Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 15 of 15 for “"Settore MATH-03/A - Analisi matematica"”.
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CLASSIFICATION RESULTS FOR SEMILINEAR ELLIPTIC EQUATIONS
This thesis addresses classification problems of solutions to semilinear elliptic equations, with a particular focus on the study of symmetry and rigidity results. The thesis is divided into four chapters. In Chapter 1 we consider solutions to some semilinear elliptic equations on complete …
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A STUDY OF DE BRANGES - ROVNYAK AND DIRICHLET SPACES
… spaces of analytic functions on the unit disk $\mathbb{D}$ of the complex plain, $\mathbb{D}:=\{z\in\mathbb{C}\colon |z|<1\}$. This work lies in the intersection between complex analysis, operator theory and harmonic analysis. In particular, we are interested in the de Branges-Rovnyak spaces …
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Subset Selection and Detection Problems in Opinion Dynamics Models
L'abstract è presente nell'allegato / the abstract is in the attachment
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Structural Conditions for Global Existence in Some Chemotaxis Systems with Different Logistics
This doctoral thesis develops a comprehensive mathematical analysis of a wide class of chemotaxis systems inspired by and extending the classical Keller–Segel model. The models investigated combine attraction–repulsion mechanisms, signal production and consumption, and logistic-type growth and …
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PERFECT FLUIDS AND SIGMA MODELS: A MATHEMATICAL INVESTIGATION BETWEEN GENERAL RELATIVITY AND COTTON GRAVITY
In this thesis, we deal with two physics-inspired structures on Riemannian manifolds, depending on a smooth map φ between Riemannian manifolds and several other functions and constants; they are called Cotton φ-Perfect Fluids (C-φ-PF) and φ-static perfect fluids space-times (φ-SPFST). The latter …
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Network effects and behavioral feedback in epidemic models
L'abstract è presente nell'allegato / the abstract is in the attachment
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Nonlinear Schrödinger equation on graphs with physical potentials
L'abstract è presente nell'allegato / the abstract is in the attachment
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Existence of expansive solutions and Hamilton-Jacobi equations for the N-body problem
L'abstract è presente nell'allegato / the abstract is in the attachment
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Twisted and intermediate eigenvalue problems in shape optimization
L'abstract è presente nell'allegato / the abstract is in the attachment
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Schauder Regularity Theory for Degenerate and Singular PDEs
L'abstract è presente nell'allegato / the abstract is in the attachment
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Mathematical and Computational Methods for the n-Body Problem
… transforms high-precision computations into mathematically guaranteed results, uniting analytical rigour with computational discovery. Overall, the Thesis advances the state of the art by integrating variational theory, numerical optimisation, and validated computation into a single, coherent …
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Boundedness, Hypoellipticity and Schatten-Von Neumann properties for Global Pseudo-differential Operators on R^d.
L'abstract è presente nell'allegato / the abstract is in the attachment
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LONG TIME BEHAVIOR OF LINEAR AND NONLINEAR WAVES:LARGE LARGE AMPLITUDE TRAVELING QUASI-PERIODIC SOLUTIONS IN FLUID MECHANICS AND DYNAMICS OF LINEAR WAVE EQUATIONS
… where we consider two different models on $\mathbb{T}^2$: the non-resistive Magnetohydrodynamics (MHD) system and the 2D-Euler equation for rotating fluids ($\beta$-plane equation), both in presence of a large amplitude traveling wave external force with large velocity speed $\lambda \omega$, …
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New and old sub-Riemannian challenges bridging analysis and geometry
The aim of this thesis is to propose a systematic exposition of some analytic and geometric problems arising from the study of sub-Riemannian geometry, Carnot-Carathéodory spaces and, more broadly, anisotropic metric and differential structures. We deal with four main topics. 1 Calculus of …