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Dissertations / Theses on the topic 'Groupes de triangle'

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Published: 4 June 2021

Last updated: 13 February 2022

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1

Philippe, Emmanuel. "Géométrie des surfaces hyperboliques." Toulouse 3, 2008. http://thesesups.ups-tlse.fr/270/.

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Dans ce mémoire, on décrit le début du spectre des longueurs de tous les groupes de triangles associés à un triangle hyperbolique (r,p,q) avec r,p,q entiers ordonnés dans l'ordre croissant. On montre alors que la donnée du spectre des longueurs caractérise, sauf si r=3 , la classe d'isométrie d'un tel groupe parmi tous les groupes de triangles<br>In this report, we describe the beginning of the length spectra of the triangles groups associated with a hyperbolic triangle (r, p, q) with r, p, q integers were ordered in the increasing order. We show while the datum of the length spectra character

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2

Mou, Chenqi. "Solving polynomial systems over finite fields : Algorithms, Implementations and applications." Paris 6, 2013. http://www.theses.fr/2013PA066805.

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Résolution de systèmes polynomiaux sur les corps finis est d’un intérêt particulier en raison de ses applications en Cryptographie, Théorie du Codage, et d’autres domaines de la science de l’information. Dans cette thèse, nous étudions plusieurs aspects importants théoriques et informatiques pour résolution de systèmes polynomiaux sur les corps finis, en particulier sur les deux outils largement utiliss: bases de Gröbner et ensembles triangulaires. Nous proposons des algorithmes efficaces pour le changement de l’ordre des bases de Gröbner d’idéaux de dimension zéro en utilisant le faible densi

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3

Smilga, Ilia. "Pavages de l'espace affine." Thesis, Paris 11, 2014. http://www.theses.fr/2014PA112298/document.

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Pour tout entier naturel impair d, on construit un domaine fondamental pour l'action sur l'espace affine de dimension 2d+1 de certains groupes de transformations affines libres non abéliens, discrets, agissant proprement et de partie linéaire Zariski-dense dans SO(d+1, d). Pour tout groupe de Lie semisimple réel non compact G, on construit ensuite un groupe de transformations affines de son algèbre de Lie g qui est libre non abélien, discret, agit proprement sur g et a sa partie linéaire Zariski-dense dans Ad G. Enfin, on donne quelques résultats sur le comportement local des fonctions harmoni

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4

Marion, Claude Miguel Emmanuel. "Triangle groups and finite simple groups." Thesis, Imperial College London, 2009. http://hdl.handle.net/10044/1/4371.

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This thesis contains a study of the spaces of homomorphisms from hyperbolic triangle groups to finite groups of Lie type which leads to a number of deterministic, asymptotic,and probabilistic results on the (p1, p2, p3)-generation problem for finite groups of Lie type. Let G₀ = L(pn) be a finite simple group of Lie type over the finite field Fpn and let T = Tp1,p2,p3 be the hyperbolic triangle group (x,y : xp1 = yp2 = (xy)p3 = 1) where p1, p2, p3 are prime numbers satisfying the hyperbolic condition 1/p1 + 1/p2 + 1/p3 < 1. In general, the size of Hom(T,G₀) is a polynomial in q, where q = pn, w

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5

Thompson, James Matthew. "Complex hyperbolic triangle groups." Thesis, Durham University, 2010. http://etheses.dur.ac.uk/478/.

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We prove several discreteness and non-discreteness results about complex hyperbolic triangle groups and discover two new lattices. These results use geometric (explicit construction of a fundamental domain), group theoretic and arithmetic methods.

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6

Monaghan, Andrew. "Complex hyperbolic triangle groups." Thesis, University of Liverpool, 2013. http://livrepository.liverpool.ac.uk/14033/.

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In this thesis we study the discreteness criteria for complex hyperbolic triangle groups, generated by reflections in the complex hyperbolic 2-space. A complex hyperbolic triangle group is a group of isometries of the complex hyperbolic plane generated by three complex reflections. We study discreteness of some of these groups using arithmetic and geometric methods. We show that certain complex hyperbolic triangle groups of signature (p,p,2p) and (p,q,pq/(q-p)) are not discrete. The arithmetic methods we use are those studied by Conway and Jones and Parker. We also extend these results further

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7

Williams, Alun G. T. "Studies on generalised triangle groups." Thesis, Heriot-Watt University, 2000. http://hdl.handle.net/10399/580.

