Results 221 to 230 of about 2,196,572 (258)

Image of mathematics: A case study of two women's early mathematics experiences

School Science and Mathematics, EarlyView.
Abstract People often view mathematics as abstract, cold, and irrelevant to real life, and their school experiences likely influence such views. In this case study, we investigated the mathematics experiences of two women who participated in an afterschool girls‐only STEM club 30 years ago when they were in fifth and sixth grades.
Lili Zhou, Elizabeth Suazo‐Flores, Bima Sapkota, Rose Mbewe, Jill Newton   +4 more
wiley   +1 more source

Evaluating Pancreatic Cancer Treatment Strategies Using a Novel Polytopic Fuzzy Tensor Approach. [PDF]

Bioengineering (Basel)
Bilal M, Li C, Alzahrani AK, Aljahdali AK.   +3 more
europepmc   +1 more source

Chaotic analysis, hopf bifurcation and collision of optical periodic solitons in (2+1)-dimensional degenerated Biswas-Milovic equation with Kerr law of nonlinearity. [PDF]

Sci Rep
Al-Sawalha MM, Noor S, Shah R, Yasmin H.
europepmc   +1 more source

Hyperchaotic fractional-order image encryption with Knight's tour scrambling for satellite imagery. [PDF]

Sci Rep
Mamdouh E, Aboshousha A, Alexan W.
europepmc   +1 more source

Analysis, control, and forecasting the dynamics of SIRD models with saturated treatment and nonlinear incidence. [PDF]

Sci Rep
Elsonbaty A, Ramaswamy R, Padmaja S, Teklu SW, Abdelkawy MA, El-Mesady A.   +5 more
europepmc   +1 more source

Fractal-fractional modeling of chronic myelogenous leukemia immune dynamics using Laguerre wavelets method. [PDF]

Sci Rep
Khirsariya SR, Noori N.
europepmc   +1 more source

Phylogenetic Network Models as Graphical Models. [PDF]

Bull Math Biol
Sullivant S.
europepmc   +1 more source

Uniqueness of Algebraic Limit Cycles for Quadratic Systems [PDF]

Journal of Mathematical Analysis and Applications, 2001
All known quadratic systems (QS) having an algebraic limit cycle are contained in five families. The degree of the algebraic curve containing the limit cycle is 4 in four of these families and 2 for the other one. Furthermore, it is also known that if there is another QS having an algebraic limit cycle, it should have at least degree 5. The main result
Jaume Llibre, Hector J. Giacomini, Javier Chavarriga   +2 more
exaly   +4 more sources

Algebraic limit cycles for quadratic polynomial differential systems [PDF]

Discrete and Continuous Dynamical Systems - Series B, 2018
AbstractAlgebraic limit cycles in quadratic polynomial differential systems started to be studied in 1958, and a few years later the following conjecture appeared: quadratic polynomial differential systems have at most one algebraic limit cycle. We prove that a quadratic polynomial differential system having an invariant algebraic curve with at most ...
Claudia Valls, Jaume Llibre
exaly   +9 more sources

Algebraic limit cycles of degree 4 for quadratic systems [PDF]

Journal of Differential Equations, 2004
This interesting paper contains basic concepts on algebraic curves and some results on polynomial differential systems having invariant algebraic curves. The main result is the proof that quadratic systems have exactly four different families of algebraic limit cycles of degree four.
Jaume Llibre, Jordi Sorolla
exaly   +3 more sources