Results 31 to 40 of about 298,127 (271)

Naeruse lause huligaansest tõetruudusest, Jüri Üdi näitel / On Laughter, Truthfulness, and Hooliganism as Unfolded in the Writings of Jüri Üdi

open access: yesMethis: Studia Humaniora Estonica, 2013
The writings of Jüri Üdi (alter ego of Estonian poet and actor Juhan Viiding, from 1968 to 1978) display the reality of something that could be referred to as a joyful dimension of anguish.
Liisi Rünkla
doaj   +1 more source

Green’s Function In Free Axisymmetric Vibration Analysis Of Annular Thin Plates With Different Boundary Conditions

open access: yesInternational Journal of Applied Mechanics and Engineering, 2015
Free vibration analysis of homogeneous and isotropic annular thin plates by using Green’s functions is considered. The formula of the influence function for uniform thin circular and annular plates is presented in closed-form.
K.K. Żur
doaj   +1 more source

Singular Surfaces of Osculating Circles in Three-Dimensional Euclidean Space

open access: yesMathematics, 2023
In this paper, we study the surfaces of osculating circles, which are the sets of all osculating circles at all points of regular curves. Since the surfaces of osculating circles may be singular, it is necessary to investigate the singular points of ...
Kemeng Liu, Zewen Li, Donghe Pei
doaj   +1 more source

Singularity bifurcations [PDF]

open access: yesJournal of Macroeconomics, 2006
equation models represent an important class of macroeconomic systems. Our ongoing research (He and Barnett (2003)) on the Leeper and Sims (1994) Euler equations macroeconometric model is revealing the existence of singularity-induced bifurcations, when the model¡¯s parameters are within a confidence region about the parameter estimates. Although known
Yijun He, William Barnett
openaire   +2 more sources

Evolutoids and pedaloids of frontals on timelike surfaces

open access: yesOpen Mathematics, 2023
In this article, we define evolutoids and pedaloids of frontals on timelike surfaces in Minkowski 3-space. The evolutoids of frontals on timelike surfaces are not only the generalization of evolutoids of curves in the Minkowski plane but also the ...
Wang Yongqiao   +3 more
doaj   +1 more source

On the Timelike Circular Surface and Singularities in Minkowski 3-Space

open access: yesAxioms, 2023
In this paper, we have parameterized a timelike (Tlike) circular surface (CIsurface) and have obtained its geometric properties, including striction curves, singularities, Gaussian and mean curvatures.
Areej A. Almoneef, Rashad A. Abdel-Baky
doaj   +1 more source

Singular Propositions and Singular Thoughts

open access: yesNotre Dame Journal of Formal Logic, 1998
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

Relative singularity categories and singular equivalences [PDF]

open access: yesJournal of Homotopy and Related Structures, 2021
Let $R$ be a right notherian ring. We introduce the concept of relative singularity category $ _{\mathcal{X}}(R)$ of $R$ with respect to a contravariantly finite subcategory $\mathcal{X}$ of $\rm{mod}\mbox{-}R.$ Along with some finiteness conditions on $\mathcal{X}$, we prove that $ _{\mathcal{X}}(R)$ is triangle equivalent to a subcategory of the ...
openaire   +2 more sources

Asymptotic silence-breaking singularities

open access: yes, 2006
We discuss three complementary aspects of scalar curvature singularities: asymptotic causal properties, asymptotic Ricci and Weyl curvature, and asymptotic spatial properties.
Andersson L   +17 more
core   +3 more sources

Rotationally Symmetric Lacunary Functions and Products of Centered Polygonal Lacunary Functions

open access: yesFractal and Fractional, 2020
This work builds upon previous studies of centered polygonal lacunary functions by presenting proofs of theorems showing how rotational and dihedral mirror symmetry manifest in these lacunary functions at the modulus level.
L. K. Mork   +3 more
doaj   +1 more source

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