Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"Cell Complex"”.
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The Discrete Hodge Star Operator and Poincaré Duality
… and homology in complementary degrees) in a cellular setting without reference to a dual cell complex. More specifically, we provide a proof of this version of Poincaré duality over R via the simplicial discrete Hodge star defined by Scott Wilson in [19] without referencing a dual cell …
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Complex Analysis on Planar Cell Complexes
… is an examination of the theory of discrete complex analysis that arises from the framework of a planar cell complex. Construction of this theory is largely integration-based. A combination of two cell complexes, the double and its associated diamond complex, allows for the development of a …
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Eternal Solutions and Heteroclinic Orbits of a Semilinear Parabolic Equation
… space of heteroclinic orbits is shown to have a cell complex structure, which is finite dimensional when the number of equilibria is finite.
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The CAT(0) dimension of 3-generator Artin groups
… 4 we classify the structure of a canonical cell complex which the group A(m,n,2) acts on for the case where m is even, greater or equal to six and not divisible by four and n is prime, greater or equal to five.<br/><br/>Finally, in Chapter 5 we use the results of Chapter 4 to exhibit classes …
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Lattice gauge theories on Lefschetz thimbles
… 0+1d and 1+1d, gauge groups U(1) and SU(3), complex coupling β and finite chemical potential. These suffer from a sign problem, which prohibits their simulation with traditional MCMC techniques. We alleviate this problem caused by complex actions using a generalization of Picard-Lefschetz …
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OOGENESIS IN TUBULARIA LARYNX AND TUBULARIA INDIVISA (HYDROZOA, ATHECATA)
… Tubularia larynx and T. indivisa, interstitial cells proliferate in the ectoderm of the gonophore stalk and peduncle of the raceme and migrate in the endoderm to the apex of the young gonophore buds where they proliferate in the endoderm to form the entocodon and germ cell mass. Eggs are …
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The Roles of Ca2+ and cAMP in the Nematocyst Discharge of the Sea Anemone Tentacle
… that capture prey using specialized stinging cells called cnidocytes. The cnidocyte contains a nematocyst, which is a capsule containing an inverted, hollow tubule. Prey contacting the tentacle triggers the nematocyst tubule to rapidly evert; a process called discharge. The everting tubule …
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Polyedrisierung dreidimensionaler digitaler Objekte mit Mitteln der konvexen Hülle
Für die Visualisierung dreidimensionaler digitaler Objekte ist im Allgemeinen nur ihre Oberfläche von Interesse. Da von den bildgebenden Verfahren das gesamte räumliche Objekt in Form einer Volumenstruktur digitalisiert wird, muss aus den Daten die Oberfläche berechnet werden. In dieser Arbeit wird …
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Computational studies of cerebellar cortical circuitry
… related signals are encoded by the Purkinje cell complex spike discharge. The results presented in this thesis show that the Purkinje cell simple spike activity robustly signals a rich representation of task specific performance errors, independently from the kinematic signals. The results …
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Skeleton-based visualization of massive voxel objects with network-like architecture
… voxel skeletons of massive voxel objects with complex network-like architecture and for converting these voxel skeletons to piecewise linear geometry, that is triangle meshes and piecewise straight lines. The presented techniques help to tackle the challenge of visualizing and analyzing 3d …