Results 51 to 60 of about 108,334 (223)
DLP in semigroups: Algorithms and lower bounds
Journal of Mathematical Cryptology, 2022 The discrete logarithm problem (DLP) in semigroups has attracted some interests and serves as the foundation of many cryptographic schemes. In this work, we study algorithms and lower bounds for DLP in semigroups.
Han Jiao, Zhuang Jincheng
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The lq-controller synthesis problem for infinite-dimensional systems in factor form [PDF]
Opuscula Mathematica, 2013 The general lq-problem with infinite time horizon for well-posed infinite-dimensional systems has been investigated by George Weiss and Martin Weiss and by Olof Staffans with a complement by Kalle Mikkola and Olof Staffans.
Piotr Grabowski
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Varieties of \u3cem\u3eP\u3c/em\u3e-Restriction Semigroups [PDF]
, 2014 The restriction semigroups, in both their one-sided and two-sided versions, have arisen in various fashions, meriting study for their own sake. From one historical perspective, as “weakly E-ample” semigroups, the definition revolves around a “designated ...
Jones, Peter R.
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Maximal Commutative Subalgebras Invariant for CP-Maps: (Counter-)Examples
, 2008 We solve, mainly by counterexamples, many natural questions regarding maximal commutative subalgebras invariant under CP-maps or semigroups of CP-maps on a von Neumann algebra.
B. V. RAJARAMA BHAT +7 more
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Tensor products and regularity properties of Cuntz semigroups [PDF]
, 2014 The Cuntz semigroup of a C*-algebra is an important invariant in the structure and classification theory of C*-algebras. It captures more information than K-theory but is often more delicate to handle.
Ramon Antoine, F. Perera, Hannes Thiel
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Holomorphicc-semigroups and holomorphic semigroups
Semigroup Forum, 1989 This paper is concerned with holomorphic C-semigroups. The main purpose is to give a characterization of the C-complete infinitesimal generator of a holomorphic C-semigroup, which coincides with that of a holomorphic \((C_ 0)\)-semigroup in the case of \(C=I\). We also clarify the relationship between holomorphic C-semigroups and holomorphic semigroups
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Proceedings of the American Mathematical Society, 1983 Let S S be a semigroup of matrices over a field such that a power of each element lies in a subgroup (i.e., each element has a Drazin inverse within the semigroup). The main theorem of this paper is that there exist ideals I 0 , … ,
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The Canadian Journal of Chemical Engineering, EarlyView.Abstract We develop a delay‐aware estimation and control framework for a non‐isothermal axial dispersion tubular reactor modelled as a coupled parabolic‐hyperbolic PDE system with recycle‐induced state delay. The infinite‐dimensional dynamics are preserved without spatial discretization by representing the delay as a transport PDE and adopting a late ...
Behrad Moadeli, Stevan Dubljevic
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AIMS MathematicsThis paper explores the well-posedness of the Cauchy problem for the Fokker-Planck equation associated with the partial differential operator $ L $ with low regularity condition.
Haesung Lee
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Proceedings of the Edinburgh Mathematical Society, 1979 A monoid in which every principal right ideal is projective is called a right PP monoid. Special classes of such monoids have been investigated in (2), (3), (4) and (8). There is a well-known internal characterisation of right PP monoids using the relation ℒ* which is defined as follows.
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