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Dissertations / Theses on the topic 'Heaps (Mathematics)'

Author: Grafiati

Published: 27 July 2024

Last updated: 31 July 2025

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1

McGregor-Dorsey, Zachary Strider. "Some properties of full heaps." Thesis, University of Colorado at Boulder, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=3562010.

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<p> A full heap is a labeled infinite partially ordered set with labeling taken from the vertices of an underlying Dynkin diagram, satisfying certain conditions intended to capture the structure of that diagram. The notion of full heaps was introduced by R. Green as an affine extension of the minuscule heaps of J. Stembridge. Both authors applied these constructions to make observations of the Lie algebras associated to the underlying Dynkin diagrams. The main result of this thesis, Theorem 4.7.1, is a complete classification of all full heaps over Dynkin diagrams with a finite number of verti

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2

Shannon, Erica Hilary. "Computing invariant forms for Lie algebras using heaps." Thesis, University of Colorado at Boulder, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10150997.

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<p>In this thesis, I present a combinatorial formula for a symmetric invariant quartic form on a spin module for the simple Lie algebra <b>d</b><sub> 6</sub>. This formula relies on a description of this spin module as a vector space with weights, and weight vectors, indexed by ideals of a particular heap. I describe a new statistic, the profile, on pairs of heap ideals. The profile efficiently encodes the shape of the symmetric difference between the two ideals and demonstrates the available actions of the Weyl group and Lie algebra on any given pair. From the profile, I identify a property c

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3

Bethlehem, Tobias. "Theory of 3-4 Heap." Thesis, University of Canterbury. Computer Science and Software Engineering, 2008. http://hdl.handle.net/10092/1930.

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As an alternative to the Fibonacci heap, and a variation of the 2-3 heap data structure by Tadao Takaoka, this research presents the 3-4 heap data structure. The aim is to prove that the 3-4 heap, like its counter-part 2-3 heap, also supports n insert, n delete-min, and m decrease-key operations, in O(m + nlog n) time. Many performance tests were carried out during this research comparing the 3-4 heap against the 2-3 heap and for a narrow set of circumstances the 3-4 heap outperformed the 2-3 heap. The 2-3 heap has got a structure based on dimensions which are rigid using ternary linking an

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4

Eales, Alan. "Styles of effective heads of mathematics in secondary schools." Thesis, University of Leicester, 1991. http://hdl.handle.net/2381/7642.

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Heads of department are in pivotal positions in secondary schools. Their tasks are well documented but it is not the tasks themselves that are critical for effectiveness but rather HOW the tasks are carried out. This research investigated the styles of effective heads of department and how these styles can be developed. For the first study a panel of judges was used to select seven effective heads of mathematics and, following interviews with each one, pen-pictures of their style were drawn up. The second study used four heads of mathematics who were by reputation regarded as effective and wer

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5

Shute, Hazel Anne. "Mathematical analysis of novel magnetic recording heads." Thesis, University of Plymouth, 1995. http://hdl.handle.net/10026.1/2392.

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As a contribution to increasing the areal density of digital data stored on a magnetic recording medium, this thesis provides mathematical analyses of various magnetic recording heads. Each of the heads considered here is for use in a perpendicular recording system, writing to or reading from a multi-layer medium which includes a high magnetic permeability layer between the data storage layer and the substrate. The exact two-dimensional analysis is performed in each case by one of two methods: either Fourier analysis or conformal mapping. The types of heads analysed include conventional styles

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6

Ogbonna, Nneoma. "Mathematical modelling of agglomerate scale phenomena in heap bioleaching." Master's thesis, University of Cape Town, 2006. http://hdl.handle.net/11427/24385.

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Bioleaching is a naturally occurring process that has been harnessed in metal recovery from low grade ores. The heap bioleaching technique involves complex interactions between chemical reactions, microbial processes and transport processes. The need for efficient heap operations has led to the scientific investigation of heap bioleaching and the development of mathematical models for the process. Over time, the focus of heap leach modelling has moved from models that emphasize particle scale processes to models that emph8size bulk scale processes. In many cases however, the particle scale eff

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7

Bacher, Axel. "Chemins et animaux : applications de la théorie des empilements de pièces." Phd thesis, Université Sciences et Technologies - Bordeaux I, 2011. http://tel.archives-ouvertes.fr/tel-00654805.

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Le but de cette thèse est d'établir des résultats énumératifs sur certaines classes de chemins et d'animaux. Ces résultats sont obtenus en appliquant la théorie des empilements de pièces développée par Viennot. Nous étudions les excursions discrètes (ou chemins de Dyck généralisés) de hauteur bornée; nous obtenons des interprétations combinatoires et des extensions de résultats de Banderier, Flajolet et Bousquet-Mélou. Nous décrivons et énumérons plusieurs classes de chemins auto-évitants, dits chemins faiblement dirigés. Ces chemins sont plus nombreux que les chemins prudents qui forment la c

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8

Wells, Allan R. "Spectral analysis of multi-spindle machining heads /." Online version of thesis, 1994. http://hdl.handle.net/1850/12019.

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9

Dale, Paul David. "Time heals all wounds? : mathematical models of epithelial and dermal wound healing." Thesis, University of Oxford, 1995. http://ora.ox.ac.uk/objects/uuid:aaa4717f-a115-4a34-bb03-d64ce81841d9.

