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Growth of Primitive Elements in Free Groups [PDF]

open access: yesJournal of the London Mathematical Society, 2014
In the free group $F_k$, an element is said to be primitive if it belongs to a free generating set. In this paper, we describe what a generic primitive element looks like.
Puder, Doron, Wu, Conan
core   +2 more sources

Counting Primitive Elements in Free Groups [PDF]

open access: yesGeometriae Dedicata, 2001
Primitive elements in free groups are those elements that can be part of a free basis of the group. The purpose of this paper is to study the distribution of the primitive elements inside of a free group. The way for doing this is to relate them to the concentric balls of elements.
José Burillo, Enric Ventura
openaire   +1 more source

Dynamic Characteristics of Joined Steel and Carbon Fiber-Reinforced Plastic Tubes: Experimental and Numerical Investigation [PDF]

open access: yesMechanics of Advanced Composite Structures, 2017
The fundamental frequencies and mode shapes of steel and carbon fiber–reinforced plastic (CFRP) cylindrical shells with steel inserts were investigated using finite element analysis and modal testing.
M. Shakouri   +3 more
doaj   +1 more source

Finite Element Formulation for Free Vibration and Stability of Timoshenko beam [PDF]

open access: yesمجله مدل سازی در مهندسی, 2014
In this paper, a two-node element has been suggested for analyzing stability and free vibration of Timoshenko beam. A cubic displacement polynomial and a quadratic rotational field are selected for this element.
Abbas Moallemi-Oreh, محمد کارکن
doaj   +1 more source

Temperature-dependent 2-dimensional porous FG plates free vibration analysis using finite element approach [PDF]

open access: yesINCAS Bulletin, 2022
This work aims to address the free vibration analysis of two-dimensional porous 2-D FG plates with temperature-dependent properties that are subjected to thermomechanical loading.
Inala RAMU
doaj   +1 more source

Stress finite element models for determining the frequencies of free oscillations [PDF]

open access: yesИнженерно-строительный журнал, 2016
Development of calculation methods, allowing determining the lower limits frequencies of free oscillations is actual. Such methods, in combination with the decisions by the method of finite element in displacements, will let to assess the accuracy of the
Yu.Ya. Tyukalov
doaj   +1 more source

The Unipotency of the Free Group with Linear Representation of Dimension 11

open access: yesJournal of Harbin University of Science and Technology, 2022
For the unipotent problem of binary-generated free groups, the new trace equations are obtained by intensive study of combinatorial properties of the primitive element of the binary-generated free groups.
YANG Xin-song, XIA Xiao-dan
doaj   +1 more source

Stress concentration analysis of plate with circular hole : elasticity theory and finite element comparison [PDF]

open access: yes, 2014
Stress concentration factor for a plate with circular free stress hole subjected to a uniform far field tension in single was investigated in this study.
Masrol, S.R., Siswanto, W.A.
core   +1 more source

Primitive elements in free groups [PDF]

open access: yesProceedings of the American Mathematical Society, 1989
Let F n {F_n} denote the free group of rank n n generated by x 1 , x 2 , … , x n ...
openaire   +2 more sources

Finite Element Analysis of Sheet Metal U-Bending Using Free Form Surface [PDF]

open access: yesEngineering and Technology Journal, 2012
This paper deals with the optimization of tools geometry in sheet metal forming U-bending in order to reduce the equivalent strain, equivalent stress, and thickness change after forming.
Shakir Madhloom Gatea   +1 more
doaj   +1 more source

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