Results 51 to 60 of about 3,002,914 (353)

A generalized coincidence point index

open access: yesApplied General Topology, 2005
The authors acknowledge the support of A.N.D.R.U., (Contract No 03/06 Code CU 19905) and M.E.R.S., (Project No B*2501/04/04), Laboratory M.M.E.R.E.
N.M. Benkafadar, M.C. Benkara-Mostefa
openaire   +4 more sources

Self-motions of pentapods with linear platform [PDF]

open access: yes, 2015
We give a full classification of all pentapods with linear platform possessing a self-motion beside the trivial rotation about the platform. Recent research necessitates a contemporary and accurate re-examination of old results on this topic given by ...
Nawratil, Georg, Schicho, Josef
core   +1 more source

Weak proximal normal structure and coincidence quasi-best proximity points

open access: yesApplied General Topology, 2020
We introduce the notion of pointwise cyclic-noncyclic relatively nonexpansive pairs involving orbits. We study the best proximity point problem for this class of mappings.
Farhad Fouladi   +2 more
doaj   +1 more source

N=1 Mirror Symmetry and Open/Closed String Duality [PDF]

open access: yes, 2001
We show that the exact N=1 superpotential of a class of 4d string compactifications is computed by the closed topological string compactified to two dimensions. A relation to the open topological string is used to define a special geometry for N=1 mirror
Mayr, P.
core   +3 more sources

New conditions for the existence of equilibrium prices [PDF]

open access: yesYugoslav Journal of Operations Research, 2018
We study the existence of equilibrium price vector in a supply-demand model taking into account the transaction costs associated with the sale of products.
Arutyunov Aram V.   +2 more
doaj   +1 more source

Localized intersection of currents and the Lefschetz coincidence point theorem

open access: yes, 2015
We introduce the notion of a Thom class of a current and define the localized intersection of currents. In particular we consider the situation where we have a smooth map of manifolds and study localized intersections of the source manifold and currents ...
Bisi, Cinzia   +3 more
core   +1 more source

Geometric and homotopy theoretic methods in Nielsen coincidence theory

open access: yes, 2006
In classical fixed point and coincidence theory the notion of Nielsen numbers has proved to be extremely fruitful. Here we extend it to pairs (f_1, f_2) of maps between manifolds of arbitrary dimensions. This leads to estimates of the minimum numbers MCC(
Koschorke, Ulrich
core   +4 more sources

A new approach on the stability analysis in ELKO cosmology [PDF]

open access: yes, 2015
In this work it has been developed a new approach to study the stability of a system composed by an ELKO field interacting with dark matter, which could give some contribution in order to alleviate the cosmic coincidence problem.
Jesus, J. F.   +2 more
core   +2 more sources

Topological Transversality Coincidence Theory for Multivalued Maps with Selections in a Given Class

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2021
This paper presents the topological transversality coincidence theorem for general multivalued maps who have selections in a given class of maps.
O’Regan Donal
doaj   +1 more source

Coincidence of magnetic and valence quantum critical points in CeRhIn5 under pressure

open access: yes, 2017
We present accurate electrical resistivity measurements along the two principle crystallographic axes of the pressure-induced heavy-fermion superconductor CeRhIn5 up to 5.63 GPa.
Aoki, D.   +5 more
core   +1 more source

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