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Publications

Bozzini Tugomira
Bozzini M., Rossini M., Approximating Surfaces with Discontinuities. In Proceedings of the International Conference on Imaging Science, System and Technology, H. Arabnia (ed.) CSREA Press (1998) 351-357.
Bozzini M., Rossini M., Approximating surfaces with discontinuities. Mathematical and Computer Modelling 31 issue 6/7 (2000) 193-216.
Bozzini M., Rossini M., On a Method of Numerical Differentiation. In Curve and Surface Fitting: Saint-Malo 1999, Albert Cohen, Christophe Rabut, and Larry L. Schumaker (eds.) Vanderbilt University Press, Nashville, TN (2000) 85-94.
Bozzini M., Rossini M., Numerical differentiation of two-dimensional functions from noisy data. To appear on Computers & Mathematics with Applications, Special Issue on Numerical Methods in Physics, Chemistry and Engineering.
Bozzini M., L. Lenarduzzi,M. Rossini and R. Schaback, Interpolation by basis functions of different scales and shapes. Preprint, 2000.
Bozzini M. and L. Lenarduzzi, Selection of data and interpolation by multiquadrics translates with different elliptical shapes. Quaderno IAMI 00.22.
Bozzini M., L. Lenarduzzi and R. Schaback, Adaptive interpolation by scaled multiquadrics. To appear on Advances in Computational Mathematics.
Bozzini M. and M. Rossini, Testing methods for 3D scattered data interpolation. Preprint, 2001.

Calogero Andrea
Calogero A. and Garrigós G., A caracterization of wavelet families arising from biorthogonal MRA's of multiplicity d, J. Geom. Anal., to appear.
A. Calogero, Wavelets on general lattices, associated with general expanding maps of  $R^n$, Elettr. Res. Ann. of Amer. Math. Soc., Vol. 5, pages 1-10, (1999)
A. Calogero, A characterization of wavelets on general lattice, Journal of Geometric Analysis, to appear.
A. Calogero, A characterization of scaling functions of multiresolution analysis, preprint.

Cazzola Marina
Cazzola M. and Di Martino L., $(2,3)$-generation of $PSp(4,q)$, $q=p^n$, $p\ne 2,3$, Results in Mathematics, 23(1993), 221--232.
Cazzola M., Partial character degrees and length of soluble groups: The case of a $A$-group,, to appear in Rendiconti Istituto Lombardo di Scienze e Lettere.
Cazzola M., Orbit sizes of a finite soluble group, to appear in Rendiconti Istituto Lombardo di Scienze e Lettere.
Cazzola M., Partial character degrees and length of soluble groups: the $p$-length $1$ case, to appear in Communications in Algebra.

Cellina Arrigo
Cellina A., Minimizing a functional depending on Grad(u) and un u, Annales H Poincare', Anal. Non Lin., 14  (1997), 339-352.
Celada P. and Cellina A., Existence and nonexistence of a solution to a variational problem on a square, Houston J. Math., 24 (1998), 345-375.
Cellina A. and Perrotta S.,, On the validity of the Pontriagyn Maximum Principle and of the Euler Lagrange equation for a functional depending on the gradient, SIAM  J. Control and Optimization, to appear.
Cellina A. and Vornicescu M., On gradient flows, J. Diff. Eq. 145 (1988), 489-501.
Cellina A., On the validity of the Euler Lagrange equation.
Cellina A., On the bounded slope condition and the validity of the Euler Lagrange equation.
Cellina A. On the strong maximum principle.

Colzani Leonardo
Colzani L., Approximation of Lebesgue integrals by Riemann sums and lattice points in domains with fractal boundaries, Monatshefte Math. 123 (1997), 299-308.
Brandolini L., Colzani L. and Travaglini G., Average decay of Fourier transforms and integer points in polyhedra. Ark. f. Mat. 35 (1997), 253-275.
Colzani, L. and Sjögren P., Translation-invariant operators on Lorentz spaces L(1,q) with 0<q<1, Studia Math.132 (1999), 101-124.
Brandolini L., Colzani L., Localization and convergence of eigenfunction expansions, J. Fourier Anal. Appl. 5 (1999), 431-447.
Brandolini L., Colzani L., Decay of Fourier transforms and summability of eigenfunction expansions, Annali Scuola normale Superiore Pisa 29 (2000), 611-638
Brandolini L., Colzani, A. Torlaschi., Mean square decay of Fourier Transforms in Euclidean and non Euclidean spaces, Tohoku Mathematical Journal 53 (2001), 467-478.
Brandolini L., Colzani L., Iosevich A., Podkorytov A. and Travaglini G., Geometry of the Gauss map and lattice points in convex domains, to appear in Mathematika.
Brandolini L., Colzani L., Iosevich A. and Travaglini G.,The rate of convergence of Fourier expansions in the plane: a geometric
viewpoint, to appear in Math. Z..

