Results 81 to 90 of about 1,776 (211)

Design of experiments‐driven optimization of Porphyridium marinum cultivation: impact of operational variables on phycoerythrin and exopolysaccharide production

open access: yesBiofuels, Bioproducts and Biorefining, Volume 20, Issue 3, Page 1506-1522, May/June 2026.
Abstract Among the Porphyridium genus, Porphyridium marinum exhibits the highest phycoerythrin (PE) content. In this study, the metabolic trade‐off between biomass, PE, and sulfated exopolysaccharide (EPS) production was assessed under varying nitrogen and sulfur availability, light intensity, residence time, and cultivation mode.
Rosaria Tizzani   +3 more
wiley   +1 more source

Upper Semicontinuous Extensions of Binary Relations. [PDF]

open access: yes
Suzumura shows that a binary relation has a weak order extension if and only if it is consistent. However, consistency is demonstrably not sufficient to extend an upper semi-continuous binary relation to an upper semicontinuous weak order. Jaffray proves
BOSSERT, Walter   +2 more
core  

Maximal elements of quasi upper semicontinuous preorders on compact spaces [PDF]

open access: yes, 2017
We introduce the concept of quasi upper semicontinuity of a not necessarily total preorder on a topological space and we prove that there exists a maximal element for a preorder on a compact topological space provided that it is quasi upper ...
BOSI, GIANNI, Zuanon Magalì, Ernestine
core   +3 more sources

Caratheodory perturbation of a second-order differential inclusion with constraints

open access: yesElectronic Journal of Differential Equations, 2005
We prove the existence of local solutions for the second-order viability problem $$ ddot{x}(t) in f(t,x(t),dot{x}(t))+F(x(t),dot{x}(t)),quad x(t)in K. $$ Here $K$ is a closed subset of $mathbb{R}^{n}$, $F$ is an upper semicontinuous multifunction with ...
Saida Amine   +2 more
doaj  

Simple incentives and diverse beliefs

open access: yesTheoretical Economics, Volume 21, Issue 2, Page 500-534, May 2026.
This paper studies a moral hazard problem in which the principal does not know the agent's beliefs about the output generating process. The agent is risk neutral, transfers are subject to limited liability, and the principal evaluates contracts according to their worst‐case payoff against a rich set of plausible agent beliefs.
Maxwell Rosenthal
wiley   +1 more source

Optimal control and semicontinuous viscosity solutions [PDF]

open access: yes, 1991
We study the value function for an optimal control problem with upper semicontinuous terminal data. We prove that the upper semicontinuous envelope of the value function is the unique semicontinuous viscosity solution of the Bellman equation and that it ...
E. N. Barron, R. Jensen
core   +1 more source

Existence and uniqueness of anti-periodic solutions for nonlinear third-order differential inclusions

open access: yesElectronic Journal of Differential Equations, 2013
In this article, we study the existence of anti-periodic solutions for the third-order differential inclusion $$displaylines{ u'''(t)in partialvarphi(u'(t))+F(t,u(t))quad hbox{a.e.
Touma Haddad, Tahar Haddad
doaj  

Functionals, functors and ultrametric spaces

open access: yesPracì Mìžnarodnogo Geometričnogo Centru, 2014
We consider different classes of functionals defined on the set of continuous functions on ultrametric spaces. Similarly as in the case of probability measures, idempotent measures, max-min measures and upper semicontinuous capacities we endow the sets ...
Лидия Базилевич   +2 more
doaj   +1 more source

Upper Semicontinuous Representability of Maximal Elements for Nontransitive Preferences [PDF]

open access: yes, 2019
We characterize the possibility of determining all the maximal elements for a preorder on a topological space by maximizing all the functions in a suitable family of upper semicontinuous order-preserving functions. We discuss the possibility of extending
Gianni Bosi, Magalì Zuanon
core   +1 more source

Differentiating random upper semicontinuous functions under the integral sign [PDF]

open access: yes
De Blasi differential, random upper semicontinuous function, π-differential, s-differential, 60D05, 52A22, 60B99,
Miguel López-Díaz   +2 more
core   +1 more source

Home - About - Disclaimer - Privacy