Relevant bibliographies by topics / Timelike surface

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Timelike surface'

Author: Grafiati
Published: 4 June 2021
Last updated: 2 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Timelike surface.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Timelike surface"

1

Fouad Naghi, Monia, and Rashad A. Abdel-Baky. "Timelike sweeping surfaces and singularities." International Journal of Geometric Methods in Modern Physics 18, no. 01 (2020): 2150006. http://dx.doi.org/10.1142/s0219887821500067.

Full text
Abstract:
We consider a timelike sweeping surface with rotation minimizing frames in Minkowski 3-Space [Formula: see text]. We introduce a new geometric “invariant”, which demonstrates the geometric properties and local singularities of the surface. Subsequently, we give the sufficient and necessary conditions for this surface to be a developable ruled surface. Finally, the singularities of these ruled surfaces are investigated.
APA, Harvard, Vancouver, ISO, and other styles
2

Abdel-Baky, Rashad A., Nadia Alluhaibi, Akram Ali, and Fatemah Mofarreh. "A study on timelike circular surfaces in Minkowski 3-space." International Journal of Geometric Methods in Modern Physics 17, no. 06 (2020): 2050074. http://dx.doi.org/10.1142/s0219887820500747.

Full text
Abstract:
This paper studies a smooth one-parameter family of standard Lorentzian circles with fixed radius. Such a surface is called a timelike circular surface with constant radius. We call each circle a generating circle. A new type of timelike circular surfaces was identified and coined as the timelike tangent circular surface. The new timelike tangent circular surface has the property of all generating circles being lines of curvature and its Gaussian and mean curvatures being independent of the geodesic curvature of the spherical indicatrix.
APA, Harvard, Vancouver, ISO, and other styles
3

Ersoy, Soley, and Kemal Eren. "Timelike Tangent Developable Surfaces and Bonnet Surfaces." Abstract and Applied Analysis 2016 (2016): 1–7. http://dx.doi.org/10.1155/2016/6837543.

Full text
Abstract:
A criterion was given for a timelike surface to be a Bonnet surface in 3-dimensional Minkowski space by Chen and Li, 1999. In this study, we obtain a necessary and sufficient condition for a timelike tangent developable surface to be a timelike Bonnet surface by the aid of this criterion. This is examined under the condition of the curvature and torsion of the base curve of the timelike developable surface being nonconstant. Moreover, we investigate the nontrivial isometry preserving the mean curvature for a timelike flat helicoidal surface by considering the curvature and torsion of the base
APA, Harvard, Vancouver, ISO, and other styles
4

Mert, Tugba, and Baki Karlıga. "Constant angle spacelike surface in de Sitter space S₁³." Boletim da Sociedade Paranaense de Matemática 35, no. 3 (2017): 79–93. http://dx.doi.org/10.5269/bspm.v35i3.24398.

Full text
Abstract:
In this paper; using the angle between unit normal vector field of surfaces and a fixed spacelike axis in R₁⁴, we develop two class of spacelike surface which are called constant timelike angle surfaces with timelike and spacelike axis in de Sitter space S₁³.
APA, Harvard, Vancouver, ISO, and other styles
5

Bektaş, Burcu, and Uğur Dursun. "Timelike rotational surfaces of elliptic, hyperbolic and parabolic types in Minkowski space E41 with pointwise 1-type Gauss map." Filomat 29, no. 3 (2015): 381–92. http://dx.doi.org/10.2298/fil1503381b.

Full text
Abstract:
In this work, we focus on a class of timelike rotational surfaces in Minkowski space E41 with 2-dimensional axis. There are three types of rotational surfaces with 2-dimensional axis, called rotational surfaces of elliptic, hyperbolic or parabolic type. We obtain all flat timelike rotational surface of elliptic and hyperbolic types with pointwise 1-type Gauss map of the first and second kind. We also prove that there exists no flat timelike rotational surface of parabolic type in E41 with pointwise 1-type Gauss map.
APA, Harvard, Vancouver, ISO, and other styles
6

Önder, Mehmet, and Zehra Ekinci. "On the kinematic interpretation of timelike ruled surfaces." International Journal of Geometric Methods in Modern Physics 12, no. 10 (2015): 1550127. http://dx.doi.org/10.1142/s0219887815501273.

