Results 11 to 20 of about 574 (169)

Birational Maps of X(1) into P2

open access: yesGlasnik matematički, 2013
In this paper we study birational maps of modular curve X(1) attached to SL2(Z) into the projective plain P2. We prove that every curve of genus 0 and degree q in P2 can be uniformized by modular forms for SL2(Z) of weight 12q but not with modular forms of smaller weight, and that the corresponding uniformization can be chosen to be a birational ...
Muić, Goran, Mikoč, Damir
openaire   +6 more sources

On the Construction of Elliptic Solutions of Integrable Birational Maps [PDF]

open access: yesExperimental Mathematics, 2016
We present a systematic technique to find explicit solutions of birational maps, provided that these solutions are given in terms of elliptic functions. The two main ingredients are: (i) application of classical addition theorems for elliptic functions, and (ii) experimental technique to detect an algebraic curve containing a given sequence of points ...
Petrera, Matteo   +3 more
openaire   +5 more sources

Tri-linear birational maps in dimension three

open access: yesMathematics of Computation, 2023
A tri-linear rational map in dimension three is a rational map ϕ :
Laurent Busé   +2 more
openaire   +4 more sources

Symplectic Maps from Cluster Algebras [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2011
We consider nonlinear recurrences generated from the iteration of maps that arise from cluster algebras. More precisely, starting from a skew-symmetric integer matrix, or its corresponding quiver, one can define a set of mutation operations, as well as a
Allan P. Fordy, Andrew Hone
doaj   +2 more sources

Dynamics of birational maps of P^2 [PDF]

open access: yesIndiana University Mathematics Journal, 1996
Inspired by work done for polynomial automorphisms, we apply pluripotential theory to study iteration of birational maps of P2. A major theme is that success of pluripotential theoretic constructions depends on separation between orbits of the forward and backward indeterminacy sets.
Jeffrey Diller
openaire   +2 more sources

Open loci of ideals with applications to birational maps

open access: yesProceedings of the American Mathematical Society, 2023
In this work we show that the loci of ideals in principal class, ideals of grade at least two, and ideals of maximal analytic spread are Zariski open sets in the parameter space. As an application, we show that the set of birational maps of clear polynomial degree
Hassanzadeh, S. Hamid   +1 more
openaire   +3 more sources

Nonlinear Schrödinger type tetrahedron maps

open access: yesNuclear Physics B, 2020
This paper is concerned with the construction of new solutions in terms of birational maps to the functional tetrahedron equation and parametric tetrahedron equation.
S. Konstantinou-Rizos
doaj   +1 more source

$F$-SIGNATURE UNDER BIRATIONAL MORPHISMS

open access: yesForum of Mathematics, Sigma, 2019
We study $F$-signature under proper birational morphisms $\unicode[STIX]{x1D70B}:Y\rightarrow X$, showing that $F$-signature strictly increases for small morphisms or if $K_{Y}\leqslant \unicode[STIX]{x1D70B}^{\ast }K_{X}$.
LINQUAN MA   +3 more
doaj   +1 more source

Discrete integrable systems and Poisson algebras from cluster maps [PDF]

open access: yes, 2014
We consider nonlinear recurrences generated from cluster mutations applied to quivers that have the property of being cluster mutation-periodic with period 1.
Fordy, AP   +3 more
core   +1 more source

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