Results 21 to 30 of about 4,429,117 (277)

Dynamics and Bifurcation of $x_{n+1}=\frac{\alpha+\beta x_{n-2}}{A+Bx_{n}+C x_{n-2}}$

open access: yesJournal of Mathematical Sciences and Modelling, 2021
In this paper, we study dynamics and bifurcation of the third order rational difference equation \begin{eqnarray*} x_{n+1}=\frac{\alpha+\beta x_{n-2}}{A+Bx_{n}+Cx_{n-2}}, ~~n=0, 1, 2, \ldots \end{eqnarray*} with positive parameters $\alpha, \beta, A, B ...
Mohammad Saleh, Batool Raddad
doaj   +1 more source

Curves of fixed points of trace maps [PDF]

open access: yes, 2007
We study curves of fixed points for certain diffeomorphisms of ${\mathbb{R}}^3$ that are induced by automorphisms of a trace algebra. We classify these curves.
Humphries, Stephen, Manning, Anthony
core   +1 more source

Fixed Point Logics

open access: yesThe Bulletin of Symbolic Logic, 2002
AbstractWe consider fixed point logics, i.e., extensions of first order predicate logic with operators defining fixed points. A number of such operators, generalizing inductive definitions, have been studied in the context of finite model theory, including nondeterministic and alternating operators. We review results established in finite model theory,
Dawar, Anuj, Gurevich, Yuri
openaire   +2 more sources

Fixed points as Nash equilibria

open access: yesFixed Point Theory and Applications, 2006
The existence of fixed points for single or multivalued mappings is obtained as a corollary of Nash equilibrium existence in finitely many players games.
Juan Pablo Torres-Martínez
doaj   +2 more sources

Fixed points and self-reference

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1984
It is shown how Gödel's famous diagonal argument and a generalization of the recursion theorem are derivable from a common construation. The abstract fixed point theorem of this article is independent of both metamathematics and recursion theory and is ...
Raymond M. Smullyan
doaj   +1 more source

Superconformal Fixed Points with E_n Global Symmetry [PDF]

open access: yes, 1996
We obtain the elliptic curve and the Seiberg-Witten differential for an $N=2$ superconformal field theory which has an $E_8$ global symmetry at the strong coupling point $\tau=e^{\pi i/3}$. The differential has 120 poles corresponding to half the charged
Dennis Nemeschansky   +5 more
core   +3 more sources

Infinite-randomness quantum Ising critical fixed points [PDF]

open access: yes, 1999
We examine the ground state of the random quantum Ising model in a transverse field using a generalization of the Ma-Dasgupta-Hu renormalization group (RG) scheme.
Fisher, Daniel S.   +3 more
core   +2 more sources

Bounded Fixed Point Iteration

open access: yesDAIMI Report Series, 1991
In the context of abstract interpretation for languages without higher-order features we study the number of times a functional need to be unfolded in order to give the least fixed point. For the cases of total or monotone functions we obtain an exponential bound and in the case of strict and additive (or distributive) functions we obtain a quadratic ...
Nielson, Hanne Riis, Nielson, Flemming
openaire   +4 more sources

Fixed Points for w-Contractive Multimaps

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2009
Using the generalized Caristi's fixed point theorems we prove the existence of fixed points for self and nonself multivalued weakly w-contractive maps.
Abdul Latif, Marwan A. Kutbi
doaj   +1 more source

Hierarchical renormalization goup fixed points

open access: yes, 1994
Hierarchical renormalization group transformations are related to non-associative algebras. Non-trivial infrared fixed points are shown to be solutions of polynomial equations. At the example of a scalar model in $d(\ge2)$ dimensions some methods for the
A. Pordt   +6 more
core   +1 more source

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