Dalla Volta Francesca
Dalla Volta F. and Gavioli N., On the admissibility of some linear and projective groups in odd characteristic, Geom. Didicata, 66 91997), 245-254.
Dalla Volta F., Lucchini A. and Tamburini M.C., On the conjugacy problem for Carter subgroup, Comm. in Algebra, 26(2) (1998), 395-399.
Dalla Volta F. and  Lucchini A., The smallest goup with non zero presentation rank, J. Group Theory 2 (1999), 147-155.
Dalla Volta F. and Gavioli N., Minimal counterexamples to a conjecture by Hall and Paige.

DeMichele Leonede
DeMichele L. and Soardi P. M., On multiresolution analyses of multiplicity d, Mh. Math. 124 (1997), 255-272.
De Michele L. and Roux D., Approximate units and Gibbs phenomenon, Boll.Un.Mat.Ital., 7  11-A (1997), 739-746
De Michele L. and Roux D.,  The Gibba phenomenon for multiple Fourier integrals and series: restriction theorems, Atti Sem.mat.Fis.Univ.Modena 46 (suppl.) (1998), 351-360.
De Michele L. and Roux D.,  The Gibbs phenomenon for L1-loc kernels, to appear in J.Approx. Theory.
DeMichele L. and Soardi P. M., An extension of A. Cohen's arithmetic characterization of filters associated with orthonormal wavelets, Technical Report (1998).

Giorgilli Antonio
Giorgilli A. and Morbidelli A., Invariant KAM tori and global stability for hamiltonian systems, ZAMP 48 (1997) , 102-134.
Giorgilli A. and Morbidelli A., On the role of high order resonances in normal forms and in separatrix splitting, Physica D 102 (1997), 195-207.
Giorgilli A. and Locatelli U., Kolmogorov theorem and classical perturbation theory, ZAMP 48 (1997), 220-261.
Giorgilli A. and Skokos Ch., On the stability of the trojan asteroids, Astron. Astroph. 317 (1997) 254-261.
Giorgilli A. and Locatelli U., On classical series expansions for quasi-periodic motions, MPEJ 3 (1997).
Giorgilli A., Lazutkin V.F. and Simo C., Visualization of a hyperbolic structure in area preserving maps, Regular and Chaotic dynamics 2 (1997), 47-61.
Giorgilli A., Classical constructive methods in KAM theory, PSS (1999) in press.
Steichen D. and Giorgilli A., Long time stability for the main problem of artificila satellites, Cel Mech. (1998) in press.

Kuhn Gabriella
Cartwright D., Kuhn G. and Soardi P.M., A product formula for spherical representations of the group of automorphism of a homogeneous tree I to appear in Trans. Amer. Mat. Soc.\yr 2000\vol 353\pages 349--364
Cartwright D. and Kuhn G, A product formula for spherical representations of the grop of automorphism of a homogeneous tree II to appear in \jour Trans. Amer. Mat. Soc.\yr 2001\vol 353\pages 2073--2090
Kuhn G. and Steger T, Monotony of certain free group representations, (1998) to appear in \jour J. Funct. Anal.\yr 2001\vol 179\pages 1--17
Kuhm G. and Steger T. More irreducible boundary representations of free groups, Duke Math. J., 82, (1996), 381-436.
Kuhm G. and Steger T., Paschke's conjecture holds for endpoint of anisotropic representations the free group J. Australian Math. Soc., in press
M.G. Kuhn, A. Vershik, Canonical semigroups of states and cocycles for the group of automorphisms of a homogeneous tree Algebr. Represent. Theory, in press
M.G. Kuhn, T. Steger, Free Group Representations from matrix-valued multiplicative functions, presentato per la pubblicazione

Levi Sandro
Holà L. and  Levi S., Decomposition properties of hyperspace topologies, Set Valued Anal. 5 (1977), 309-321.
Holà L., Levi S. and Pelant J., Normality and paracompactness of the Fell topology, 1997, Proc. A.M.S., to appear.
Costantini C., Levi S., Pelant, J., Compactness and local compactness in hyperspaces, preprint.

