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1. |
Record Nr. |
UNINA9910452618403321 |
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Autore |
Osha Sanya |
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Titolo |
A Troubadour's thread [[electronic resource] /] / Sanya Osha |
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Pubbl/distr/stampa |
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Bamenda, Cameroon, : Langaa Research & Pub. CIG, c2013 |
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ISBN |
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9956-791-96-2 |
9956-791-84-9 |
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Descrizione fisica |
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1 online resource (30 p.) |
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Disciplina |
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Soggetti |
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Poetry |
Poetry, Modern - 20th century |
Poetry - 21st century |
Electronic books. |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Nota di contenuto |
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""Cover ""; ""Title page ""; ""Copyright page ""; ""Preface""; ""Poem ""; ""Back cover "" |
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Sommario/riassunto |
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This volume powerfully conveys the pilgrimage of a singular spirit through adversity, equanimity, immanence and eventually, transcendence. It grapples with a range of emotions, topics and sensations. Christopher Okigbo achieved similar results but in an entirely different manner. Okigbo's vision is epical in its dimensions while Osha's work is infused with a sustained lyricism, mutedness or even more appropriately, quietude. Osha's poetry unveils a multi-layered journey from artistic infancy to complete aesthetic maturity. Most of this journey dwells upon the poet's inner states in which vast geographical vistas are revealed. |
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2. |
Record Nr. |
UNINA9910449712003321 |
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Autore |
Buhmann M. D (Martin Dietrich), <1963-> |
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Titolo |
Radial basis functions : theory and implementations / / Martin Buhmann [[electronic resource]] |
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Pubbl/distr/stampa |
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Cambridge : , : Cambridge University Press, , 2003 |
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ISBN |
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1-107-12800-5 |
1-280-43229-2 |
9786610432295 |
0-511-17904-9 |
0-511-04020-2 |
0-511-14894-1 |
0-511-32602-5 |
0-511-54324-7 |
0-511-05124-7 |
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Descrizione fisica |
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1 online resource (x, 259 pages) : digital, PDF file(s) |
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Collana |
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Cambridge monographs on applied and computational mathematics ; ; 12 |
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Disciplina |
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Soggetti |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Title from publisher's bibliographic system (viewed on 05 Oct 2015). |
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Nota di bibliografia |
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Includes bibliographical references (p. 246-257) and index. |
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Nota di contenuto |
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1. Introduction -- 1.1 Radial basis functions -- 1.2 Applications -- 1.3 Contents of the book -- 2. Summary of methods and applications -- 2.1 Invertibility of interpolation matrices -- 2.2 Convergence analysis -- 2.3 Interpolation and convergence -- 2.4 Applications to PDEs -- 3. General methods for approximation and interpolation -- 3.1 Polynomial schemes -- 3.2 Piecewise polynomials -- 3.3 General nonpolynomial methods -- 4. Radial basis function approximation on infinite grids -- 4.1 Existence of interpolants -- 4.2 Convergence analysis -- 4.3 Numerical properties of the interpolation linear system -- 4.4 Convergence with respect to parameters in the radial functions -- 5. Radial basis functions on scattered data -- 5.1 Nonsingularity of interpolation matrices -- 5.2 Convergence analysis -- 5.3 Norm estimates and condition numbers of interpolation matrices -- 6. Radial basis functions with compact support -- 6.1 Introduction -- 6.2 |
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Wendland's functions -- 6.3 Another class of radial basis functions with compact support -- 6.4 Convergence -- 6.5 A unified class -- 7. Implementations -- 7.1 Introduction -- 7.2 The BFGP algorithm and the new Krylov method -- 7.3 The fast multipole algorithm -- 7.4 Preconditioning techniques -- 8. Least squares methods -- 8.1 Introduction to least squares -- 8.2 Approximation order results -- 8.3 Discrete least squares -- 8.4 Implementations -- 8.5 Neural network applications -- 9. Wavelet methods with radial basis functions -- 9.1 Introduction to wavelets and prewavelets -- 9.2 Basic definitions and constructions -- 9.3 Multiresolution analysis and refinement -- 9.4 Special constructions -- 10. Further results and open problems -- 10.1 Further results -- 10.2 Open problems -- Appendix: Some essentials on Fourier transforms. |
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Sommario/riassunto |
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In many areas of mathematics, science and engineering, from computer graphics to inverse methods to signal processing, it is necessary to estimate parameters, usually multidimensional, by approximation and interpolation. Radial basis functions are a powerful tool which work well in very general circumstances and so are becoming of widespread use as the limitations of other methods, such as least squares, polynomial interpolation or wavelet-based, become apparent. The author's aim is to give a thorough treatment from both the theoretical and practical implementation viewpoints. For example, he emphasises the many positive features of radial basis functions such as the unique solvability of the interpolation problem, the computation of interpolants, their smoothness and convergence and provides a careful classification of the radial basis functions into types that have different convergence. A comprehensive bibliography rounds off what will prove a very valuable work. |
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3. |
Record Nr. |
UNINA9910744991503321 |
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Autore |
Nallino, Carlo Alfonso |
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Titolo |
Firdusi : discorso per il millenario della sua nascita pronunziato nella R. Accademia d'Italia il 20 dicembre 1934 / Carlo Alfonso Nallino |
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Pubbl/distr/stampa |
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Roma, : Reale Accademia d'Italia, 1935 |
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Descrizione fisica |
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27 p., [3] c. di tav. : ill. ; 25 cm |
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Collana |
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Celebrazioni e commemorazioni ; 15 |
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Disciplina |
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Locazione |
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Collocazione |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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