Results 11 to 20 of about 892,099 (270)

Essentially Triangular Algebras [PDF]

open access: yesProceedings of the American Mathematical Society, 1986
If N \mathcal {N} is a nest, then the set of all bounded linear operators T T such that T P − P T P TP - PTP is compact for all P P in N \mathcal {N} is the essentially triangular algebra associated
Erdos, J. A., Hopenwasser, A.
openaire   +2 more sources

HESITANT Triangular Neutrosophic Numbers and Their Applications to MADM [PDF]

open access: yesNeutrosophic Sets and Systems, 2020
Hesitant neutrosophic sets can accomodate more uncertainty compare to hesitant fuzzy sets and hesitant intuitionistic sets. On the other hand, triangular neutrosophic numbers are often used by the decision makers to evaluate their opinion in multi ...
Abhijit Saha , Irfan Deli, Said Broumi
doaj   +1 more source

Optimal Surplus-Dependent Reinsurance under Regime-Switching in a Brownian Risk Model

open access: yesRisks, 2021
In this paper, we consider a company that wishes to determine the optimal reinsurance strategy minimising the total expected discounted amount of capital injections needed to prevent the ruin. The company’s surplus process is assumed to follow a Brownian
Julia Eisenberg   +2 more
doaj   +1 more source

Performance Assessment of a Triangular Integrated Collector Using Neural Networks

open access: yesPolytechnic Journal, 2020
A numerical study is achieved on a new shape of temperature saver solar collector using an artificial neural network. The storage collector is a triangle face and a right triangle pyramid for the volumetric shape.
Raid W. Daoud   +2 more
doaj   +1 more source

MODELING OF HEAT EXCHANGE AT TURBULENT FLOW IN FLAT CHANNELS WITH SYMMETRIC TURBULIZERS ON BOTH PARTIES

open access: yesВестник Дагестанского государственного технического университета: Технические науки, 2019
Objectives. Mathematical modeling of heat transfer in flat channels with turbulators symmetrically located on both its sides, depending on the cross section of the turbulators.Methods.
I. E. Lobanov
doaj   +1 more source

A case of temporal triangular alopecia

open access: yesTurkderm Turkish Archives of Dermatology and Venereology, 2020
Temporal triangular alopecia (TTA) is a non-cicatricial alopecia characterized by an alopecic patch, usually located in the frontotemporal region, unilateral or bilateral, with an oval or narrow triangular base and no terminal hairs on it.
Emre Zekey, Gülcan Saylam Kurtipek
doaj   +1 more source

Depth and Stanley depth of the edge ideals of multi triangular snake and multi triangular ouroboros snake graphs

open access: yesAIMS Mathematics, 2022
In this paper, we study depth and Stanley depth of the quotient rings of the edge ideals associated to triangular and multi triangular snake and triangular and multi triangular ouroboros snake graphs.
Malik Muhammad Suleman Shahid   +3 more
doaj   +1 more source

Triangular hyperbolic buildings [PDF]

open access: yes, 2005
We construct triangular hyperbolic polyhedra whose links are generalized 4-gons. The universal cover of those polyhedra are hyperbolic buildings, which appartments are hyperbolic planes tesselated by regular triangles with angles $\pi/4$.
Kangaslampi, Riikka, Vdovina, Alina
core   +3 more sources

Congenital triangular alopecia

open access: yesInternational Journal of Trichology, 2015
Congenital triangular alopecia (CTA) also known as temporal triangular alopecia is a benign noncicatricial pattern of hair loss. It typically affects the frontotemporal region and rarely involves the temporoparietal or occipital scalp. It is a nonprogressive disorder that presents as a triangular, oval or lancet-shaped patch of alopecia.
Yin Li, Vincent Chum   +1 more
openaire   +3 more sources

Meshfree Approach for the Torsional Analysis of Orthotropic and FGM Thin-Walled Open Sections [PDF]

open access: yesMechanics of Advanced Composite Structures
The torsional study of different engineering sections made up of orthotropic and functionally graded material is presented in this paper. Prandtl’s stress function approach is used for the formulation of governing differential equations.
Ram Bilas Prasad   +2 more
doaj   +1 more source

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