Results 31 to 40 of about 290,329 (292)
Maximal Product of Graphs under Vague Environment
Mathematical and Computational Applications, 2020 Graph models are found everywhere in natural and human made structures, including process dynamics in physical, biological and social systems. The product of graphs are appropriately used in several combinatorial applications and in the formation of ...
Behnaz Sheikh Hoseini +4 more
doaj +1 more source
Regular Homomorphisms and Regular Maps
European Journal of Combinatorics, 2002 The authors study regular automorphisms of oriented maps. Their main concern is the problem of lifting and projecting map automorphisms. Regular homomorphisms of oriented maps essentially arise from a factorization by a subgroup of automorphisms. In this paper, this kind of map automorphisms is studied in detail.
Malnič, Aleksander +2 more
openaire +1 more source
On the sub–diffusion fractional initial value problem with time variable order
Advances in Nonlinear Analysis, 2021 We consider a fractional derivative with order varying in time. Then, we derive for it a Leibniz' inequality and an integration by parts formula. We also study an initial value problem with our time variable order fractional derivative and present a ...
Cuesta Eduardo +3 more
doaj +1 more source
Regular Operator Equations: Conditions for Regularity [PDF]
Proceedings of the American Mathematical Society, 1982 Regular operator equations are causal equations admitting unique solutions and have the property that all of their limiting equations along solutions admit unique solutions. Sufficient conditions which guarantee that an operator equation x = T x x = Tx is regular are given in case T T is
openaire +2 more sources
Algebraic renormalisation of regularity structures [PDF]
Inventiones Mathematicae, 2016 We give a systematic description of a canonical renormalisation procedure of stochastic PDEs containing nonlinearities involving generalised functions. This theory is based on the construction of a new class of regularity structures which comes with an ...
Y. Bruned, Martin Hairer, L. Zambotti
semanticscholar +1 more source
On the Duality of Regular and Local Functions
Mathematics, 2017 In this paper, we relate Poisson’s summation formula to Heisenberg’s uncertainty principle. They both express Fourier dualities within the space of tempered distributions and these dualities are also inverse of each other.
Jens V. Fischer
doaj +1 more source
A new characterization of fuzzy ideals of semigroups and its applications
Automatika, 2021 In this paper, we develop a new technique for constructing fuzzy ideals of a semigroup. By using generalized Green's relations, fuzzy star ideals are constructed.
Chunhua Li, Baogen Xu, Huawei Huang
doaj +1 more source
Regularity for multi-phase variational problems [PDF]
Journal of Differential Equations, 2018 We prove $C^{1,\nu}$ regularity for local minimizers of the \oh{multi-phase} energy: \begin{flalign*} w \mapsto \int_{\Omega}\snr{Dw}^{p}+a(x)\snr{Dw}^{q}+b(x)\snr{Dw}^{s} \ dx, \end{flalign*} under sharp assumptions relating the couples $(p,q)$ and $(p ...
Cristiana De Filippis, Jehan Oh
semanticscholar +1 more source
Scientific Reports, 2017 Highly regular laser-induced periodic surface structures (HR-LIPSS) have been fabricated on surfaces of Mo, steel alloy and Ti at a record processing speed on large areas and with a record regularity in the obtained sub-wavelength structures.
I. Gnilitskyi +5 more
semanticscholar +1 more source
Remote SensingGold is a vital strategic resource for many countries. The Laozhaiwan area is an important gold resource base in Yunnan Province and even nationwide.
Qi Chen +11 more
doaj +1 more source