Results 41 to 50 of about 6,990,145 (303)

A strong maximum principle for parabolic systems in a convex set with arbitrary boundary [PDF]

open access: yes, 2009
In this paper we prove a strong maximum principle for certain parabolic systems ot equations. In particular, our methods place no restriction on the regularity of the boundary of the convex set in which the system takes its values, and therefore our ...
L. Evans
semanticscholar   +1 more source

Known Results and Open Problems in Hypercomplex Convexity

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2014
A subject, which is treated in this review, combines in one bundle some questions of convex, hypercomplex analysis, probability theory and geometry.
Zelinskii Yuri
doaj   +1 more source

The External Estimate of the Compact Set by Lebesgue Set of the Convex Function [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Математика. Механика. Информатика, 2020
The finite-dimensional problem of embedding a given compact D ⊂ R p into the lower Lebesgue set G(α) = {y ∈ R p : f(y) 6 α} of the convex function f(·) with the smallest value of α due to the offset of D is considered.
Abramova, Veronika V.   +2 more
doaj   +1 more source

The stochastic reflection problem on an infinite dimensional convex set and BV functions in a Gelfand triple [PDF]

open access: yes, 2010
In this paper, we introduce a definition of BV functions in a Gelfand triple which is an extension of the definition of BV functions in [Atti Accad. Naz. Lincei Cl. Sci. Fis. Mat. Natur. Rend. Lincei (9) Mat. Appl.
M. Rockner, Rongchan Zhu, Xiangchan Zhu
semanticscholar   +1 more source

Infrared laser sampling of low volumes combined with shotgun lipidomics reveals lipid markers in palatine tonsil carcinoma

open access: yesMolecular Oncology, EarlyView.
Nanosecond infrared laser (NIRL) low‐volume sampling combined with shotgun lipidomics uncovers distinct lipidome alterations in oropharyngeal squamous cell carcinoma (OPSCC) of the palatine tonsil. Several lipid species consistently differentiate tumor from healthy tissue, highlighting their potential as diagnostic markers.
Leonard Kerkhoff   +11 more
wiley   +1 more source

Domain associated with zinc fingers‐containing NF90‐NF45 complex inhibits m6A modification of primary microRNA by suppressing METTL3/14 activity

open access: yesFEBS Open Bio, EarlyView.
NF90–NF45 functions as a negative regulator of methyltransferase‐like 3/14 (METTL3/14)‐mediated N6‐methyladenosine (m6A) modification on primary microRNAs (pri‐miRNAs). NF90–NF45 binds to anti‐oncogenic pri‐miRNAs and inhibits their m6A modification, thereby suppressing the biogenesis of anti‐oncogenic miRNAs.
Takuma Higuchi   +6 more
wiley   +1 more source

R-convexity in R-vector spaces

open access: yesJournal of Inequalities and Applications, 2022
In this paper, for every relation R on a vector space V, we consider the R-vector space ( V , R ) $(V,R)$ and define the notions of R-convexity, R-convex hull, and R-extreme point in this space.
Ali Ebrahimi Meymand, Azadeh Alijani
doaj   +1 more source

Meningovascular Inflammation in Cerebral Amyloid Angiopathy‐Related Cortical Superficial Siderosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT The role of inflammation in cortical superficial siderosis (cSS), a marker of cerebral amyloid angiopathy (CAA) linked to high hemorrhage risk, is unclear. We examined 15 patients with cSS using 3 T post‐contrast vessel wall MRI (VWI) and CSF analysis.
Philipp Arndt   +8 more
wiley   +1 more source

Developmental and Epileptic Encephalopathy due to Biallelic Pathogenic Variants in PIGM

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective PIGM encodes a critical enzyme in the glycosylphosphatidylinositol (GPI)‐anchor biosynthesis pathway. While promoter‐region mutations in PIGM have been associated with a relatively mild phenotype characterized by portal vein thrombosis and absence seizures, recent evidence suggests that coding‐region mutations result in a more severe
Júlia Sala‐Coromina   +11 more
wiley   +1 more source

Some problems about geometric lattice

open access: yesMATEC Web of Conferences, 2018
In this paper, the survey about some results of the convex lattice set are given and the invariance of projection problem of convex lattice set is also obtained.
si Lin
doaj   +1 more source

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