Results 161 to 170 of about 69,338 (279)
Time-reversal invariance and irreversibility in time-asymmetric quantum mechanics [PDF]
, 2005 The aim of this paper is to analyze the concepts of time-reversal invariance and irreversibility in the so-called 'time-asymmetric quantum mechanics'. We begin with pointing out the difference between these two concepts.
Castagnino, Mario +5 more
core
New approach to streaming semigroups with multiplying boundary conditions
Electronic Journal of Differential Equations, 2008 This paper concerns the generation of a C_0-semigroup by the streaming operator with general multiplying boundary conditions. A first approach, presented in [2], is based on the Hille-Yosida's Theorem.
Mohamed Boulanouar
doaj
On the approximate controllability of fractional evolution equations with compact analytic semigroup
Journal of Computational and Applied Mathematics, 2014 N. Mahmudov, Sonuç Zorlu
semanticscholar +1 more source
Several locality semigroups, path semigroups and partial semigroups
, 2018 Locality semigroups were proposed recently as one of the basic locality algebraic structures, which are studied in mathematics and physics. Path semigroups and partial semigroups were also developed by many authors in the literature. In this paper, we study free objects in the category of refined locality semigroups. It turns out that the path locality
openaire +3 more sources
Semigroup Methods for Evolution Equations on Networks
, 2014 Delio Mugnolo
semanticscholar +1 more source
Tetrahedral chains and a curious semigroup
Extracta Mathematicae, 2019 In 1957 Steinhaus asked for a proof that a chain of identical regular tetrahedra joined face to face cannot be closed. Świerczkowski gave a proof in 1959.
Ian Stewart
doaj
The semigroup of semigroup extensions
Semigroup Forum, 1971 Stepp, J.W., Fulp, R.O.
openaire +2 more sources
Weighted pseudo-almost periodic solutions for some neutral partial functional differential equations
Electronic Journal of Differential Equations, 2012 In this article we study the existence of weighted pseudo almost periodic solutions of an autonomous neutral functional differential equation with Stepanov-Weighted pseudo almost periodic terms in a Banach space.
Mondher Damak +2 more
doaj
Semigroup-theoretic analysis of supply-chain disruptions and resilience. [PDF]
PLoS OneOpue JA, Sampson MI, Tom OJ, Okorie UE.
europepmc +1 more source
On the topological entropy of a semigroup of continuous maps
, 2015 Yupan Wang, Dongkui Ma
semanticscholar +1 more source