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8

Edvardsson, Elisabet. "Modular forms for triangle groups." Thesis, Karlstads universitet, Institutionen för matematik och datavetenskap (from 2013), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-47984.

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Modular forms are important in different areas of mathematics and theoretical physics. The theory is well known for the modular group PSL(2,Z), but is also of interest for other Fuchsian groups. In this thesis we will be interested in triangle groups with a cusp. We review some theory about mapping of hyperbolic triangles in order to derive an expression for the Hauptmodul of a triangle group, and use this to write a SageMath-program that calculates the Fourier series of the Hauptmodul. We then review some of the results presented in [4] that describe generalizations of well known concepts suc

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9

AFONSO, LUIS FERNANDO CROCCO. "REPRESENTATIONS OF TRIANGLE GROUPS IN COMPLEX HYPERBOLIC." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2003. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=4123@1.

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COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR<br>O principal objetivo deste trabalho é o estudo de representações que preservam tipo rho:Gamma - PU(2,1) de grupos triangulares Gamma no grupo de isometrias holomorfas do espaço hiperbólico complexo de dimensão dois H2C. O grupo triangular Gamma(p,q,r) é o grupo gerado por reflexões nos lados de um triângulo geodésico, com ângulos pi/p, pi/q e pi/r, no plano hiperbólico. Neste trabalho, nossas atenções são voltadas para os grupos Gamma (4,4,infinito) e Gamma(4,infinito,infinito). Demonstramos, entre outros resultados: Par

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10

Mazhar, Siddiqua. "Composition of permutation representations of triangle groups." Thesis, University of Newcastle upon Tyne, 2017. http://hdl.handle.net/10443/3857.

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A triangle group is denoted by (p, q, r) and has finite presentation (p, q, r) = hx, y|xp = yq = (xy)r = 1i. In the 1960’s Higman conjectured that almost every triangle group has among its homomorphic images all but finitely many of the alternating groups. This was proved by Everitt in [6]. In this thesis, we combine permutation representations using the methods used in the proof of Higman’s conjecture. We do some experiments by using GAP code and then we examine the situations where the composition of a number of coset diagrams for a triangle group is imprimitive. Chapter 1 provides the intro

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11

Stephenson, Philip Charles Robertson. "Subgroups of some (2, 3, n) triangle groups." Thesis, University of Glasgow, 1992. http://theses.gla.ac.uk/3054/.

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As an abstract group, the (2,3,n) triangle group has the presentation mit _n = < x,y : x^2 = y^3 = (yx)^n = 1 > This thesis is concerned with subgroups of finite index in mit 9, mit _11 and mit 13. With a subgroup of finite index, u, in the (2,3,11) triangle group, we associate a quintuple of non-negative integers (u,p,e,f,g), with u 1 and 5u = 132(p - 1) + 33e + 44f + 60g. We show in Theorem 1.4.6 that each quintuple, satisfying the conditions, corresponds to a subgroup of mit 11. With a subgroup of finite index, u, in the (2,3,12) triangle group, we associate a quintuple of non-negative inte

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12

Lynch, Keith. "On triangles and quadrilaterals of groups." Diss., Virginia Tech, 1995. http://hdl.handle.net/10919/38574.

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This dissertation demonstrates the existence of a pair of algebraic and geometric structures on triangles of groups and on quadrilaterals of groups. These structures are an automatic and biautomatic structure. In addition, this paper also discusses the growth function for the quadrilaterals. We show that these groups have these desired structures and discuss what they are. We also give an extraordinary example of a pair of quadrilaterals of groups that are defined nearly identically but do not behave alike.<br>Ph. D.

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13

Hoban, Ryan. "Local rigidity of triangle groups in Sp(4,R)." College Park, Md.: University of Maryland, 2009. http://hdl.handle.net/1903/9280.

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Thesis (Ph.D.) -- University of Maryland, College Park, 2009.<br>Thesis research directed by: Dept. of Mathematics. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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14

Sun, Yongzhong. "On degrees of alternating and special linear groups as quotients of triangle groups." Thesis, University of Birmingham, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.289296.