Magri Franco
Magri F., Eight lectures on integrable systems, in the Proccedings of the CIMPA Summer School on nonlinear systems, B. Grammaticos and K. Tamizhmani eds, Pondicherry, India, January 1996,  Lecture Notes in Physics 495, 256-296.
Falqui G., Magri F. and Pedroni M., Bihamiltonian Geometry, Darboux coverings and linearization of the KP hierarchy, Commun. Math. Phys., 197 (1997), 303-324.
Magri F., Pedroni M. and Zubelli J.P., On the geometry of Darboux transformations for the KP herarchy and its connections with the discrete KP hierarchy, Commun. Math. Phys. 188 (1997), 305-325.

Morpurgo Carlo
Laugesen R.S. and Morpurgo C., Extremal eigenvalues of the laplacian under conformal mapping, J. Funct, Anal. 155 (1998), 64-108.
Morpurgo C., Conformally invariant Sobolev inequalities and the spectrum of intertwining operators, to appear in Duke Math. J.
Morpurgo C., Sharp trace inequalities for intertwining operators in R^n and S^n, (1999) Internat. Math. Res. Notices, to appear.
Grafakos L. and Morpurgo C.,  A Selberg integral formula and applications, (1999) Pacific J. Math. to appear.
Laeng E. and Morpurgo C., An incertainity inequality involving L1 norms,  (1999) Proc. Amer. Math. Soc. to appear.
Morpurgo C., Extremals of some uncertainty inequalities, Bull. London Math. Soc. 33 (2001), 52-58.

Naldi Giovanni
V. Comincioli, G. Naldi, G.Toscani, Diffusive limit of two velocity models: the porous medium equation, Transport Theory and Stat. Phys.26 (1-2), (1997), 49-63.
G.Naldi and P. Venini, Wavelet analysis of structures: statics, dynamics and damage identification, Meccanica, 32 n.3 (1997).
G.Naldi, P. Venini Postprocessing singular solutions by the wavelet transform, J.M. Dulieu-Smith, W.J. Staszewski, K.Worden (eds.) Proceedings Euromech 365, Sheffiled 1997, pp. 109-120.
G. Naldi, E.D'Angelo, A Compartmental Model of the Cerebellar Granule Cell, Studi Urbinati, 1997 pp. 185-194.
G. Naldi, L. Pareschi, Numerical Schemes for Hyperbolic Systems of Conservation Laws with Stiff Diffusive Relaxation, preprint n.255 Ferrara 1997.
G. Naldi, A. Tiano, G. Reali, P. Venini, Rough Sea-Containership Interactions leading to possible Chaotic Effects, Proceedings International Forum on Nonlinear Mechanics, Haifa 1997 .
G. Naldi, P. Venini, Optimal shape design and identification using wavelets bases, Proceedings 2-th World Congress of Structural and Multidisciplinary Optimization, W. Gutkowski, Z. Mròz (eds.), Zakopane May 1997.
G. Naldi, P. Venini, Applicazioni della Trasformata Wavelet in Ingegneria delle strutture, Atti XIII Congresso Nazionale AIMETA Siena (1997).
G. Naldi, L. Pareschi, Numerical Schemes for Kinetic Equations in Diffusive Regimes, Appl. Math. Lett. 11 n.2 (1998).
G.Naldi, L. Pareschi, G. Toscani, Hyperbolic Relaxation Approximation to Nonlinear Parabolic Problems, Proceedings Seventh International Conference on Hyperbolic Problems, Zurigo (1998).
V. Comincioli, G. Naldi, T. Scapolla, P. Venini, Optimal shape design and identification using wavelet bases, Proceedings VIIth International Conference on NMCM  98, High Tatras, Slovak republic (1998).
G.Naldi, L. Pareschi, Numerical Schemes for Hyperbolic Systems of Conservation Laws with Stiff Diffusive Relaxation sottoposto a SIAM J. NUM. ANAL.
V. Comincioli, G. Naldi, T. Scapolla, Wavelets-based methods for numerical solution of nonlinear reaction-diffusion systems, sottoposto Proceedings ICOSAHOM 1998 Herzelya (Israele).
V. Comincioli, G. Naldi, T. Scapolla, P. Venini, Wavelets-based methods for numerical solution of variational inequalities arising in elastoplasticity, sottoposto Proceedings ECMI 98 Goteborg.

Perotti Alessandro
Perotti A., Some applications of the trace condition for pluriharmonic functions in C^n, preprint (1999).
Perotti A., Dirichlet problems for pluriharmonic functions of several complex variables, Comm. in P. D. E., Vol.24, nn.3&4, 707-717 (1999).
Perotti A., Multidimensional residues and ideal membership, Publ. Mat. 42 (1998), 143-152.