Full text
Abstract:
Timelike ruled surfaces are studied in dual Lorentzian space [Formula: see text] by considering E. Study Mapping and Blaschke frame. A reference timelike ruled surface is considered and associated surfaces are defined. First, it is shown that the surface generated by the instantaneous screw axis (ISA) is a Mannheim offset of reference surface. Later, the kinematic interpretations between these surfaces are introduced by means of Blaschke invariants.
APA, Harvard, Vancouver, ISO, and other styles
7

Ekici, Cumali, Yasin Ünlütürk, Mustafa Dede, and B. S. Ryuh. "On Motion of Robot End-Effector Using the Curvature Theory of Timelike Ruled Surfaces with Timelike Rulings." Mathematical Problems in Engineering 2008 (2008): 1–19. http://dx.doi.org/10.1155/2008/362783.

Full text
Abstract:
The trajectory of a robot end-effector is described by a ruled surface and a spin angle about the ruling of the ruled surface. In this way, the differential properties of motion of the end-effector are obtained from the well-known curvature theory of a ruled surface. The curvature theory of a ruled surface generated by a line fixed in the end-effector referred to as the tool line is used for more accurate motion of a robot end-effector. In the present paper, we first defined tool trihedron in which tool line is contained for timelike ruled surface with timelike ruling, and transition relations
APA, Harvard, Vancouver, ISO, and other styles
8

Turhan, Essin, and Talat Körpinar. "On Characterization Canal Surfaces around Timelike Horizontal Biharmonic Curves in Lorentzian Heisenberg Group Heis3." Zeitschrift für Naturforschung A 66, no. 6-7 (2011): 441–49. http://dx.doi.org/10.1515/zna-2011-6-709.

Full text
Abstract:
In this paper, we describe a new method for constructing a canal surface surrounding a timelike horizontal biharmonic curve in the Lorentzian Heisenberg group Heis3. Firstly, we characterize timelike biharmonic curves in terms of their curvature and torsion. Also, by using timelike horizontal biharmonic curves, we give explicit parametrizations of canal surfaces in the Lorentzian Heisenberg group Heis3
APA, Harvard, Vancouver, ISO, and other styles
9

Körpinar, Talat, and Essin Turhan. "Tubular Surfaces Around Timelike Biharmonic Curves in Lorentzian Heisenberg Group Heis3." Analele Universitatii "Ovidius" Constanta - Seria Matematica 20, no. 1 (2012): 431–46. http://dx.doi.org/10.2478/v10309-012-0029-0.

Full text
Abstract:
Abstract In this paper, we describe a new method for constructing a tubular surface surrounding a timelike biharmonic curve in the Lorentzian Heisenberg group Heis3. Firstly, we characterize timelike biharmonic curves in terms of their curvature and torsion. Also, by using timelike biharmonic curves, we give explicit parametrizations of tubular surfaces in the Lorentzian Heisenberg group Heis3.
APA, Harvard, Vancouver, ISO, and other styles
10

Önder, Mehmet, and H. Hüseyin Uğurlu. "On the invariants of Mannheim offsets of timelike ruled surfaces with spacelike rulings." Asian-European Journal of Mathematics 08, no. 01 (2015): 1550009. http://dx.doi.org/10.1142/s1793557115500096.

Full text
Abstract:
In this paper, we give the characterizations for Mannheim offsets of timelike ruled surfaces with spacelike rulings in dual Lorentzian space [Formula: see text]. We obtain the relations between terms of their integral invariants and also we give new characterization for the Mannheim offsets of developable timelike ruled surface. Moreover, we find relations between the area of projections of spherical images for Mannheim offsets of timelike ruled surfaces and their integral invariants.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Timelike surface"

1

Ugail, Hassan, M. C. Marquez, and A. Yilmaz. "On Bezier surfaces in three-dimensional Minkowski space." 2011. http://hdl.handle.net/10454/6222.

Full text
Abstract:
In this paper, we study Bézier surfaces in View the MathML source three-dimensional Minkowski space. In particular, we focus on timelike and spacelike cases for Bézier surfaces. We also deal with the Plateau¿Bézier problem in View the MathML source, obtaining conditions over the control net to be extremal of the Dirichlet function for both timelike and spacelike Bézier surfaces. Moreover, we provide interesting examples showing the behavior of the Plateau¿Bézier problem in View the MathML source and illustrating the relationship between it and the corresponding Plateau¿Bézier problem in the Eu
APA, Harvard, Vancouver, ISO, and other styles
2

Hnybida, Jeffrey. "A 4d Lorentzian Spin Foam Model With Timelike Surfaces." Thesis, 2010. http://hdl.handle.net/10012/5593.

