Results 1 to 10 of about 81,509 (95)

Nonlinear analysis in p-vector spaces for single-valued 1-set contractive mappings

open access: yesFixed Point Theory and Algorithms for Sciences and Engineering, 2022
The goal of this paper is to develop some fundamental and important nonlinear analysis for single-valued mappings under the framework of p-vector spaces, in particular, for locally p-convex spaces for 0 < p ≤ 1 $0 < p \leq 1$ .
George Xianzhi Yuan
doaj   +1 more source

Fixed point theorems and applications in p-vector spaces

open access: yesFixed Point Theory and Algorithms for Sciences and Engineering, 2023
The goal of this paper is to develop new fixed points for quasi upper semicontinuous set-valued mappings and compact continuous (single-valued) mappings, and related applications for useful tools in nonlinear analysis by applying the best approximation ...
George Xianzhi Yuan
doaj   +1 more source

Local uniform convexity and Kadec‐Klee type properties in K‐interpolation spaces I: General Theory [PDF]

open access: yesJournal of Function Spaces, 2004
We present a systematic study of the interpolation of local uniform convexity and Kadec‐Klee type properties in K‐interpolation spaces. Using properties of the K‐functional of J.Peetre, our approach is based on a detailed analysis of properties of a Banach couple and properties of a K‐interpolation functional which guarantee that a given K ...
Dodds, Peter Gerard   +3 more
openaire   +3 more sources

Theorems on the zeros of linear differential operators

open access: yesИзвестия высших учебных заведений. Поволжский регион: Физико-математические науки
Background. Differential connections between solutions of systems of differential equations play a significant role in mathematics and mathematical physics. The operators and algebras of differential symmetry of linear homogeneous systems of differential
A.I. Fomin, V.I. Titarenko
doaj   +1 more source

ABB Theorems: Results and Limitations in Infinite Dimensions. [PDF]

open access: yesJ Optim Theory Appl
Daniilidis A   +2 more
europepmc   +1 more source

Equivariant valuations on convex functions. [PDF]

open access: yesCalc Var Partial Differ Equ
Hofstätter GC, Knoerr J.
europepmc   +1 more source

Hawking's Singularity Theorem for Lipschitz Lorentzian Metrics. [PDF]

open access: yesCommun Math Phys
Calisti M   +4 more
europepmc   +1 more source

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