Results 21 to 30 of about 449,344 (264)

Application of tangent-arc technology for deep inspiration breath-hold radiotherapy in left-sided breast cancer

open access: yesFrontiers in Oncology, 2023
ObjectiveTo explore the advantages of dosimetry and the treatment efficiency of tangent-arc technology in deep inspiration breath-hold radiotherapy for breast cancer.MethodsForty patients with left-sided breast cancer who were treated in our hospital ...
Yucheng Li   +11 more
doaj   +1 more source

Lifts of Hypersurfaces on a Sasakian Manifold with a Quartersymmetric Semimetric Connection (QSSC) to Its Tangent Bundle

open access: yesUniversal Journal of Mathematics and Applications, 2023
The aim of the present paper is to introduce a Sasakian manifold immersed with a quartersymmetric semimetric connection to a tangent bundle. Some basic results are given on a Riemannian connection and a QSSC to the tangent bundle on a Sasakian manifold ...
Lovejoy Swapan Kumar Das   +1 more
doaj   +1 more source

Prolongations of affine connection and horizontal vectors

open access: yesДифференциальная геометрия многообразий фигур, 2020
The linear frame bundle over a smooth manifold is considered. The mapping dе defined by the differentials of the first-order frame e is a lift to the normal N, i.
K.V. Polyakova
doaj   +1 more source

Tangent Similarity Measure Based MADM-Strategy under SVPNS-Environment [PDF]

open access: yesNeutrosophic Sets and Systems, 2021
The main focus of this article is to procure a new similarity measure namely tangent similarity measure for single valued pentapartitioned neutrosophic sets (SVPNS).
Suman Das   +2 more
doaj   +1 more source

Maps generating normals on a manifold

open access: yesДифференциальная геометрия многообразий фигур, 2019
The first- and second-order canonical forms are considered on a smooth m-manifold. The approach connected with coordinate expressions of basic and fiber forms, and first- and second-order tangent vectors on a manifold is implemented.
K. Polyakova
doaj   +1 more source

Tangent Lines and Lipschitz Differentiability Spaces

open access: yesAnalysis and Geometry in Metric Spaces, 2016
We study the existence of tangent lines, i.e. subsets of the tangent space isometric to the real line, in tangent spaces of metric spaces.We first revisit the almost everywhere metric differentiability of Lipschitz continuous curves.
Cavalletti Fabio, Rajala Tapio
doaj   +1 more source

Subgeometries and linear sets on a projective line [PDF]

open access: yes, 2014
We define the splash of a subgeometry on a projective line, extending the definition of \cite{BaJa13} to general dimension and prove that a splash is always a linear set.
Lavrauw, Michel, Zanella, Corrado
core   +1 more source

Tangent Bundles Endowed with Quarter-Symmetric Non-Metric Connection (QSNMC) in a Lorentzian Para-Sasakian Manifold

open access: yesMathematics, 2023
The purpose of the present paper is to study the complete lifts of a QSNMC from an LP-Sasakian manifold to its tangent bundle. The lifts of the curvature tensor, Ricci tensor, projective Ricci tensor, and lifts of Einstein manifold endowed with QSNMC in ...
Rajesh Kumar   +3 more
doaj   +1 more source

Nonlinear Settlement Calculation of Composite Foundation Based on Tangent Modulus Method: Two Case Studies

open access: yesBuildings, 2023
The tangent modulus method of undisturbed soil is a new method in settlement calculation, which is mainly applied to hard soil with a strong structure, such as silty clay, completely weathered rock, and granite residual soil with an SPT blow count ...
Yonghua Li   +4 more
doaj   +1 more source

Derivatives of tangent function and tangent numbers

open access: yes, 2015
In the paper, by induction, the Fa\`a di Bruno formula, and some techniques in the theory of complex functions, the author finds explicit formulas for higher order derivatives of the tangent and cotangent functions as well as powers of the sine and ...
Bourbaki   +37 more
core   +1 more source

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