: Shair Ahmad, Ivanka M. Stamova
: Lotka-Volterra and Related Systems Recent Developments in Population Dynamics
: Walter de Gruyter GmbH& Co.KG
: 9783110269840
: De Gruyter Series in Mathematics and Life SciencesISSN
: 1
: CHF 146.30
:
: Mathematik
: English
: 244
: Wasserzeichen
: PC/MAC/eReader/Tablet
: PDF
This book facilitates research in the general area of population dynamics by presenting some of the recent developments involving theories, methods and application in this important area of research. The underlying common feature of the studies included in the book is that they are related, either directly or indirectly, to the well-known Lotka-Volterra systems which offer a variety of mathematical concepts from both theoretical and application points of view.



< >Z.Hou, London Met. Univ.;B.Lisena, UniBa, Bari;Z.Teng, Xinjiang Univ., Urumqi;F.Zanolin, UniUd, Udine.

Preface5
Permanence, global attraction and stability9
1 Introduction9
2 Existence of a compact uniform attractor11
3 Proof of Theorems 2.1, 2.2 and 2.316
4 Partial permanence and permanence23
5 Necessary conditions for permanence of Lotka-Volterra systems34
6 Sufficient condition for permanence of Lotka-Volterra systems39
7 Further notes47
8 Global attraction and stability of Lotka-Volterra systems47
9 Global stability by Lyapunov functions48
10 Global stability by split Lyapunov functions50
10.1 Checking the conditions (10.2) and (10.8)54
10.2 Examples55
11 Global stability of competitive Lotka-Volterra systems56
12 Global attraction of competitive Lotka-Volterra systems63
13 Some notes68
Bibliography68
Competitive Lotka-Volterra systems with periodic coefficients71
1 Introduction71
2 The autonomous model. The logistic equation72
3 Two species periodic models76
4 Competitive exclusion84
5 One species extinction in three-dimensional models90
6 The impulsive logistic equation99
7 Two species systems with impulsive effects. A look at the N-dimensional case103
8 The influence of impulsive perturbations on extinction in three-species models117
Bibliography129
Fixed points, periodic points and chaotic dynamics for continuous maps with applications to population dynamics131
1 Introduction131
2 Notation133
3 Search of fixed points for maps expansive along one direction135
4 The planar case136
4.1 Stretching along the paths and variants136
4.2 The Crossing Lemma151
5 The N-dimensional setting: Intersection Lemma160
5.1 Zero-sets of maps depending on parameters165
5.2 Stretching along the paths in the N-dimensional case171
6 Chaotic dynamics for continuous maps176
7 Definitions and main results180
8 Symbolic dynamics189
9 On various notions of chaos198
10 Linked twist maps206
11 Examples from the ODEs214
12 Predator-prey model215
12.1 The effects of a periodic harvesting215
12.2 Technical details and proofs223
Bibliography233
Index243