, Joint GAMM-SIAM Conference on Applied Linear Algebra, Düsseldorf, Germany, July 2006.
   

• Matrix structures and image restoration: boundary conditions and re-blurring , The 2^nd International Conference on Structured Matrices, Hong Kong, Baptist University, June 2006.
   

• Filter factor analysis of an iterative multilevel regularizing method, 9th Copper Mountain Conference on Iterative Methods, Copper Mountain, Denver (CO), USA, April 2006.
   

• Image deblurring with Multigrid Methods, 8th European Multigrid Conference on Multigrid, Multilevel and Multiscale Methods, Scheveningen The Hague, Netherlands, September 2005.
   

• On the regularizing power of multigrid-type algorithms, lecture at the summer school Structured Numerical Linear Algebra Problems: Alghoritms and Applications, Porto Giardino, Monopoli (BA),  Italy, September 2005.
   

• Anti-reflective boundary conditions, re-blurring and fast de-blurring methods (poster), Numerical Analysis: the State of the Art, Rende (CS), May 2005.
   

• On the regularizing power of multigrid-type algorithms, Structured Numerical Linear Algebra Problems: Alghoritms and Applications, Cortona,  Italy, September 2004.
   

• A Multigrid method for image restoration with Tikhonov regularization, International Workshop in Numerical Linear Algebra and its Applications, Monopoli (BA),  Italy, September 2003.
   

• A Multigrid method for restoration of images with Dirichlet boundary conditions, SPIE's 48th Annual Meeting San Diego, CA USA, August 2003.
   

ITALIAN CONFERENCES

• Regularization preconditioners for frame-based deconvolution, SIMAI 2016, Milano, Settembre 2016.
   

• Regularization preconditioners for frame-based deconvolution, PING - Inverse Problems in Geophysics, Firenze, Aprile 2016.
   

• Fast nonstationary preconditioned iterative methods for ill-posed problems, with application to image deblurring, Firenze, Aprile 2015.
   

• An iterative multigrid regularization method for deblurring problems, Algebra Lineare Numerica e Applicazioni, Roma Tor Vergata, January 2013.
   

• Total Variation Deblurring Without Boundary Artifacts, Numerical aspects of hyperbolic balance laws and related problems, Milano, September 2013.
   

• Approximated nonstationary iterated Tikhonov with application to image deblurring, Due Giorni di Algebra Lineare Numerica, Genova, February 2012.
   

• Operatori di aggregazione per metodi multigrid, XIX Congresso dell'Unione Matematica Italiana, Bologna, September 2011.
   

• Square regularization matrices for large linear discrete ill-posed problems, Algebra Lineare Numerica nei Problemi Inversi, Como, March 2011.
   

• Grid transfer operators for multigrid methods, Due giorni di Algebra Lineare Numerica, Bologna, Marzo 2008.
   

• L'algebra Antiriflettente con applicazioni alla ricostruzione di immagini, XVIII Congresso Unione Matematica Italiana, Bari, Settembre 2007.
   

• Ricostruzione di immagini con condizioni al contorno anti-riflettenti e metodi multigrid, Convegno GNCS, Milano, Febbraio 2006.
   

• Proprietà regolarizzanti dei metodi Multigrid (costo computazionale e vincolo di non negatività), Giornate di Algebra Lineare Numerica e Applicazioni, Villa Toeplitz - Varese, Febbraio 2005.
   

• Regolarizzazione multigrid per la ricostruzione di immagini (idee principali), Due giorni di Algebra Lineare Numerica e Applicazioni, Udine, Gennaio 2004.
   

• Ricostruzione di immagini sfuocate con condizioni al contorno ``antiriflettenti'', XVII Congresso Unione Matematica Italiana, Milano, Settembre 2003.