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This monograph offers the first systematic treatment of the theory of minimal surfaces in Euclidean spaces by complex analytic methods, many of which have been developed in recent decades as part of the theory of Oka manifolds (the h-principle in complex analysis). It places particular emphasis on the study of the global theory of minimal surfaces with a given complex structure. Advanced methods of holomorphic approximation, interpolation, and homotopy classification of manifold-valued maps, along with elements of convex integration theory, are implemented for the first time in the theory of minimal surfaces. The text also presents newly developed methods for constructing minimal surfaces in minimally convex domains of Rn, based on the Riemann-Hilbert boundary value problem adapted to minimal surfaces and holomorphic null curves. These methods also provide major advances in the classical Calabi-Yau problem, yielding in particular minimal surfaces with the conformal structure of any given bordered Riemann surface. Offering new directions in the field and several challenging open problems, the primary audience of the book are researchers (including postdocs and PhD students) in differential geometry and complex analysis. Although not primarily intended as a textbook, two introductory chapters surveying background material and the classical theory of minimal surfaces also make it suitable for preparing Masters or PhD level courses.
Algebraic geometry --- Differential geometry. Global analysis --- Analytical spaces --- Mathematical analysis --- Mathematics --- analyse (wiskunde) --- topologie (wiskunde) --- complexe veranderlijken --- statistiek --- wiskunde --- geometrie
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This book highlights the latest research articles presented at the second Digital Marketing & eCommerce Conference in June 2021. Papers include a diverse set of digital marketing and eCommerce-related topics such as sser psychology and behavior in social commerce, influencer marketing in social commerce, social media monetization strategies, social commerce characteristics and their impact on user behavior, branding on social media, social media-based business models, user privacy and security protection on social media, social video marketing and commerce, among other topics.
Economic relations. Trade --- Business policy --- Applied marketing --- Marketing --- Information systems --- Computer. Automation --- ICT (informatie- en communicatietechnieken) --- bedrijfseconomie --- e-books --- e-business --- marketing --- e-commerce --- informatica management
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Algebraic geometry --- Differential geometry. Global analysis --- Analytical spaces --- Mathematical analysis --- Mathematics --- analyse (wiskunde) --- topologie (wiskunde) --- complexe veranderlijken --- statistiek --- wiskunde --- geometrie
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Economic relations. Trade --- Business policy --- Applied marketing --- Marketing --- Information systems --- Computer. Automation --- ICT (informatie- en communicatietechnieken) --- bedrijfseconomie --- e-books --- e-business --- marketing --- e-commerce --- informatica management
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This proceedings volume highlights the latest research presented at the 8th International Conference on Research on National Brand & Private Label Marketing (NB&PL2021). The topics covered include: retailing, private label portfolio and assortment management, marketing of premium store brands, using national brands to exclude (delist) and include, optimal assortment size, consumer store patronage, etc. Several contributions also focus on private label pricing and promotion, especially on the relative pricing of standard and premium private labels, and with regard to the national brands in the assortment. .
Consumer behavior --- Product strategy --- Marketing --- Advertising. Public relations --- merken --- marketing --- consumentengedrag --- consumptie --- CRM (Customer Relationship Management)
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Consumer behavior --- Product strategy --- Marketing --- Advertising. Public relations --- merken --- marketing --- consumentengedrag --- consumptie --- CRM (Customer Relationship Management)
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In recent years, climate change has quickly become a key issue for our society and forces mankind to abandon the traditional combustion-engine-based vehicles. Though electric vehicles prevent direct fossil fuel combustion, their energy consumption still has a significant environmental impact and on-board energy storage systems for long driving ranges remain challenging. Typically, batteries are suited for this high-energy-density storage, but capacitors have recently gained attention because of their high power and cyclability performance. However, significant improvements in energy density of current capacitors are crucial for their large-scale integration in electric vehicles. To increase the energy efficiency, polymer nanodielectrics show great promise as high-energy density structural capacitors: they combine mechanical and energy storage functionality in a composite conductive filler-polymer matrix materials network. The significantly improved energy density results from an exponential increase of dielectric permittivity near the percolation threshold. This work studied the influence of core-shell nanoparticle (NP) materials and morphology when integrated in a polymer on the nanodielectric’s total energy density: E_ρ=ε*E_DBs^2. By introducing an insulating shell on the conductive core, the issues of serious conduction losses and breakdown strength (EDBS) reduction near percolation are alleviated, exploiting even more the permittivity (ε) peak. In this thesis research, inorganic (SiO2 and AlxOyHz) shells were deposited on metallic (Cu) and ceramic (TiCN) cores by heterogeneous nucleation processing. Only TiCN@SiO2 NPs showed complete shell deposition, with thickness varying from 0 to 140 nm via the well-known Stöber process. The NPs were embedded in a polyvinylidene-difluoride (PVDF) matrix for nanodielectric production and characterization of its dielectric properties. Dielectric broadband spectroscopy demonstrated a significant increase in permittivity while ensuring a modest increase in conductivity at low frequencies beyond percolation for both TiCN@SiO2 and Cu@SiO2. However, only TiCN cores had significant impact of shell deposition. A theoretical analysis found that the permittivity follows the Maxwell-Wagner-Sillars polarization theory while breakdown strength was estimated by the quantum conduction mechanisms and their electric field dependence. A master expression was proposed for E_ρ, suggesting the shell permittivity, core/shell thickness ratio and the difference in core work function and shell electron affinity to be the key parameters. By combining this master expression to select both core and shell materials with the successful SiO2 deposition process to optimize the shell thickness, high energy density of the percolation-based nanodielectric can be achieved.
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