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15

Usnich, Alexandr. "Sur le groupe de Cremona et ses sous-groupes." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2008. http://tel.archives-ouvertes.fr/tel-00812808.

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Ce travail peut être divisé en trois partie: 1. Théorie des groupes. Il s'agit ici d'une étude de la structure du groupe T de Thompson. On explique la notion de la mutation linéaire par morceaux et on obtient la nouvelle présentation de ce groupe en termes des génerateurs et relations. 2. Géometrie birationnelle. On étudie en détail le groupe de Cremona qui est un groupe des automorphismes birationnels du plan projectif. En particulier on s'interesse à son sous-groupe Symp des elements qui préserve le crochet de Poisson dit logarithmique, aussi bien qu'à un sous-groupe H engendré par SL(2,Z) e

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16

Chappelon, Jonathan. "Graphes de Steinhaus réguliers et triangles de Steinhaus dans les groupes cycliques." Phd thesis, Université du Littoral Côte d'Opale, 2008. http://tel.archives-ouvertes.fr/tel-00371329.

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La première partie de la thèse porte sur les graphes de Steinhaus réguliers. On commence par obtenir une nouvelle preuve du théorème de Dymacek, selon lequel toute matrice de Steinhaus associée à un graphe pair est bisymétrique, en exhibant une relation entre les éléments de l'antidiagonale d'une matrice de Steinhaus et les degrés des sommets du graphe associé. Ce théorème est ensuite utilisé pour montrer que toute matrice de Steinhaus associée à un graphe régulier de degré impair admet une grande sous-matrice multisymétrique. On étudie alors les matrices de Steinhaus multisymétriques, en part

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17

Krämer, Stefan [Verfasser]. "Numerical calculation of automorphic functions for finite index subgroups of triangle groups / Stefan Krämer." Bonn : Universitäts- und Landesbibliothek Bonn, 2015. http://d-nb.info/1079273379/34.

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18

Bass, Di. "The coach-parent-athlete triangle : an investigation in age group swimming." Thesis, Loughborough University, 2008. https://dspace.lboro.ac.uk/2134/15134.

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This thesis analyses the relationships that exist between the coach, the parent and the athlete within the context of age-group swimming. The interest in this area grew from the researcher's own experiences as a swimmer, a parent of swimmers and a swimming coach together with the underlying belief that the three members or what Byrne (1993) terms the 'sporting triangle' approach swimming experiences with different needs and wants. If other members of this sporting triangle fail to recognise or understand these needs then conflict may arise which could detract from the positive sporting experie

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19

Li, Jun. "ARTIN PRESENTATIONS AND CLOSED 4-MANIFOLDS." Oberlin College Honors Theses / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=oberlin14975050044205.

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20

Stenbeck, Joakim, and Robin Cabander. "The Link between Internal Marketing and Customer Relationship Management : A Case Study of one Nordea Call Center in Sweden." Thesis, Uppsala University, Department of Business Studies, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-88608.

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<p>Purpose: The purpose of this thesis is to increase the understanding of the link between internal marketing and customer relationship management by conducting a case study of one Nordea call center.</p><p>Background: Keeping existing customers is less expensive than acquiring new ones. Nowadays, up to sixty percent of marketing budgets are being dedicated towards retaining customers. So forth customer relationship manage-ment is slowly beginning to penetrate the banking industry as sustaina-ble relationships between organizations and their customers are becom-ing more evident.</p><p>Theory:

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21

Beck, Vincent. "Algèbre des invariants relatifs pour les groupes de réflexion- catégorie stable." Phd thesis, Université Paris-Diderot - Paris VII, 2008. http://tel.archives-ouvertes.fr/tel-00366444.

