1,354,412 research outputs found
Pohlmeyer, Mary A. (Birth, 1897-11-13)
No full textAddress: 1927 Bremen6310/Pg 9/1897/F W/Cinti/Cinti/Mrs. L. FederleOriginal record filed in drawer labeled 'POHLMEYER-PORTER,_M'
Pohlmeyer Reduction Revisited
No full textA systematic group theoretical formulation of the Pohlmeyer reduction is presented. It provides a map between the equations of motion of sigma models with target-space a symmetric space M = F/G and a class of integrable multi-component generalizations of the sine-Gordon equation. When M is of definite signature their solutions describe classical bosonic string configurations on the curved space-time Rt × M. In contrast, if M is of indefinite signature the solutions to those equations can describe bosonic string configurations on Rt × M, M × S1 ϑ or simply M. The conditions required to enable the Lagrangian formulation of the resulting equations in terms of gauged WZW actions with a potential term are clarified, and it is shown that the corresponding Lagrangian action is not unique in general. The Pohlmeyer reductions of sigma models on CP n and AdSn are discussed as particular examples of symmetric spaces of definite and indefinite signature, respectively
Design for subjective well-being in interior architecture
No full textCan interior environments engage people in pleasurable and meaningful experiences and thereby have a positive influence on their happiness? This paper discusses why and how interior architects might want to consider implementing ideas in relation to ‘design for subjective well-being’. Despite of people being the ingredients that bring life to the built environment, it tends to be designed in such a way for them to predominantly only passively absorb the surrounding. Up to date, when designing interior environments, (interior) architects are mainly concerned about the fulfillment of various rather objective considerations. Typical reflections in this respect are: is there enough daylight, how are the acoustics, how is the accessibility and the organization of the inner space? Starting from such premises, the atmosphere of the inner space is given substance. However, empirical studies have shown that long-term happiness is less a matter of one’s circumstances than of the activities that a person engages in. Hence, one could go one step further from viewing the built environment as a static entity, to designing spaces that facilitate desirable activities. In other words, inner environments could aim to stimulate experiences that provide pleasure and meaning to its inhabitants. Subjective well-being (SWB) is an emerging research topic in the field of design sciences. Design models and strategies are being developed in an effort to increase users’ well-being. However, a detailed understanding of how these insights apply to interior architecture still needs to be refined. For this reason, this paper will firstly outline why interior environments could have the potential to contribute to people’s SWB and thereby to become platforms for the full spectrum of human well-being. The second section of the paper reflects on how a deliberate focus on SWB will affect the process of designing interior environments. The Positive Design Framework, developed by Desmet & Pohlmeyer (2013), will be introduced to the (interior) architectural community. Interior architects can use this framework as a guide to assist them in the design process of interior environments that aim to contribute to people’s happiness. A number of examples will demonstrate in an interior architectural vocabulary the value that this framework can have for this discipline.Industrial DesignIndustrial Design Engineerin
Pohlmeyer, Henry (Death, 1885-12-27)
No full textAddress: 21 Green St.Age at death: 66 yrsPg 137/1885/403/MWWr/Germany/Dr. A. L. Carrick/Osseforth/St.John'sOriginal record filed in drawer labeled 'POHLMEYER-PORTER,_M'
Pohlmeyer, Louisa A. M. (Death, 1906-03-01)
No full textAddress: Little Sisters of PoorAge at death: 7562/Pg 29/1906/F W W/Germany/Dr. Henry F. Gau/Theo Homer/St. Joseph Cem.Original record filed in drawer labeled 'POHLMEYER-PORTER,_M'
Elliptic string solutions on R× S 2 and their pohlmeyer reduction
No full textWe study classical string solutions on R× S 2 that correspond to elliptic solutions of the sine-Gordon equation. In this work, these solutions are systematically derived by inverting the Pohlmeyer reduction. A mapping of the physical properties of the string solutions to those of their Pohlmeyer counterparts is established. An interesting element of this mapping is the association of the number of spikes of the string to the topological charge in the sine-Gordon theory. Finally, the adopted parametrization of the solutions facilitates the identification of a dense subset of the moduli space of solutions, where the dispersion relation can be expressed in a closed form, arbitrarily far from the infinite size limit. © 2018, The Author(s)
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Combination of inverse spectral transform method and method of characteristics: deformed Pohlmeyer equation
No full textWe apply a version of the dressing method to a system of four-dimensional nonlinear Partial Differential Equations (PDEs), which contains both Pohlmeyer equation (i.e. nonlinear PDE integrable by the Inverse Spectral Transform Method) and nonlinear matrix PDE integrable by the method of characteristics as particular reductions. Some other reductions are suggested.
A lattice Poisson algebra for the Pohlmeyer reduction of the AdS_5 x S^5 superstring
No full text5 pagesInternational audienceThe Poisson algebra of the Lax matrix associated with the Pohlmeyer reduction of the AdS_5 x S^5 superstring is computed from first principles. The resulting non-ultralocality is mild, which enables to write down a corresponding lattice Poisson algebra
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