Results 171 to 180 of about 3,856,070 (304)

Algebraic and Spectral Analysis of a Novel Hermitian Spin Basis

open access: yes
This work aims to explore the algebraic and spectral properties of a novel parametric Hermitian non-Pauli spin basis. The primary motivation for this work is to introduce an alternative to the Pauli spin basis for investigating systems where conventional
Zeeshan Yousaf   +2 more
core   +1 more source

Graded Differential Polynomial Rings

open access: yesMathematische Nachrichten, EarlyView.
ABSTRACT We study differential polynomial rings R[t;δ]$R[t;\delta]$ over Γ$\Gamma$‐graded rings, where Γ$\Gamma$ is an arbitrary group. We show that R[t;δ]$R[t;\delta]$ admits a Γ$\Gamma$‐grading compatible with that of R$R$ if and only if δ$\delta$ is a γ$\gamma$‐derivation for some γ∈CΓ(ΓR)$\gamma \in C_\Gamma (\Gamma _R)$, and that this grading is ...
Yassine Ait Mohamed
wiley   +1 more source

Matrix Product Operator Algebras I: Representations of Weak Hopf Algebras and Projected Entangled Pair States. [PDF]

open access: yesCommun Math Phys
Molnar A   +5 more
europepmc   +1 more source

Algebraic geometry proceedings of Bilkent Summer School

open access: yes, 1997
This timely resource - based on the Summer School on Algebraic Geometry held recently at Bilkent University, Ankara, Turkey - surveys and applies fundamental ideas and techniques in the theory of curves, surfaces, and threefolds to a wide variety of ...
Algebraic Geometry Summer School 1995 Ankara   +1 more
core  

How Much to Sell and When: Optimal Staged Divestiture of Patent‐Linked Royalty Claims Under Risk, Illiquidity, and Finite Horizon

open access: yesManagerial and Decision Economics, EarlyView.
ABSTRACT Patent owners can sell a royalty interest in stages rather than all at once. This paper asks how much to sell now when claim values are uncertain, buyers are costly to reach, and patent expiry limits the time available. A decision model produces sale schedules that adjust to current value, the share retained, and time remaining.
Andreas Peters
wiley   +1 more source

Decoding the Gut‐Brain Axis: Multi‐Omics Reveals a Causal Chain Linking Human Genome, Gut Microbiota, Blood Metabolites, and Alertness in the Brain

open access: yesMed Research, EarlyView.
This multi‐omics study identified genetic loci, gut microbiota, blood metabolites, and gray matter volumes of orbitofrontal cortex and cerebellum that were potentially relevant to alerting in healthy Chinese adults. Subsequent two‐step one‐sample Mendelian randomization further revealed a serial mediation pathway: Bacteroides intestinalis influences ...
Hongru Li   +8 more
wiley   +1 more source

Extending the hyper‐logistic model to the random setting: New theoretical results with real‐world applications

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
We develop a full randomization of the classical hyper‐logistic growth model by obtaining closed‐form expressions for relevant quantities of interest, such as the first probability density function of its solution, the time until a given fixed population is reached, and the population at the inflection point.
Juan Carlos Cortés   +2 more
wiley   +1 more source

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