Full text
Abstract:
We construct a 4d Lorentzian spin foam model capable of describing both spacelike and timelike surfaces. To do so we use a coherent state approach inspired by the Riemannian FK model. Using the coherent state method we reproduce the results of the EPRL model for Euclidean tetrahedra and extend the model to include Lorentzian tetrahedra. The coherent states of spacelike/timelike triangles are found to correspond to elements of the discrete/continuous series of SU(1,1). It is found that the area spectrum of both spacelike and timelike surfaces is quantized. A path integral for the quantum theory
APA, Harvard, Vancouver, ISO, and other styles

Books on the topic "Timelike surface"

1

Buschmann, Rainer F. The pacific Ocean Basin to 1850. Edited by Jerry H. Bentley. Oxford University Press, 2012. http://dx.doi.org/10.1093/oxfordhb/9780199235810.013.0032.

Full text
Abstract:
The Pacific Ocean is the world's largest and deepest ocean, spanning about one-third of the earth's surface. Despite its size, the Pacific has received only scant global historical attention when compared to the Atlantic and the Indian Oceans. However, the Pacific has played a prominent role intermittently in world history, highlighted by Austronesian expansion, Manila Galleon trade, eighteenth-century European exploration, and the intense island-hopping military campaigns of World War II. At the same time, such historical interest did not translate into a familiar timeline integrating this wa
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Timelike surface"

1

Akamine, Shintaro. "Geometry of Timelike Minimal Surfaces and Null Curves." In Agriculture as a Metaphor for Creativity in All Human Endeavors. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-7811-8_5.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Clelland, J. "A Bäcklund transformation for timelike surfaces of constant mean curvature in ℝ^{1,2}." In Bäcklund and Darboux Transformations. The Geometry of Solitons. American Mathematical Society, 2001. http://dx.doi.org/10.1090/crmp/029/10.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Domínguez, Daniela G., Jacqueline Coppock, and marcela polanco. "Same-Sex Binational Families." In LGBTQ Divorce and Relationship Dissolution, edited by Abbie E. Goldberg and Adam P. Romero. Oxford University Press, 2018. http://dx.doi.org/10.1093/med-psych/9780190635176.003.0006.

Full text
Abstract:
This chapter addresses challenges that can surface for some same-sex binational couples in the United States. Vulnerable to both immigration enforcement and social institutions seeking to deny the validity of their relationship, same-sex binational couples may be at increased risk for emotional hardship, relationship instability, conflict, and dissolution. The ramifications of divorce in binational relationships may include jeopardizing the residency status or lengthening the naturalization timeline; separation from children if removed from the United States; and potential removal to a country where one or both members in the partnership may be exposed to sexual prejudice. The chapter discusses the unique challenges that increase the risk of binational same-sex relationships ending in dissolution or divorce, highlighting the limited research on LGBTQ dissolution or divorce and the need for further research on clinical and legal interventions that could enhance the well-being of same-sex binational couples during and after relationship dissolution or divorce.
APA, Harvard, Vancouver, ISO, and other styles
4

Gopinath, Sumanth, and Pwyll ap Siôn. "Introduction." In Rethinking Reich. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780190605285.003.0001.

Full text
Abstract:
This introduction starts off by situating the music of Steve Reich both in relation to popular culture (film, contemporary fiction, and popular music) and as the subject of serious musicological study. An overview of the ever-changing landscape of Reich scholarship is then provided—from formal analyses to approaches that seek to view the composer’s music through the prism of the “new musicology.” The introduction concludes by arguing that the gap between discourse and practice is sometimes extensive. Reich’s own reflections can at times obfuscate more complex realities that lie under the surface. In encompassing sketch studies, discourse analysis and reception history, hermeneutic investigations, intertextual studies, historical timelines and contexts, harmonic and formal analysis, philosophical and religious ruminations, and deep archival digging, this volume draws on a wide range of perspectives that contribute a wealth of knowledge and learning that complements Reich’s own writings.
APA, Harvard, Vancouver, ISO, and other styles
5

Valipour, Mohammad, Sayed M. Bateni, Nicolas R. Dalezios, et al. "Hydrometeorology: Review of Past, Present and Future Observation Methods." In Hydrology [Working Title]. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.94939.

Full text
Abstract:
Hydrometeorology aims at measuring and understanding the physics, chemistry, energy and water fluxes of the atmosphere, and their coupling with the earth surface environmental parameters. Accurate hydrometeorological records and observations with different timelines are crucial to assess climate evolution and weather forecast. Historical records suggest that the first hydrometeorological observations date back to ca 3500 BC. Reviewing these observations in the light of our modern knowledge of the dynamic of atmospheres is critical as it can reduce the ambiguities associated to understanding major fluctuations or evolutions in the earth climate. Today, the ambiguities in hydrometeorological observations have significantly improved due to the advances in monitoring, modeling, and forecasting of processes related to the land-atmosphere coupling and forcing. Numerical models have been developed to forecast hydrometeorological phenomena in short-, medium- and long-term horizons, ranging from hourly to annual timescales. We provide herein a synthetic review of advances in hydrometeorological observations from their infancy to today. In particular, we discuss the role of hydrometeorological records, observations, and modeling in assessing the amplitude and time-scale for climate change and global warming.
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Timelike surface"