Piccinini Renzo
Piccinini R. and Spreafico M., Conjugacy classes of Gauge groups,Queen's papers in Pure and Applied Math. n^ 111 (1998), Queen's University, Kingston, Canada.
Minatta A., Piccinini R. and Spreafico M., A note about the isotropy groups of 2-plane bundles over closed surfaces.To be published in Collectanea mathematica.

Rigoli Marco
Brandolini L., Rigoli M. and Setti A., Positive solutions of Yamabe-type equations on the Heisenberg group, Duke J. Math., 91 (1998), 241-296.
L. Brandolini, M. Rigoli and G. Travaglini. Average decay of Fourier transforms and geometry of convex sets. Rev. Mat. Iberoam. 14 (1998), 519-560.
Brandolini L., Rigoli M. and Setti A., Positive solutions of Yamabe-type equations on complete manifolds and applications, J. Funct. Anal. to appear.
Rigoli M. and Setti A., Liouville- type theorems for rotationally symmetric harmonic maps, Dynam. Systems and Appl. to appear.

Rossini Milva
Rossini M., 2D- Discontinuity detection from scattered data. Computing 61, (1998) 215-234
Bozzini M., Rossini M., Approximating Surfaces with Discontinuities. In Proceedings of the International Conference on Imaging Science, System and Technology, H. Arabnia (ed.) CSREA Press (1998) 351-357.
Bozzini M., Rossini M., Approximating surfaces with discontinuities. Mathematical and Computer Modelling 31 issue 6/7 (2000) 193-216.
Bozzini M., Rossini M., On a Method of Numerical Differentiation. In Curve and Surface Fitting: Saint-Malo 1999, Albert Cohen, Christophe Rabut, and Larry L. Schumaker (eds.) Vanderbilt University Press, Nashville, TN (2000) 85-94.
Bozzini M., Rossini M., Numerical differentiation of two-dimensional functions from noisy data. To appear on Computers & Mathematics with Applications, Special Issue on Numerical Methods in Physics, Chemistry and Engineering.
Rossini M., Detecting Discontinuities: an application. To appear on Computers & Mathematics with Applications, Special Issue on Numerical Methods in Physics, Chemistry and Engineering.
Bozzini M., L. Lenarduzzi, M. Rossini and R. Schaback, Interpolation by basis functions of different scales and shapes. Preprint, 2000
Bozzini M. and M. Rossini, Testing methods for 3D scattered data interpolation. Preprint, 2001.

Roux Delfina
De Michele L. and Roux D., Approximate units and Gibbs phenomenon, Boll.Un.Mat.Ital., 7  11-A (1997), 739-746.
Di Lena G, Messano B. and Roux D., Rigid sets and nonexpansive maps, Proc. Amer.Math.Soc. 125  (1997), 3575-3580.
De Michele L. and Roux D.,  The Gibbs phenomenon for multiple Fourier integrals and series: restriction theorems, Atti Sem.mat.Fis.Univ.Modena 46 (suppl.) (1998), 351-360.
De Michele L. and Roux D.,  The gibbs phenomenon for L1-loc kernels, to appear in J.Approx. Theory.

Soardi Paolo Maurizio
Cartwright D., Kuhn G. and Soardi P.M., A product formula for spherical representations of the group of automorphism of a homogeneous tree I, (1997)  preprint
DeMichele L. and Soardi P. M., An extension of A. Cohen's arithmetic characterization of filters associated with orthonormal wavelets, Technical Report (1998)..
DeMichele L. and  Soardi P. M., On multiresolution analyses of multiplicity d, Mh. Math. 124 (1997), 255-272.
Holopainen I. and Soardi , Strong Liouville theorems for p-harmonic functions on graphs, Ann. Sci. Fenn. 22 (1997), 295-326
Holopainen I. and Soardi  P. M., p-harmonic functions on graphs and manifolds, Manuscr. Math. 94 (1997), 95-110.
Soardi  P. M., Wavelet bases in rearrangement ivariant function spaces, Proc. Amer. Math. Soc. 125 (1997), 3669--1673
Soardi  P. M., Holder regularity of compactly supported p-wavelets, p=3,4,5, Constr. Approx. 14, (1998), 387--399.
Soardi  P. M., Appunti sulle Ondine, (1998) Lecture Notes (in italian).
Soardi P.M. and Weiland D., Single wavelets in Rn, J. Fourier Anal. and its Appl., 4 (1988), 299-315.
Soardi P.M., On quantitative Korovkin's theorem in multivariate Orlicz spaces, Math. Japonica 48 (1998), 205-212.
Soardi, P.M., Biorthogonal $M$-channel compactly supported wavelets, preprint 1999.
Salvatori M. and Soardi P.M., Affine frames of multivariate box splines and their affine duals, preprint 2000