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Cette thèse est composée de deux parties indépendantes et d'une annexe. Le thème principal de la première partie tourne autour des groupes de réflexions tandis que la deuxième partie aborde la notion de catégorie stable. L'annexe s'attarde sur les conventions de signes dans les catégories de complexes. <br /><br />Dans la première partie, on considère un groupe de réflexion G agissant sur l'espace vectoriel V dans sa représentation de réflexions. On étudie alors la composante isotypique relativement à un caractère linéaire de G de l'algèbre produit tensorielle de l'algèbre symétrique du dual d

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22

Kristoffersson, Henrik, and Victor Månsson. "Apple OS X i AD-Miljö : möjligheter och begränsningar." Thesis, Högskolan Kristianstad, Sektionen för hälsa och samhälle, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:hkr:diva-13852.

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Apples datorer med operativsystemet OS X blir allt vanligare på arbetsplatserna. För att företagets IT-avdelning ska kunna upprätthålla en stabil och säker miljö strävar man efter att standardisera system och hårdvara. Verkligheten stämmer inte alltid överens med IT-avdelningens strävan och anställda vill i ökande grad använda sig av produkter de valt själva. Arbetet har undersökt möjligheterna och begränsningarna med att integrera Apple OS X i Microsofts Active Directory. För att kunna besvara de frågor som använts som avgränsning inleddes arbetet med att metodiskt stud

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23

Martos, Prieto Ruben. "The Baum-Connes conjecture for Quantum Groups : stability properties and K-theory computations." Thesis, Sorbonne Paris Cité, 2018. http://www.theses.fr/2018USPCC198/document.

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Cette thèse porte sur la conjecture de Baum-Connes pour les groupes quantiques. Le but principal de ce travail est l'étude de la stabilité de la conjecture de Baum-Connes par certaines constructions de groupes quantiques discrets.Dans un premier temps, nous réalisons une étude détaillé et approfondie de la reformulation catégorielle de la conjecture de Baum-Connes d'après les travaux de R. Meyer et R. Nest. Ensuite, nous appliquons ces techniques au cas concret des groupes quantiques discrets sans torsion.Nous réalisons une étude exhaustive des produits croisés afin de pouvoir les manipuler ai

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24

Santos, Marcelo Tadeu dos. "Semelhança de triângulos e geometria dinâmica o trabalho em grupo na aprendizagem de conceitos." Pontifícia Universidade Católica de São Paulo, 2013. https://tede2.pucsp.br/handle/handle/10945.

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Made available in DSpace on 2016-04-27T16:57:22Z (GMT). No. of bitstreams: 1 Marcelo Tadeu dos Santos.pdf: 6175692 bytes, checksum: db223d86b957f15bd34eb790d06ed8ee (MD5) Previous issue date: 2013-02-20<br>Secretaria da Educação do Estado de São Paulo<br>This research describes a qualitative research. The theme is based on model theory of geometric thought the couple's van Hiele and assumptions relating to the use of technology-mediated instructional strategies for learning geometry. The proposal aims to enable students of the ninth year of elementary school reinforce preconceptions and buil

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25

Duong, Duc Hieu, Thi Phuong Anh Le, Thi Thu Nga Bui, et al. "Nematode communities act as bio-indicator of status and processes of an agricultural soil ecosystem in Thanh An, Binh Phuoc province." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-190723.

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Nematode communities in black pepper (Piper nigrum L.) agricultural soil in Thanh An, Binh Phuoc province, were investigated. Soil samples were collected in February 2012 at 9 selected sites belonging to 3 pepper groves. The structure of nematode communities and critical ecological indices were determined to estimate environmental status. 26 genera were found. Of those, plant parasitic nematodes such as Meloidogyne, Helicotylenchus, Hoplolaimus, Psilenchus, and Tylenchidae always appear with high frequency and density, whereas the carnivorous nematodes were rarely detected. The nematode densit

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Duong, Duc Hieu, Thi Phuong Anh Le, Thi Thu Nga Bui, et al. "Nematode communities act as bio-indicator of status and processes of an agricultural soil ecosystem in Thanh An, Binh Phuoc province: Research article." Technische Universität Dresden, 2014. https://tud.qucosa.de/id/qucosa%3A29102.

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Nematode communities in black pepper (Piper nigrum L.) agricultural soil in Thanh An, Binh Phuoc province, were investigated. Soil samples were collected in February 2012 at 9 selected sites belonging to 3 pepper groves. The structure of nematode communities and critical ecological indices were determined to estimate environmental status. 26 genera were found. Of those, plant parasitic nematodes such as Meloidogyne, Helicotylenchus, Hoplolaimus, Psilenchus, and Tylenchidae always appear with high frequency and density, whereas the carnivorous nematodes were rarely detected. The nematode densit

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27

(11199984), Frankie Chan. "Finite quotients of triangle groups." Thesis, 2021.

