Results 41 to 50 of about 2,516,410 (332)

Dynamics of a quasi-quadratic map [PDF]

open access: yes, 2012
We consider the map given by , where denotes the smallest integer greater than or equal to , and study the problem of finding, for each rational, the smallest number of iterations by that sends it into an integer. Given two natural numbers and , we prove
A. Azevedo   +2 more
semanticscholar   +1 more source

Exploring the Associations Between MAP Growth and SBA by Demographics

open access: yesFrontiers in Education, 2022
MAP Growth (MAP) and Smarter Balanced assessment (SBA) are two of the most common standardized assessments used in Pre-Kindergarten to Grade 12 education in the United States.
January Durant, Daniel B. Wright
doaj   +1 more source

The Breakup Condition of Shearless KAM Curves in the Quadratic Map [PDF]

open access: yes, 1997
We determined the exact location of the shearless KAM curve in the quadratic map and numerically investigate the breakup thresholds of those curves in the entire parameter space.
S. Shinohara, Y. Aizawa
semanticscholar   +1 more source

BERNULLI DIFFERENTIAL EQUATION AND CHAOS

open access: yesVìsnik Dnìpropetrovsʹkogo Unìversitetu: Serìâ Modelûvannâ, 2013
Existence conditions of homoclinic orbits for some systems of ordinary quadratic dif­ferential equations with singular linear part are founded. A realization of these conditions guarantees the existence of chaotic attractors at 3-D autonomous quadratic ...
V. Ye. Belozerov
doaj   +1 more source

Quadratic rational maps with integer multipliers

open access: yes, 2021
17 pages, 4 figures, 6 tablesIn this article, we prove that every quadratic rational map whose multipliers all lie in the ring of integers of a given imaginary quadratic field is a power map, a Chebyshev map or a Lattès map.
Huguin, Valentin
core   +1 more source

On the Content Bound for Real Quadratic Field Extensions

open access: yesAxioms, 2012
Let K be a finite extension of Q and let S = {ν} denote the collection of K normalized absolute values on K. Let V+K denote the additive group of adeles over K and let K ≥0   c : V + → R denote the content map defined as c({aν }) = Q K   ν ∈S ν (aν ) for
Robert G. Underwood
doaj   +1 more source

Existence of solutions of some quadratic integral equations [PDF]

open access: yesOpuscula Mathematica, 2008
In this paper we study the existence of continuous solutions of quadratic integral equations. The theory of quadratic integral equations has many useful applications in mathematical physics, economics, biology, as well as in describing real world ...
Giuseppe Anichini, Giuseppe Conti
doaj  

Persistence of resonant torus doubling bifurcation under polynomial perturbations

open access: yesFranklin Open
Resonant torus doubling bifurcation occurs in discrete maps of three or more dimensions. To date, only three discrete maps have been known to exhibit such bifurcations namely Shilnikov map, generalised Hénon map, and quadratic map.
Sishu Shankar Muni
doaj   +1 more source

Effect of phosphorus applied as monoammonium phosphate-coated polymers in corn culture under no-tillage system

open access: yesSemina: Ciências Agrárias, 2018
The use of phosphate fertilizers as coated polymers reduces phosphorus losses that occur by adsorption of P to soil particles, thereby providing this essential nutrient for a longer period.
Ana Carolina Marostica Lino   +5 more
doaj   +1 more source

Biopsychosocial Determinants of Hand Function and Its Trajectories Over Five Years in Patients With Hand Osteoarthritis

open access: yesArthritis Care &Research, EarlyView.
Objective This study aimed to investigate hand function trajectories over five years in primary hand osteoarthritis (OA). Additionally, determinants of baseline and longitudinal hand function were assessed. Methods A total of 538 patients with both baseline and five‐year study visits were analyzed.
Annemiek V. E. M. Olde Meule   +4 more
wiley   +1 more source

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