Results 61 to 70 of about 60,099 (181)
Measure‐valued processes for energy markets
Mathematical Finance, Volume 35, Issue 2, Page 520-566, April 2025.Abstract We introduce a framework that allows to employ (non‐negative) measure‐valued processes for energy market modeling, in particular for electricity and gas futures. Interpreting the process' spatial structure as time to maturity, we show how the Heath–Jarrow–Morton approach can be translated to this framework, thus guaranteeing arbitrage free ...
Christa Cuchiero +3 more
wiley +1 more source
Classification of Solution Operators Semigroups for Abstract Cauchy Problems
Известия Иркутского государственного университета: Серия "Математика", 2014 The paper is devoted to studying solution operators semigroups and its generators for abstract Cauchy problem in Banach space. It is considered two types of families — "classical” that defined on whole Banach space and possesses the semigroup property ...
V.S. Parfenenkova
doaj
On countably compact 0-simple topological inverse semigroups
, 2008 We describe the structure of 0-simple countably compact topological inverse semigroups and the structure of congruence-free countably compact topological inverse ...
Gutik, Oleg, Repovš, Dušan
core +1 more source
Mathematical Structures in Computer Science, 2017 A semigroup-based setting for developing Hoare logics and refinement calculi is introduced together with procedures for translating between verification and refinement proofs. A new Hoare logic for multirelations and two minimalist generic verification and refinement components, implemented in an interactive theorem prover, are presented as ...
openaire +2 more sources
A priori bounds for the generalised parabolic Anderson model
Communications on Pure and Applied Mathematics, Volume 79, Issue 5, Page 1315-1394, May 2026.Abstract We show a priori bounds for solutions to (∂t−Δ)u=σ(u)ξ$(\partial _t - \Delta) u = \sigma (u) \xi$ in finite volume in the framework of Hairer's Regularity Structures [Invent Math 198:269–504, 2014]. We assume σ∈Cb2(R)$\sigma \in C_b^2 (\mathbb {R})$ and that ξ$\xi$ is of negative Hölder regularity of order −1−κ$- 1 - \kappa$ where κ<κ¯$\kappa <
Ajay Chandra +2 more
wiley +1 more source
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
doaj +1 more source
, 2014 We generalize a result for the translation $C_0$-semigroup on $L^p(\R_+,\mu)$ about the equivalence of being chaotic and satisfying the Frequent Hypercyclicity criterion due to Mangino and Peris to certain weighted composition $C_0$-semigroups. Such $C_0$
Kalmes, Thomas
core +1 more source
In‐and‐Out: Algorithmic Diffusion for Sampling Convex Bodies
Random Structures &Algorithms, Volume 68, Issue 3, May 2026.ABSTRACT We present a new random walk for uniformly sampling high‐dimensional convex bodies. It achieves state‐of‐the‐art runtime complexity with stronger guarantees on the output than previously known, namely in Rényi divergence (which implies TV, 𝒲2, KL, χ2$$ {\chi}^2 $$).
Yunbum Kook +2 more
wiley +1 more source
Open Mathematics, 2018 In this paper, we give some characterizations of 𝓠-regular semigroups and show that the class of 𝓠-regular semigroups is closed under the direct product and homomorphic images.
Feng Xinyang
doaj +1 more source
Essential Bipolar Fuzzy Ideals in Semigroups
International Journal of Analysis and Applications, 2023 In this paper, we give the concepts of essential bipolar fuzzy ideals in semigroups. We discuss the basic properties and relationships between essential bipolar fuzzy ideals and essential ideals in semigroups Finally, we extend to 0-essential bipolar ...
Thiti Gaketem, Pannawit Khamrot
doaj +1 more source