Results 41 to 50 of about 932 (84)

Conformal field theory of Painlev\'e VI [PDF]

open access: yes, 2012
Generic Painlev\'e VI tau function \tau(t) can be interpreted as four-point correlator of primary fields of arbitrary dimensions in 2D CFT with c=1. Using AGT combinatorial representation of conformal blocks and determining the corresponding structure ...
Gamayun, O., Iorgov, N., Lisovyy, O.
core   +4 more sources

Sharp Best Proximity Point Results for Multivalued Operators in Extended Rectangular b‐Metric Spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2026, Issue 1, 2026.
In this paper, we propose a novel extension of generalized distance, which we call the θ‐extended rectangular b‐generalized pseudo‐distance. This new concept generalizes and unifies several known notions of distance by incorporating a parameter θ, along with the framework of rectangular b‐metric spaces and pseudo‐distances.
Cholatis Suanoom   +2 more
wiley   +1 more source

A New Fixed‐Point Framework for Nonexpansive and Averaged Mappings in Normed GE‐Algebras

open access: yesJournal of Mathematics, Volume 2026, Issue 1, 2026.
In this paper, we develop a systematic framework for studying fixed‐point theory in the setting of normed GE‐algebras. Building on the GE‐norm, we introduce and analyze nonexpansive mappings, α‐averaged mappings, and enriched contractions with respect to the quasimetric induced by the GE‐norm.
Prashant Patel   +3 more
wiley   +1 more source

Analysis of a Radiotherapy Model for Brain Tumors

open access: yesStudies in Applied Mathematics, Volume 155, Issue 1, July 2025.
ABSTRACT In this work, we focus on the analytical and numerical study of a mathematical model for brain tumors undergoing radiotherapy treatment. Under certain assumptions regarding the given data in the model, we prove the existence and uniqueness of a weak nonnegative (biologically relevant) solution.
Marina Chugunova   +3 more
wiley   +1 more source

The physics and the mixed Hodge structure of Feynman integrals [PDF]

open access: yes, 2014
This expository text is an invitation to the relation between quantum field theory Feynman integrals and periods. We first describe the relation between the Feynman parametrization of loop amplitudes and world-line methods, by explaining that the first ...
Vanhove, Pierre
core   +1 more source

Fixed Point Theorems for Set-Valued Mappings on TVS-Cone Metric Spaces

open access: yes, 2015
In the context of tvs-cone metric spaces, we prove a Bishop-Phelps and a Caristi's type theorem. These results allow us to prove a fixed point theorem for $(\delta, L)$-weak contraction according to a pseudo Hausdorff metric defined by means of a cone ...
Fierro, Raúl
core   +1 more source

ExaWind: Open‐source CFD for hybrid‐RANS/LES geometry‐resolved wind turbine simulations in atmospheric flows

open access: yesWind Energy, Volume 27, Issue 3, Page 225-257, March 2024.
Abstract Predictive high‐fidelity modeling of wind turbines with computational fluid dynamics, wherein turbine geometry is resolved in an atmospheric boundary layer, is important to understanding complex flow accounting for design strategies and operational phenomena such as blade erosion, pitch‐control, stall/vortex‐induced vibrations, and aftermarket
Ashesh Sharma   +13 more
wiley   +1 more source

Jacobian elliptic Kummer surfaces and special function identities

open access: yes, 2016
We derive formulas for the construction of all inequivalent Jacobian elliptic fibrations on the Kummer surface of two non-isogeneous elliptic curves from extremal rational elliptic surfaces by rational base transformations and quadratic twists.
Griffin, Elise, Malmendier, Andreas
core   +1 more source

Study of Nonlinear Second‐Order Differential Inclusion Driven by a Φ−Laplacian Operator Using the Lower and Upper Solutions Method

open access: yesJournal of Mathematics, Volume 2024, Issue 1, 2024.
In this paper, we study a second‐order differential inclusion under boundary conditions governed by maximal monotone multivalued operators. These boundary conditions incorporate the classical Dirichlet, Neumann, and Sturm–Liouville problems. Our method of study combines the method of lower and upper solutions, the analysis of multivalued functions, and
Droh Arsène Béhi   +3 more
wiley   +1 more source

The Theory of Reich's Fixed Point Theorem for Multivalued Operators

open access: yesFixed Point Theory and Applications, 2010
The purpose of this paper is to present a theory of Reich's fixed point theorem for multivalued operators in terms of fixed points, strict fixed points, multivalued weakly Picard operators, multivalued Picard operators, data dependence of the fixed ...
Moţ Ghiocel   +3 more
doaj  

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