Results 31 to 40 of about 11,196 (309)
Nonexistence of CW(154,36) and CW(170,64)
, 2011 We develop a new method for proving the nonexistence of a certain class of circulant weighing matrices. Using this method, we prove the nonexistence of two open cases, namely CW(154,36) and CW(170,64)
Ali Nabavi +3 more
core +1 more source
, 2020 Contingent negative existentials give rise to a notorious paradox. I formulate a version in terms of metaphysical grounding: nonexistence can't be fundamental, but nothing can ground it.
Muñoz, Daniel
core +1 more source
Advances in Nonlinear Analysis, 2023 In this article, under some weaker assumptions on a>0a\gt 0 and ff, the authors aim to study the existence of nontrivial radial solutions and nonexistence of nontrivial solutions for the following Schrödinger-Poisson system with zero mass potential −Δu ...
Wang Xiaoping, Chen Fulai, Liao Fangfang
doaj +1 more source
A nonexistence result for Moore 𝐺-spectra
, 1991 In this paper we show that certain equivariant Moore spectra do not exist. Specifically, we give an example of a Bredon coefficient system for which there is no corresponding equivariant Moore CW-spectrum that is bounded below.
S. R. Costenoble, S. Waner
core +1 more source
Agribusiness, EarlyView.Abstract Nucleus outgrower schemes are contractual arrangements where well‐resourced large‐scale farmers (nucleus farmers) are empowered by development support agencies to take charge of smallholder farmers, by providing them with market access and the necessary training on agronomic practices and farm inputs for production.
Dominic Tasila Konja, Awudu Abdulai
wiley +1 more source
Nonlinear Analysis, 2018 We investigate the existence and nonexistence of positive solutions for a system of nonlinear Riemann–Liouville fractional differential equations with parameters and p-Laplacian operator subject to multi-point boundary conditions, which contain ...
Rodica Luca
doaj +1 more source
Does Participating in Agricultural Global Value Chains Promote Agricultural Growth?
Agribusiness, EarlyView.ABSTRACT This study examines the relationship between GVC participation and agricultural value‐added growth in 43 countries over the period 1995–2022. In contrast to prior literature, we disaggregate the agricultural sector into four sub‐sectors namely crop cultivation, animal production, forestry and fishing.
Taner Turan +2 more
wiley +1 more source
Electronic Journal of Qualitative Theory of Differential Equations, 2015 We obtain results on nonexistence of nontrivial nonnegative solutions for some elliptic and parabolic inequalities with functional parameters involving the $p(x)$-Laplacian operator. The proof is based on the test function method.
Evgeny Galakhov +2 more
doaj +1 more source
Fractional Laplacian: Pohozaev identity and nonexistence results [PDF]
, 2012 In this Note we present the Pohozaev identity for the fractional Laplacian. As a consequence of this identity, we prove the nonexistence of nontrivial bounded solutions to semilinear problems with supercritical nonlinearities in star-shaped domains.Peer ...
Ros-Oton, Xavier +6 more
core +1 more source
Nonexistence of D(4)-quintuples [PDF]
Journal of Number Theory, 2019 In this paper we prove a conjecture that $D(4)$-quintuple does not exist using both classical and new methods. Also, we give a new version of the Rickert's theorem that can be applied on some $D(4)$-quadruples.
Marija Bliznac Trebješanin +1 more
openaire +5 more sources