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The classical Riemann-Roch theorem is extended to solutions of elliptic equations on manifolds with conical points.

Boundary value problems for pseudodifferential operators (with or without the transmission property) are characterised as a substructure of the edge pseudodifferential calculus with constant discrete asymptotics. The boundary in this case is the edge and the inner normal the model cone of local wedges. Elliptic boundary value problems for non-integer powers of the Laplace symbol belong to the examples as well as problems for the identity in the interior with a prescribed number of trace and potential conditions. Transmission operators are characterised as smoothing Mellin and Green operators with meromorphic symbols.

Air freight sector has been a growing market worldwide for many years. The rapid growth of scheduled freight aircraft services in particular has been a remarkable feature of the international airline industry during the past decades. Air freight traffic has grown faster than passenger traffic and the production of goods has become more dependent upon air freight services that link global supply chains together. Air transportation is useful when the goods must be delivered quickly and it also allows for more flexible hub-and-spoke networking structures, which are able to offset some of the problems of indirect flows. The concept of developing regional air-cargo centres can be seen from many different perspectives. The most important factors in airport location selection are connectivity to existing road and rail transport networks and current or potential freight traffic volumes. Right location allows firms to develop their own resources, consolidate their competitive position and nurture their growth. Once the company has located it is hard to relocate, so that is why the location decision has to be made carefully. Purpose: The main purpose of this thesis was to reveal the key factors, either positive or negative, which can affect the decision of air freight operators to relocate their express services to smaller airports.   Methodology: The chosen method for this thesis was the mono method because the data collection technique was qualitative. Based on that interviews, the authors finalized their topic and their research questions and built question lists, one for the Jönköping airport (Axamo), one for the companies that already operate in Jönköping airport and one for companies that do not operate there. The authors decided to have semi-structured interviews with all the interviewees in order to cover the different themes of their research.   Findings: The main findings from analysing the empirical data revealed that there are many different positive and negative factors that can affect the decision making for relocation of freight operators. The most important that were identified concern the airport’s infrastructure, location, quality of provided services, number of passenger flights and price policy. Moreover, the weather conditions at the region, the customers’ demand and connectivity with road and rail networks are also very influential.

Urbanization decreases the amount of natural habitat available to wildlife but some species are able to adapt to and even thrive in human-dominated landscapes. When humans and wildlife live in close proximity the number of conflicts increase. Natural resource and agricultural departments were not designed to handle urban problems or the number of complaints that arise in urban areas, and the nuisance wildlife control (NWC) industry has developed in response to the unmet demand for assistance. Members of the wildlife profession have expressed concerns over the impact the nuisance wildlife control industry may have on wildlife, the public, and wildlife management, but no national studies were found that examined the size, growth, and/or economic impact of the industry. The most recent national reviews of regulation and oversight took place ≥10 years ago. This study examines 2 broad features of the NWC industry: 1) size and economic impact of the industry in the U.S. (e.g., number of businesses, annual sales revenue generated); and 2) the national regulatory environment. A total of 3,153 NWC businesses were identified in the U.S., and a conservative annual sales figure of $140 million was estimated for the wildlife removal services only. Changes in the regulatory environment from 1997-2007 were examined using a 10-category scoring system developed during an earlier study, and comparing the results of both studies. Changes were observed (P ≤ 0.05) for 9 of 10 characteristics, and the average cumulative score rose from 2.20 to 4.28 out of 10.0.

The Ambarzumyan Theorem states that for the classical Sturm-Liouville problem on $[0,1]$, if the set of Neumann eigenvalue $sigma_N={(npi)^2: nin { f N}cup { 0}}$, then the potential function $q=0$. In this thesis, we study the analogues of Ambarzumyan Theorem for the Sturm-Liouville operators on star-shaped graphs with 3 edges of different lengths. We first solve the direct problem: to find out the set of eigenvalues when $q=0$. Then we use the theory of transformation operators and Raleigh-Ritz inequality to prove the inverse problem. Following Pivovarchik's work on star-shaped graphs of uniform lengths, we analyze the Kirchoff condition in detail to prove our theorems. In particular, we study the cases when the lengths of the 3 edges satisfy $a_1=a_2=frac{1}{2}a_3$ or $a_1=frac{1}{2}a_2=frac{1}{3}a_3$. Furthermore, we work on Neumann boundary conditions as well as Dirichlet boundary conditions. In the latter case, some assumptions about $q$ have to be made.

Thesis (M.S. in Engineering Acoustics)--Naval Postgraduate School, December 2003. / Thesis advisor(s): Kevin Smith, Roy Streit. Includes bibliographical references (p. 95-100). Also available online.

The purpose of this thesis is to explore the different Internet tools in a marketing strategy, which can be used within a tour operator in Sweden. The question is why did they choose these specifics Internet tools and how do they use it. Further, this project aims to contribute to the development of new knowledge regarding the online marketing strategies in the outbound tourism market.

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The purpose of this dissertation is to review the salient features of non-Hermitian quantum mechanics. An introduction to Hermitian quantum mechanics is included to make this review as accessible as possible. Attempts at formulating a consistent physical theory are introduced, before examining non-Hermitian theories' uses as convenient computational frameworks. Particular emphasis is placed on recent developments in open quantum systems that utilise non-Hermitian Hamiltonians. Chapter four introduces a logic that maps a non-Hermitian Hamiltonian onto a non-Hamiltonian algebra that has a Hermitian Hamiltonian. This was put forward by Sergi, who then goes on to show its application to a two level system. The time evolution is then derived in terms of the density matrix model. This system can then be used to analyse di erent types of decay such as coherence and population di erence. This serves to illustrate the usefulness of the approach. / Thesis (M.Sc.)-University of KwaZulu-Natal, Pietermaritzburg, 2013.