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Extending an explicit result from Bridson–Conder–Reid, this work provides an algorithm for distinguishing finite quotients between cocompact triangle groups Δ ?and lattices Γ of constant curvature symmetric 2-spaces. Much of our attention will be on when these lattices are Fuchsian groups. We prove that it will suffice to take a finite quotient that is Abelian, dihedral, a subgroup of PSL(<i>n</i>,<b>F</b><sub><i>q</i></sub>) (for an odd prime power q), or an Abelian extension of one of these 3 groups. For the latter case, we will require and develop an approach for creating group extensions u

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28

Lewis, Paul Wayne Jr. "Lagrangian Representations of (p, p, p)-triangle Groups." 2011. http://trace.tennessee.edu/utk_graddiss/1203.

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We obtain explicit formulae for Lagrangian representations of the (p, q, r)-triangle group into the group of direct isometries of the complex hyperbolic plane in the case where p=q=r. Numerically approximated matrix generators of representations of the (p, p, p)-triangle group are obtained using a special basis. The numerical approximations are then used to guess the exact generators by a process utilizing the LLL algorithm. The matrices are proved rigorously to generate Lagrangian representations of the (p, p, p)-triangle group and are applied to the problem of deciding whether or not

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29

Hsu, Shu-Nu, and 徐淑女. "Experimental Study On Triangle Arrangement Of Porous Cylinder Groups for Pier Scour Countermeasures." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/32862052957856010725.

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30

Smith, Katherine M. "Principal subgroups of the nonarithmetic Hecke triangle groups and Galois orbits of algebraic curves /." 2000. http://hdl.handle.net/1957/16828.

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31

Oberholzer, Petra Malan. "Bemagtiging van kliënte in die maatskaplike werk binne die konteks van armoede." 1997. http://hdl.handle.net/10500/15685.

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Summaries in English and Afrikaans<br>Text in Afrikaans<br>Die probleem van armoede is aangespreek deur middel van die groepwerkproses, waardeur mense sodanig bemagtig is dat die kringloop van armoede verbreek kon word. 'n Kwasi-eksperimentele navorsingsontwerp is gebruik met die groepwerkprogram as onafhanklike veranderlike en die algemene tevredenheid en graad van bemagtiging van die groeplede as die afhanklike veranderlikes. Slegs die voorondersoekgroep en twee eksperimentele groepe is aan die program onderwerp, maar nie die kontrolegroepe nie. n Voor- en natoets is deur aldie groeplede vol

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32

Dahlberg, Veronika. "Det handlar om formativ bedömning : Några lärares uppfattningar om formativ bedömning i träningsskolan." Thesis, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-43275.

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The purpose of this study is to deepen the knowledge of how feedback and evaluation with a focus on formative assessment is perceived in terms of what, how and why by a few teachers working in special needs school with a focus on training school. To answer the purpose of this study three questions were formed, What is the teachers` understanding of formative assessment in relation to other practices of assessment and feedback? How do the teachers say they practice feedback and assessment with a formative assessment focus in their teaching practices? What pros and cons do some teachers believe

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Liu, Chiu-fen, and 劉秋芬. "The Integration of “Peer Group Strategy” and Computer Graphics into the Learning of Mathematical Concepts－In the Unit of “A Triangle’s Circumcenter, Incentre, And Centroid.”." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/89728991571736991811.

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碩士<br>國立臺南大學<br>教育學系課程與教學碩士班<br>99<br>The purpose of this study is to develop a “Peer Group Strategy (PGS)”, and apply the strategy in learning mathematical concepts. The course activities intended to introduce mathematical concepts through using computer graphics with mutual supports among students to improve learning outcomes. A quasi- experimental research was conducted to evaluate the learning performance and students’ attitudes. The experiments included 67 9th Graders from a junior high school in southern Taiwan. The PGS was used in the experimental group, comprising 33 students, whil

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