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Record Nr. |
UNINA9910451526103321 |
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Titolo |
Contemporary trends in nonlinear geometric control theory and its applications [[electronic resource] /] / A. Anzaldo-Meneses ... [et al.] |
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Pubbl/distr/stampa |
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River Edge, NJ, : World Scientific, c2002 |
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ISBN |
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Descrizione fisica |
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1 online resource (496 p.) |
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Altri autori (Persone) |
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Disciplina |
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Soggetti |
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Nonlinear control theory |
Geometry, Differential |
Exterior differential systems |
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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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Contents ; Foreword ; Part I Invited Survey Chapters ; Variational Problems on Lie Groups and their Homogeneous Spaces: Elastic Curves Tops and Constrained Geodesic Problems ; 1. Introduction ; 2. Space forms and their frame bundles ; 3. Hamiltonians and the extremal curves |
Controllability of Lie Systems 1. Introduction ; 2. Control systems on Lie groups ; 3. Groups irrelevant for transitivity ; 4. Exploiting compactness and irrelevancy ; 5. Irrelevant groups and algebras ; 6. Irrelevant groups and algebras: the solvable case |
7. Irrelevant groups and algebras: the semisimple case Canonical Contact Systems for Curves: A Survey ; 1. Introduction ; 2. The canonical contact system for curves ; 3. History ; 4. Involutive subdistributions of corank one |
5. Contact systems characteristic distributions and involutive subdistributions 6. Flatness of contact systems ; 7. An example ; 8. Singular points and extended Kumpera-Ruiz normal forms ; The Brachistochrone Problem and Modern Control Theory |
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; 1. Introduction |
2. Johann Bernoulli and the brachistochrone problem 3. The standard formulation and Johann Bernoulli's solution ; 4. Spurious solutions and the calculus of variations approach ; 5. The optimal control approach ; 6. The differential-geometric connection |
7. Five modern variations on the theme of the brachistochrone |
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Sommario/riassunto |
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Mathematical control theory has evolved from the study of practical problems in engineering and sciences to the elaboration of deep, important concepts in mathematics and applied sciences. This volume concerns contemporary trends in nonlinear geometric control theory and its applications. It is a fine collection of papers presenting new results, relevant open problems, and important applications regarding academic and real-world problems. The book is dedicated to Velimir Jurdjevic whose scientific activity has been influential in the research of many of the authors. It contains a number of a |
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2. |
Record Nr. |
UNINA9910557289403321 |
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Autore |
Boscaiu Monica |
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Titolo |
Physiological and Molecular Characterization of Crop Resistance to Abiotic Stresses |
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Pubbl/distr/stampa |
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Basel, Switzerland, : MDPI - Multidisciplinary Digital Publishing Institute, 2020 |
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Descrizione fisica |
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1 online resource (488 p.) |
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Soggetti |
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Biology, life sciences |
Research & information: general |
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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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Sommario/riassunto |
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Abiotic stress represents the main constraint for agriculture, affecting plant growth and productivity worldwide. Yield losses in agriculture will |
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be potentiated in the future by global warming, increasing contamination, and reduced availability of fertile land. The challenge for agriculture of the present and future is that of increasing the food supply for a continuously growing human population under environmental conditions that are deteriorating in many areas of the world. Minimizing the effects of diverse types of abiotic stresses represents a matter of general concern. Research on all topics related to abiotic stress tolerance, from understanding the stress response mechanisms of plants to developing cultivars and crops tolerant to stress, is a priority. This Special Issue is focused on the physiological and molecular characterization of crop resistance to abiotic stresses, including novel research, reviews, and opinion articles covering all aspects of the responses and mechanisms of plant tolerance to abiotic. Contributions on physiological, biochemical, and molecular studies of crop responses to abiotic stresses; the description and role of stress-responsive genes; marker-assisted screening of stress-tolerant genotypes; genetic engineering; and other biotechnological approaches to improve crop tolerance were considered. |
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