1.

Record Nr.

UNINA9910972376703321

Autore

Gignac William

Titolo

Local Dynamics of Non-Invertible Maps near Normal Surface Singularities

Pubbl/distr/stampa

Providence : , : American Mathematical Society, , 2021

©2021

ISBN

9781470467531

1470467534

Edizione

[1st ed.]

Descrizione fisica

1 online resource (118 pages)

Collana

Memoirs of the American Mathematical Society ; ; v.272

Classificazione

32S0532H5013A1837P5032S45

Altri autori (Persone)

RuggieroMatteo

Disciplina

514/.746

Soggetti

Singularities (Mathematics)

Holomorphic mappings

Germs (Mathematics)

Holomorphic functions

Several complex variables and analytic spaces -- Singularities -- Local singularities

Several complex variables and analytic spaces -- Holomorphic mappings and correspondences -- Iteration problems

Commutative algebra -- General commutative ring theory -- Valuations and their generalizations

Dynamical systems and ergodic theory -- Arithmetic and non-Archimedean dynamical systems -- Dynamical systems on Berkovich spaces

Several complex variables and analytic spaces -- Singularities -- Modifications; resolution of singularities

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Nota di bibliografia

Includes bibliographical references.

Nota di contenuto

Normal surface singularities, resolutions, and intersection theory -- Normal surface singularities and their valuation spaces -- Log discrepancy, essential skeleta, and special singularities -- Dynamics on valuation spaces -- Dynamics of non-finite germs -- Dynamics of non-invertible finite germs -- Algebraic stability -- Attraction rates -- Examples and remarks.

Sommario/riassunto

"We study the problem of finding algebraically stable models for non-



invertible holomorphic fixed point germs f : (X, x0) (X, x0), where X is a complex surface having x0 as a normal singularity. We prove that as long as x0 is not a cusp singularity of X, then it is possible to find arbitrarily high modifications : X (X, x0) such that the dynamics of f (or more precisely of f N for N big enough) on X is algebraically stable. This result is proved by understanding the dynamics induced by f on a space of valuations associated to X; in fact, we are able to give a strong classification of all the possible dynamical behaviors of f on this valuation space. We also deduce a precise description of the behavior of the sequence of attraction rates for the iterates of f . Finally, we prove that in this setting the first dynamical degree is always a quadratic integer"--

2.

Record Nr.

UNINA9911020439403321

Autore

Weiss Kenneth M

Titolo

Genetics and the logic of evolution

Pubbl/distr/stampa

[Place of publication not identified], : Wiley Liss, 2004

ISBN

1-280-55663-3

9786610556632

0-471-53266-5

0-471-53265-7

Edizione

[Reissue]

Descrizione fisica

1 online resource (538 pages)

Disciplina

572.838

Soggetti

Evolution, Molecular

Genes

Logic

Evolution

Biology

Health & Biological Sciences

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Bibliographic Level Mode of Issuance: Monograph



Sommario/riassunto

In this book the authors draw on what is known, largely from recent research, about the nature of genes and cells, the genetics of development and animal and plant body plans, intra-- and interorganismal communication, sensation and perception, to propose that a few basic generalizations, along with the modified application of the classical evolutionary theory, can provide a broader theoretical understanding of genes, evolution, and the diverse and complex nature of living organisms.