1

Chen, Weihuan, and Haizhong Li. "On the Classification of Timelike Bonnet Surfaces." In Differential Geometry in Honor of Professor S S Chern. WORLD SCIENTIFIC, 2000. http://dx.doi.org/10.1142/9789812792051_0002.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Chang, Y. L. Betty, Mylène Mengual, Brian Parfett, T. C. Nicholas Graham, Mark Hancock, and Stacey D. Scott. "Improving awareness of automated actions using an interactive event timeline." In ITS '13: The ACM International Conference on Interactive Tabletops and Surfaces. ACM, 2013. http://dx.doi.org/10.1145/2512349.2512398.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Miller, Matthew J., Austin Claybrook, Suraj Greenlund, and Karen M. Feigh. "Operational Assessment of Apollo Lunar Surface Extravehicular Activity Timeline Execution." In AIAA SPACE 2016. American Institute of Aeronautics and Astronautics, 2016. http://dx.doi.org/10.2514/6.2016-5391.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Biehn, Capt A. M., J. R. Clarke, J. J. Juster, and T. E. Voth. "Weapon System Virtualization and Continuous Capability Delivery for US Navy Combat Systems." In Engine As A Weapon International Symposium VIII. IMarEST, 2019. http://dx.doi.org/10.24868/issn.2515-8171.2019.010.

Full text
Abstract:
The US Navy envisions a Fleet that applies advances from the technology sector to improve the delivery of warfighting capability. Due to constraints imposed by legacy hardware design inherent and the inherent limitations of x86 servers, significant inefficiencies exist in the hardware and software delivery process. The US Navy leveraged advancements in virtualization technology to field combat system software in virtual machines, effectively removing computing hardware as a capability limiter. Adoption of hardware-agnostic virtual machines also significantly reduced the delivery timeline for i
APA, Harvard, Vancouver, ISO, and other styles
5

Baumgardner, Marc E., and Daniel B. Olsen. "Poison Build-up and Performance Degradation of an Oxidation Catalyst in 2-Stroke Natural Gas Engine Exhaust." In ASME 2017 Internal Combustion Engine Division Fall Technical Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/icef2017-3550.

Full text
Abstract:
Due to current and future exhaust emissions regulations, oxidation catalysts are increasingly being added to the exhaust streams of large-bore, 2-stroke, natural gas engines. Such catalysts have been found to have a limited operational lifetime, primarily due to chemical (i.e. catalyst poisoning) and mechanical fouling resulting from the carry-over of lubrication oil from the cylinders. It is critical for users and catalyst developers to understand the nature and rate of catalyst deactivation under these circumstances. This study examines the degradation of an exhaust oxidation catalyst on a l
APA, Harvard, Vancouver, ISO, and other styles
6

De Angelis, Giuseppe, and Fernando Palomba. "The Reliability Improvement of a Conventional Cast Iron Exhaust Manifold for a Small Size Gasoline Engine." In ASME 2004 Internal Combustion Engine Division Fall Technical Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/icef2004-0876.

Full text
Abstract:
This paper describes a challenging phase of the development of a cast iron exhaust manifold for a FIAT FIRE 16v engine. On these engine family, a close-coupled catalyst directly connected to the manifold is used. Conventional cast iron could be considered an obsolete material to realize modern car engine exhaust manifolds, but it’s still considerable as a profitable technology due to relatively low processing and part costs. Moreover, due to actual exhaust emission regulation, the engine calibration determinates higher temperature values and gradients on the exhaust system than in the past. Co
APA, Harvard, Vancouver, ISO, and other styles
7

Griffin, J., D. J. Rojas, A. Al Shmakhy, and P. Scranton. "Application of Interventionless Single Point Entry Technology to Improve Proppant Placement Control and Well Production." In SPE Annual Technical Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/205865-ms.

Full text
Abstract:
Abstract The hydraulic fracture treatment (HFT) and its effectiveness to enhance wellbore drainage directly correlate with each well’s overall production performance and underlining economics. This paper will discuss the potential of ultra high stage count Single Point Entry (SPE) sleeves and their ability to increase control over proppant placement and isolation during the HFT as a method for optimizing well performance, economics, and reduce non-uniformity between treatments and wells. To address the limitations of current completion methods, full ID single point entry systems have been deve
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Timelike surface' for particular source types:
Journal articles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography