Search Results - "Shonkwiler, Clayton"
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1
Fusion Frame Homotopy and Tightening Fusion Frames by Gradient Descent
Published in The Journal of fourier analysis and applications (01-08-2023)“…Finite frames, or spanning sets for finite-dimensional Hilbert spaces, are a ubiquitous tool in signal processing. There has been much recent work on…”
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2
Symplectic geometry and connectivity of spaces of frames
Published in Advances in computational mathematics (01-02-2021)“…Frames provide redundant, stable representations of data which have important applications in signal processing. We introduce a connection between symplectic…”
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3
THE SYMPLECTIC GEOMETRY OF CLOSED EQUILATERAL RANDOM WALKS IN 3-SPACE
Published in The Annals of applied probability (01-02-2016)“…A closed equilateral random walk in 3-space is a selection of unit length vectors giving the steps of the walk conditioned on the assumption that the sum of…”
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4
Probability Theory of Random Polygons from the Quaternionic Viewpoint
Published in Communications on pure and applied mathematics (01-10-2014)“…We build a new probability measure on closed space and plane polygons. The key construction is a map, given by Hausmann and Knutson, using the Hopf map on…”
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5
Robocasting of Ceramic Fischer-Koch S Scaffolds for Bone Tissue Engineering
Published in Journal of functional biomaterials (30-04-2023)“…Triply Periodic Minimal Surfaces (TPMS) are promising structures for bone tissue engineering scaffolds due to their relatively high mechanical energy…”
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6
Higher-dimensional linking integrals
Published in Proceedings of the American Mathematical Society (01-04-2011)“…We derive an integral formula for the linking number of two submanifolds of the n, of the product S^n \times \mathbb{R}^m…”
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7
Admissibility and frame homotopy for quaternionic frames
Published in Linear algebra and its applications (15-07-2022)“…We consider the following questions: when do there exist quaternionic frames with given frame spectrum and given frame vector norms? When such frames exist, is…”
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Toric symplectic geometry and full spark frames
Published in Applied and computational harmonic analysis (01-11-2022)“…The collection of d×N complex matrices with prescribed column norms and singular values forms an algebraic variety, which we refer to as a frame space…”
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9
New Stick Number Bounds from Random Sampling of Confined Polygons
Published in Experimental mathematics (02-10-2022)“…The stick number of a knot is the minimum number of segments needed to build a polygonal version of the knot. Despite its elementary definition and relevance…”
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10
Distributions of distances and volumes of balls in homogeneous lens spaces
Published in Differential geometry and its applications (01-02-2021)“…Lens spaces are a family of manifolds that have been a source of many interesting phenomena in topology and differential geometry. Their concrete construction,…”
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11
The Complete Dirichlet-to-Neumann Map for Differential Forms
Published in The Journal of geometric analysis (01-10-2013)“…The Dirichlet-to-Neumann map for differential forms on a Riemannian manifold with boundary is a generalization of the classical Dirichlet-to-Neumann map which…”
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12
Random Triangles and Polygons in the Plane
Published in The American mathematical monthly (07-02-2019)“…In 1997, Jean-Claude Hausmann and Allen Knutson introduced a natural and beautiful correspondence between planar n-gons and the Grassmann manifold of 2-planes…”
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13
Spherical geometry and the least symmetric triangle
Published in Geometriae dedicata (02-02-2019)“…We study the problem of determining the least symmetric triangle, which arises both from pure geometry and from the study of molecular chirality in chemistry…”
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14
New Superbridge Index Calculations from Non-Minimal Realizations
Published 14-06-2022“…Journal of Knot Theory and Its Ramifications 31 (2022), no. 10, 2250063 Previous work used polygonal realizations of knots to reduce the problem of computing…”
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15
All Prime Knots Through 10 Crossings Have Superbridge Index $\leq 5
Published 20-12-2021“…Journal of Knot Theory and Its Ramifications 31 (2022), no. 4, 2250023 This paper gives new upper bounds on the stick numbers of the knots $9_{18}$, $10_{18}$,…”
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16
Geometric Approaches to Matrix Normalization and Graph Balancing
Published 09-05-2024“…Normal matrices, or matrices which commute with their adjoints, are of fundamental importance in pure and applied mathematics. In this paper, we study a…”
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17
New Computations of the Superbridge Index
Published 28-09-2020“…Journal of Knot Theory and Its Ramifications 29 (2020), no. 14, 2050096 The knots $8_1$, $8_2$, $8_3$, $8_5$, $8_6$, $8_7$, $8_8$, $8_{10}$, $8_{11}$,…”
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18
Fusion Frame Homotopy and Tightening Fusion Frames by Gradient Descent
Published 23-08-2022“…Journal of Fourier Analysis and Applications 29 (2023), no. 4, 51 Finite frames, or spanning sets for finite-dimensional Hilbert spaces, are a ubiquitous tool…”
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19
THE EXPECTED TOTAL CURVATURE OF RANDOM POLYGONS
Published in American journal of mathematics (01-04-2015)“…We consider the expected value for the total curvature of a random closed polygon. Numerical experiments have suggested that as the number of edges becomes…”
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20
Toric Symplectic Geometry and Full Spark Frames
Published 07-07-2022“…Applied and Computational Harmonic Analysis 61 (2022), 254-287 The collection of $d \times N$ complex matrices with prescribed column norms and prescribed…”
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