Results 11 to 20 of about 3,959,068 (21)

Inhomogeneous Fixed Point Ensembles Revisited

, 2010
The density of states of disordered systems in the Wigner-Dyson classes approaches some finite non-zero value at the mobility edge, whereas the density of states in systems of the chiral and Bogolubov-de Gennes classes shows a divergent or vanishing ...
Dorokhov O. N., Franz J. Wegner, Gurarie V.   +2 more
core   +1 more source

Handel's fixed point theorem revisited

, 2012
Michael Handel proved in [7] the existence of a fixed point for an orientation preserving homeomorphism of the open unit disk that can be extended to the closed disk, provided that it has points whose orbits form an oriented cycle of links at infinity ...
Brown, Brown, Fathi, JULIANA XAVIER, Le Roux   +4 more
core   +2 more sources

The multiplicativity of fixed point invariants

, 2013
We prove two general factorization theorems for fixed-point invariants of fibrations: one for the Lefschetz number and one for the Reidemeister trace. These theorems imply the familiar multiplicativity results for the Lefschetz and Nielsen numbers of a ...
Citterio, Dold, Jiang, Kate Ponto, Lewis, May, Michael Shulman, Ponto, Ponto, Shulman, You   +10 more
core   +1 more source

Fixed Point Actions for Lattice Fermions

, 1993
The fixed point actions for Wilson and staggered lattice fermions are determined by iterating renormalization group transformations. In both cases a line of fixed points is found. Some points have very local fixed point actions.
Bell, Bodwin, Bodwin, Campostrini, Drell, Drell, Kalkreuter, Karsten, Karsten, Nielsen, Pelissetto, Rebbi, U.-J. Wiese, W. Bietenholz, Wiese   +14 more
core   +1 more source

Direct limits and fixed point sets

, 2004
For which groups G is it true that whenever we form a direct limit of G-sets, dirlim_{i\in I} X_i, the set of its fixed points, (dirlim_I X_i)^G, can be obtained as the direct limit dirlim_I(X_i^G) of the fixed point sets of the given G-sets?
Bergman, George M.
core   +3 more sources

The Strong Coupling Fixed-Point Revisited

, 2004
In recent work we have shown that the Fermi liquid aspects of the strong coupling fixed point of the s-d and Anderson models can brought out more clearly by interpreting the fixed point as a renormalized Anderson model, characterized by a renormalized ...
Anderson P. W., Andrei N., Bogoliubov N. N., Costi T. A., Friedel J., Hewson A. C., Hewson A. C., Hewson A. C., Krishnamurthy H. R., Newns D. M., Nozières P., Oguri A., Sakai O., Tsvelick A. M., Wilson K. G., Yamada K.   +15 more
core   +1 more source

Homological selections and fixed-point theorems

, 2016
A homological selection theorem for C-spaces, as well as, a finite-dimensional homological selection theorem is established. We apply the finite-dimensional homological selection theorem to obtain fixed-point theorems for usco homologically UV^n set ...
Valov, Vesko
core   +1 more source

Further Evidence for a Gravitational Fixed Point

, 2005
A theory of gravity with a generic action functional and minimally coupled to N matter fields has a nontrivial fixed point in the leading large N approximation.
I. L. Buchbinder, Roberto Percacci, S. Weinberg   +2 more
core   +3 more sources

The Mermin fixed point

, 2002
The most efficient known method for solving certain computational problems is to construct an iterated map whose fixed points are by design the problem's solution.
Elser, Veit
core  

Intuitionistic fixed point theories over Heyting arithmetic [PDF]

, 2010
In this paper we show that an intuitionistic theory for fixed points is conservative over the Heyting arithmetic with respect to a certain class of formulas. This extends partly the result of mine.
Arai, Toshiyasu
core