Results 31 to 40 of about 175,766 (297)

An extension of the Thomson principle [PDF]

open access: yesProceedings of the American Mathematical Society, 1971
The classical Thomson principle, giving lower bounds for the Dirichlet integral, is extended, with modification, to a wider class of test functions. This makes it possible to obtain simpler and better lower bounds.
openaire   +2 more sources

On intuitionistic fuzzy version of Zadeh’s extension principle

open access: yes, 2021
In this paper, by using ?-and ?-cuts approach and the intuitionistic fuzzy Zadeh’s extension principle, we have proved a result which reveals that the ?-and ?-cuts of an intuitionistic fuzzy number obtained by the intuitionistic fuzzy Zadeh’s extension ...
Mert, Raziye, Bayeğ, Selami
core   +1 more source

Square principles in ℙmax extensions [PDF]

open access: yesIsrael Journal of Mathematics, 2017
By forcing with $\mathbb{P}_{\rm max}$ over strong models of determinacy, we obtain models where different square principles at $ω_2$ and $ω_3$ fail. In particular, we obtain a model of $2^{\aleph_0}=2^{\aleph_1}=\aleph_2 + \lnot\square(ω_2) + \lnot\square(ω_3)$.
Caicedo, Andrés Eduardo   +5 more
openaire   +4 more sources

Compactness and guessing principles in the Radin extensions

open access: yesJournal of Mathematical Logic, 2022
We investigate the interaction between compactness principles and guessing principles in the Radin forcing extensions. In particular, we show that in any Radin forcing extension with respect to a measure sequence on [Formula: see text], if [Formula: see text] is weakly compact, then [Formula: see text] holds.
Omer Ben-Neria, Jing Zhang
openaire   +2 more sources

Abnormality in the Theory of Necessary Optimality Conditions

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2017
The problems of existence, non-uniqueness, abnormality of solutions arising from the using of necessary optimality conditions are discussed in terms of the extension principle and sufficient optimality conditions. Simple examples are used.
V.I. Gurman, M.M. Khrustalev
doaj   +1 more source

Construction of Periodic Wavelet Frames Generated by the Walsh Polynomials

open access: yesMathematics, 2015
An explicit method for the construction of a tight wavelet frame generated by the Walsh polynomials with the help of extension principles was presented by Shah (Shah, 2013).
Sunita Goyal, Firdous A. Shah
doaj   +1 more source

Exploring an extention of Dick’s “intelligence principle” [PDF]

open access: yesS&F_scienzaefilosofia.it, 2023
Exploring an extension to Dick's "intelligence principle" Revisiting Dick’s “Intelligence Principle” in the light of recent technological developments, I present an argument for why one might consider a slight extension to the Principle and I explore ...
Webb, Stephen
doaj  

The Independence of Markov's Principle in Type Theory [PDF]

open access: yesLogical Methods in Computer Science, 2017
In this paper, we show that Markov's principle is not derivable in dependent type theory with natural numbers and one universe. One way to prove this would be to remark that Markov's principle does not hold in a sheaf model of type theory over Cantor ...
Thierry Coquand, Bassel Mannaa
doaj   +1 more source

Considering the Epistemic Uncertainties of the Variogram Model in Locating Additional Exploratory Drillholes [PDF]

open access: yesInternational Journal of Mining and Geo-Engineering, 2015
To enhance the certainty of the grade block model, it is necessary to increase the number of exploratory drillholes and collect more data from the deposit.
Saeed Soltani, Abbas Soltani
doaj  

The Hasse norm principle for A-extensions [PDF]

open access: yesJournal of Number Theory, 2020
We prove that, for every $n \geq 5$, the Hasse norm principle holds for a degree $n$ extension $K/k$ of number fields with normal closure $F$ such that $\operatorname{Gal}(F/k) \cong A_n$. We also show the validity of weak approximation for the associated norm one tori.
openaire   +2 more sources

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