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The mechanisms responsible for the healing of corneal surface wounds are the subject of biological controversy. In particular, the role and source of the regulatory chemical epidermal growth factor (EGF) is an area of intense debate. In the first part of this thesis, we propose a reaction-diffusion model which focuses on the stimulus for increased mitotic and migratory activity due to secretion of EGF. A detailed numerical study of various possible models, with parameter values based on biological data, reveals that, for realistic healing times, EGF must be released by the underlying layers of

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10

Yuen, Kam-chao, and 袁錦秋. "Teachers' and school heads' beliefs and feelings regarding calculator use in primary mathematics in Hong Kong." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1996. http://hub.hku.hk/bib/B31959180.

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11

Yuen, Kam-chao. "Teachers' and school heads' beliefs and feelings regarding calculator use in primary mathematics in Hong Kong." Hong Kong : University of Hong Kong, 1996. http://sunzi.lib.hku.hk/hkuto/record.jsp?B17597481.

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12

Chen, Min-Pyng. ""Who helps you?" : an investigation of social helping networks in the classroom /." St. Lucia, Qld, 2003. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe17505.pdf.

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13

Edress, Mohamed Ammar Isam. "Theory of symmetry and asymmetry in two-dimensional magnetic recording heads." Thesis, University of Exeter, 2016. http://hdl.handle.net/10871/22566.

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As part of the natural evolution and continued optimisation of their designs, current and future magnetic recording heads, used and proposed in technologies such as perpendicular recording, shingled magnetic recording and two-dimensional magnetic recording, often exhibit asymmetry in their structure. They consist of two semi-infinite poles separated by a gap (where the recording field is produced), with an inner gap faces inclined at an angle. Modelling of the fields from asymmetrical structures is complex, and no explicit solutions are currently available (only implicit conformal mapping solu

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14

Phillips, Susan R. "Student Discussions in Cooperative Learning Groups in a High School Mathematics Classroom: A Descriptive Multiple Case Study." University of Akron / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=akron1287086564.

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15

Björkström, Angela. "Is it all in their heads? : A study of the strategies used in mental arithmetic by Swedish pupils in their last years of the obligatory school and in the upper secondary school." Thesis, Mälardalen University, School of Education, Culture and Communication, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-4615.

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<p>Competence in mental arithmetic is recognised by many as essential to be active participants in the fast flowing, high technological society we live in today. Many have noticed pupils’ unwillingness to set their calculators aside and practice this aspect of mathematics when possible. Furthermore, some studies show that pupils’ ability to compute mentally deteriorates as they pass through the school system. Through testing classes in a Swedish obligatory school and an upper secondary school, the aim of this thesis is to see if the goals set by The National [Swedish] Agency for Education r

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16

DeTurk, Patricia Marie. "Lighting the Fire: How Peer-Mentoring Helps Adult Learners Increase Their Interest in STEM Careers: A Case Study at the Community College Level." PDXScholar, 2013. https://pdxscholar.library.pdx.edu/open_access_etds/1095.

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In the U.S., about 7,000 high school students drop out each school day, representing a loss of talent and ability. Concurrently, there are a decreasing number of enrolled students taking science-related courses at the high school and college levels. Adults, who return to obtain their General Educational Development (GED) certification, are an untapped resource that could be steered toward STEM (Science, Technology, Engineering and Mathematics) careers. In this case study, 15 GED students were shown a STEM video, and then peer mentored by 8 CLA (Clinical Laboratory Assistant) students, in a stu

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17

Slabbert, Brian. "Perceived practices of primary school mathematics heads of department." Thesis, 2019. https://hdl.handle.net/10539/29336.

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Research report submitted to the School of Education, Faculty of the Humanities, University of the Witwatersrand, Johannesburg, in partial fulfilment of the requirements for the degree of Masters in Education Johannesburg, July 2019.<br>In this study the researcher investigates what educators perceive the practices of mathematics HoDs to be in independent primary schools. A literature review was conducted and it was determined that there is a need for further research into the practices of HoDs at independent primary schools. A qualitative research approach was decided on and two case studies

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18

Borgen, Katharine L. "Teacher use of language which helps or hinders understanding of mathematics by second language learners." Thesis, 1998. http://hdl.handle.net/2429/7998.

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The purpose of this study was to determine some of the factors relating to teacher use of English in the mathematics classroom that senior second language learners identified as helping or hindering to their learning of the subject. Variations of Flanagan's (1954) Critical Incident Technique and Ginsburg's (1981) Clinical Interview were employed to elicit information from eighteen students with various linguistic backgrounds to identify aspects of the English language and methods of explanation which they found helpful or hindering in their attempt to understand mathematics in English as

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19

Zide, Nkosinati Kennedy. "The role of heads of departments in the teaching of mathematics in primary schools of the Eastern Cape Province." Diss., 2020. http://hdl.handle.net/10500/27143.

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The study sought to investigate the role of Heads of Departments (HoDs) in the teaching of mathematics in primary schools of the Eastern Cape Province in the OR Tambo Inland District using a qualitative approach and a case study design in particular. Data was collected using both semi-structured and focus group interviews with eight purposively selected heads of departments in the district in six schools. Data was analysed using Colaizzi’s method of data analysis from which three themes emerged. The first one was that the current performance management system interfered with the roles

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