Results 11 to 20 of about 266 (53)
The semaphore codes attached to a Turing machine via resets and their various limits [PDF]
We introduce semaphore codes associated to a Turing machine via resets. Semaphore codes provide an approximation theory for resets. In this paper we generalize the set-up of our previous paper "Random walks on semaphore codes and delay de Bruijn ...
Rhodes, John +2 more
core +3 more sources
Background– Pseudomonas aeruginosa (PA) may cause suppurative otitis externa with severe inflammation and ulceration in dogs. Multidrug resistance is commonly reported for this organism, creating a difficult therapeutic challenge. Objective– The aim of this study was to evaluate the in vitro antimicrobial activity of a gel containing 0.5 µg/mL of ...
Giovanni Ghibaudo +6 more
wiley +1 more source
On the extensions of infinite‐dimensional representations of Lie semigroups
The necessary and sufficient conditions have been obtained for extendability of a Banach representation of a generating Lie semigroup S to a local representation of the Lie group G generated by S when the tangent wedge of S is a Lie semialgebra. The most convenient conditions we obtain correspond to the case of unitary representations. In this case, we
Adolf R. Mirotin
wiley +1 more source
Reachability problems for products of matrices in semirings [PDF]
We consider the following matrix reachability problem: given $r$ square matrices with entries in a semiring, is there a product of these matrices which attains a prescribed matrix? We define similarly the vector (resp.
Baccelli F. +11 more
core +5 more sources
On completely 0‐simple semigroups
Let S be a completely 0‐simple semigroup and F be an algebraically closed field. Then for each 0‐minimal right ideal M of S, M = B ∪ C ∪ {0}, where B is a right group and C is a zero semigroup. Also, a matrix representation for S other than Rees matrix is found for the condition that the semigroup ring R(F, S) is semisimple Artinian.
Yue-Chan Phoebe Ho
wiley +1 more source
Free monoids are coherent [PDF]
A monoid S is said to be right coherent if every finitely generated subact of every finitely presented right S-act is finitely presented. Left coherency is defined dually and S is coherent if it is both right and left coherent.
Gould, Victoria +2 more
core +2 more sources
Isomorphisms of semigroups of transformations
If M is a centered operand over a semigroup S, the suboperands of M containing zero are characterized in terms of S‐homomorphisms of M. Some properties of centered operands over a semigroup with zero are studied. A Δ‐centralizer C of a set M and the semigroup S(C, Δ) of transformations of M over C are introduced, where Δ is a subset of M. When Δ = M, M
A. Sita Rama Murti
wiley +1 more source
An investigation on hyper S-posets over ordered semihypergroups
In this paper, we define and study the hyper S-posets over an ordered semihypergroup in detail. We introduce the hyper version of a pseudoorder in a hyper S-poset, and give some related properties.
Tang Jian, Davvaz Bijan, Xie Xiang-Yun
doaj +1 more source
Combinatorial Markov chains on linear extensions [PDF]
We consider generalizations of Schuetzenberger's promotion operator on the set L of linear extensions of a finite poset of size n. This gives rise to a strongly connected graph on L.
A. Björner +33 more
core +2 more sources
On categorical aspects of S -quantales
S-quantales are characterized as injective objects in the category of S-posets with respect to certain class of homomorphisms that are order-preserving mappings. This paper is devoted to exhibitions of categorical structures on S-quantales.
Zhang Xia, Zhou Yunyan
doaj +1 more source

