Results 21 to 30 of about 735,723 (244)

RULED SURFACES AND TANGENT BUNDLE OF PSEUDO-SPHERE OF NATURAL LIFT CURVES

open access: yesJournal of Science and Arts, 2020
In this article, firstly, the isomorphism between the subset of the tangent bundle of Lorentzian unit sphere, TM, and Lorentzian unit sphere, S12 is represented. Secondly, the isomorphism between the subset of hyperbolic unit sphere, TM, and hyperbolic unit sphere, H2 is given. According to E.
Mustafa, Mustafa, Karaca, Emel
openaire   +3 more sources

Pseudo-Smarandache Functions of First and Second Kind [PDF]

open access: yes, 2011
In this paper we define two kinds of pseudo-Smarandache functions. We have investigated more than fifty terms of each pseudo-Smarandache function.
S.T.Rathod   +3 more
core   +1 more source

Second Hopf map and Yang-Coulomb system on 5d (pseudo)sphere [PDF]

open access: yesJournal of Physics A: Mathematical and Theoretical, 2009
10 pages, PACS: 03.65.-w, 02.30.Ik, 14.80 ...
Bellucci, Stefano   +2 more
openaire   +4 more sources

Jaccard Distance of Logical Formulas and Its Application

open access: yesJisuanji kexue yu tansuo, 2020
Quantifying the related concepts of propositional logic is a new method of propositional logic research. It is differe.nt from the syntax and semantics method and is a powerful tool for studying the structure of propositional sets.
YU Peng
doaj   +1 more source

On the near pseudo Smarandache function [PDF]

open access: yes, 2010
The main purpose of this paper is using the elementary method to study the calculating problem of an infinite series involving the near pseudo Smarandache function K(n), and give an exact calculating ...
Yongfeng, Zhang
core   +1 more source

Some characterizations of timelike rectifying curves in de sitter 3 space

open access: yesCumhuriyet Science Journal, 2020
De Sitter space is a non-flat Lorentzian space form with positive constant curvature which plays an important role in the theory of relativity. In this paper, we define the notions of timelike rectifying curve and timelike conical surface in De Sitter 3 ...
Mahmut Mak
doaj   +1 more source

INTERSECTIONS OF RULED SURFACES CORRESPONDING TO CURVES ON PSEUDO SPHERES IN DUAL SPACE

open access: yesJournal of Science and Arts, 2023
In this article, firstly, the intersection of two ruled surfaces corresponding to two different curves on S_1^2 is investigated. The conditions for the intersection of these ruled surfaces in R_1^3 are expressed by theorems with bivariate functions. Then, the intersection of two ruled surfaces corresponding to two different curves on H^2 is examined ...
Oztemir, Yunus, ÇALIŞKAN, MUSTAFA
openaire   +2 more sources

Enhanced Adsorption of Zn(II) onto Graphene Oxides Investigated Using Batch and Modeling Techniques

open access: yesNanomaterials, 2018
Graphene oxide (GO) was synthesized and employed as an adsorbent for Zn(II) removal from an aqueous solution. The adsorption isotherms showed that Zn(II) adsorption can be better described using the Freundlich model than the Langmuir model.
Min Pan   +4 more
doaj   +1 more source

Extensions of the mandala of Legendrian dualities for pseudo-spheres in Lorentz–Minkowski space

open access: yesTopology and its Applications, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Izumiya, Shyuichi, Yildirim, Handan
openaire   +6 more sources

Evaluating Communication in the British Parliamentary Public Sphere [PDF]

open access: yes, 2009
This article begins with a re-evaluation of political communication research based on Habermas' original theory of the public sphere. It presents Habermas' alternative framework for assessing communication in contemporary ‘actually existing democracies’.
Aeron Davis (10034714), Davis, Aeron
core   +1 more source

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