Results 41 to 50 of about 416 (63)

Orbit spaces of free involutions on the product of two projective spaces

, 2010
Let $X$ be a finitistic space having the mod 2 cohomology algebra of the product of two projective spaces. We study free involutions on $X$ and determine the possible mod 2 cohomology algebra of orbit space of any free involution, using the Leray ...
A. Borel, C. Allday, C.N. Chang, C.T. Yang, G.E. Bredon, G.R. Livesay, G.X. Ritter, G.X. Ritter, J. McCleary, J.H. Rubinstein, Mahender Singh, P.E. Conner, P.M. Rice, R. Myers, R.G. Swan, R.M. Dotzel, S. Deo, S. Deo, Y. Tao   +18 more
core   +1 more source

The multi-valued domination of metric spaces

, 2012
In this article, we introduce the notion of multi-valued domination of metric spaces, which is a generalization of domination in the sense of Borsuk and which encompasses previous generalizations.AMS classification: 32A12; 47H10; 55M20; 54C55; 54C15.
M. Ślosarski
semanticscholar   +1 more source

Equivariant Nielsen invariants for discrete groups

, 2006
For discrete groups G, we introduce equivariant Nielsen invariants. They are equivariant analogs of the Nielsen number and give lower bounds for the number of fixed point orbits in the G-homotopy class of an equivariant endomorphism f:X->X.
Weber, Julia
core   +2 more sources

COMMON FIXED POINT THEOREMS FOR A \'{C}IRI\'{C}-REICH-RUS PAIR OF MAPPINGS IN METRIC SPACES WITH A DIRECTED GRAPH

, 2014
Let (X, d) be a complete metric space with a directed graph G. Inspired by the work of Bojor, we introduce a new contractive type condition between a pair of mappings S, T : X → X with respect to G. In particular, if S = T , we obtain the result of Bojor.
Narongsuk Boonsri, S. Chotchaisthit, S. Saejung   +2 more
semanticscholar   +1 more source

Localized intersection of currents and the Lefschetz coincidence point theorem

, 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, Bracci, Filippo, Izawa, Takeshi, Suwa, Tatsuo   +3 more
core   +1 more source

Obstruction theory for coincidences of multiple maps

, 2017
Let $f_1,..., f_k:X\to N$ be maps from a complex $X$ to a compact manifold $N$, $k\ge 2$. In previous works \cite{BLM,MS}, a Lefschetz type theorem was established so that the non-vanishing of a Lefschetz type coincidence class $L(f_1,...,f_k)$ implies ...
Monis, Thais, Wong, Peter
core   +2 more sources

A Discrete Multivariate Mean Value Theorem with Applications [PDF]

AMS classifications: 47H10; 54H25; 55M20; 90C33; 91B50Discrete set;mean value theorem;fixed point;algorithm;equilibrium ...
Talman, A.J.J., Yang, Z.F.
core   +1 more source

A formula for the coincidence Reidemeister trace of selfmaps on bouquets of circles [PDF]

, 2007
We give a formula for the coincidence Reidemeister trace of selfmaps on bouquets of circles in terms of the Fox calculus. Our formula reduces the problem of computing the coincidence Reidemeister trace to the problem of distinguishing doubly twisted ...
Staecker, P. Christopher
core   +4 more sources

The group fixed by a family of endomorphisms of a surface group

, 2014
For a closed surface $S$ with $\chi(S)
Wu, Jianchun, Zhang, Qiang
core   +1 more source

Fixed point theory of cyclical generalized contractive conditions in partial metric spaces

, 2013
The purpose of this paper is to study fixed point theorems for a mapping satisfying the cyclical generalized contractive conditions in complete partial metric spaces.
Chi-Ming Chen
semanticscholar   +1 more source