Tablino Possio Cristina
S. Serra Capizzano, C. Tablino Possio, Multigrid methods for multilevel circulant matrices, submitted.
S. Serra Capizzano, C. Tablino Possio, Analysis of preconditioning strategies for collocation linear systems, submitted.
S. Serra Capizzano, C. Tablino Possio, Preconditioning strategies for 2D Finite Difference matrix sequences, submitted.
S. Serra Capizzano, C. Tablino Possio, Positive representation formulas for Finite Difference discretizations of (elliptic) second order PDEs, Contemporary mathematics, in press.
S. Serra Capizzano, C. Tablino Possio, Finite Element matrix-sequences: the case of rectangular domains, Numerical Algorithms, in press.
S. Serra Capizzano, C. Tablino Possio, Structured preconditioning of optimal preconditioners for 2D collocation linear systems in Structured Matrices: Recent Developments in Theory and Computations, D. Bini, E. Tyrtyshnikov and P. Yalamov Eds., Nova Science Publisher Inc., pp. 191--204 (2001).
S. Serra Capizzano, C. Tablino Possio, Preliminary remarks on Multigrid Methods for circulant matrices, Proc. Second Workshop on Numerical Analysis and Applications: symposium on Recent Advances on Structured Matrices and Applications (Rousse, Bulgaria, June, 11--15, 2000), Lecture Notes in Computer Science, L. Vulkov, J. Wasniewski, P. Yalamov Eds., Springer-Verlag, Vol. 1988, pp. 152--159 (2001).
S. Serra Capizzano, C. Tablino Possio, Preliminary remarks on preconditioning strategies for two dimensional collocation linear systems, Proc. Second Workshop on Large-Scale Scientific Computation (Sozopol, Bulgaria, June, 2-6, 1999), Vieweg Notes on Numerical Fluid Mechanics 73, M. Griebel, S.D. Margenov, P. Yalamov Eds., pp. 94--101 (2000).
S. Serra Capizzano, C. Tablino Possio, Constructive techniques for approximating collocation linear systems, Numerical Algorithms, Vol. 25, pp. 323--339 (2000).
S. Serra Capizzano, C. Tablino Possio, High-precision Finite Differences schemes and Toeplitz based preconditioners for Elliptic Problems, Electronic Transactions on Numerical Analysis, Vol. 11, pp. 55--84 (2000).
S. Serra Capizzano, C. Tablino Possio, Spectral and structural analysis of high precision Finite Differences matrices for Elliptic Operators, Linear Algebra and its Applications, Vol. 293, pp. 85--131 (1999).
S. Serra, C. Tablino Possio, Analytical analysis of Gavrilov-Guckenheimer bifurcation unfolding in the case of a PI controlled CSTR, SIAM Journal on Applied Mathematics, Vol. 59, No. 5, pp. 1716--1744 (1999).

Terracini Susanna

Travaglini Giancarlo
Ricci F. and Travaglini G., $L^p-L^q$ estimates for orbital measures and Radon transforms on compact Lie groups and Lie algebras, J. Funct. Anal. 129 (1995), 132-147.
Brandolini L. and Travaglini G., Pointwise convergence of Fejer type means, Tohoku Math. J. 49 (1997), 323-336.
Brandolini L., Colzani L. and Travaglini G., Average decay of Fourier transforms and integer points in polyhedra. Ark. f. Mat. 35 (1997), 253-275.
Brandolini L., Rigoli M. and Travaglini G., Average decay of Fourier transforms and geometry of convex sets, Rev. Mat. Iberoam. 14 (1998), 519-560.
Ricci F. and Travaglini G., Convex curves, Radon transforms and convolution operators defined by singular measures, Proc. Amer. Math. Soc. 129 (2001), 1739-1744.
Brandolini, L., Iosevich A. and Travaglini G., Spherical means and the restriction phenomenon, J. Fourier Anal. Appl. 7 (2001), 359-372
Brandolini L., Colzani L., Iosevich A., Podkorytov A. and Travaglini G., Geometry of the Gauss map and lattice points in convex domains, to appear in Mathematika.
Brandolini L., Colzani L., Iosevich A. and Travaglini G.,The rate of convergence of Fourier expansions in the plane: a geometric viewpoint, to appear in Math. Z..
Brandolini, L., Iosevich A. and Travaglini G., Planar convex bodies, Fourier transform, lattice points, and irregularities of distribution.
Travaglini G., Average decay of the Fourier transform.