Results 171 to 180 of about 57,523 (239)

Relative-Entropy Variational Principle for Semiclassical Gravity with Finite-Resolution Boundaries. [PDF]

Entropy (Basel)
Nusbaumer O.
europepmc   +1 more source

Iniciação Científica à Álgebra e Álgebra Linear [PDF]

, 1994
Brasil, Claudenir Freire Rodrigues
core  

Generating Helical Polymorphic Beams Using Dielectric Metasurfaces

Laser &Photonics Reviews, EarlyView.
Helix‐shaped polymorphic beams are optical fields whose intensity maxima spiral around the propagation axis, enabling particle manipulation through attractive or repulsive forces. Traditionally requiring expensive spatial light modulators, metasurfaces now provide a compact, cost‐effective alternative. This work demonstrates general helical polymorphic
Maryam Setareh, Yang Xu, Jose A. Rodrigo, Kenneth B. Crozier   +3 more
wiley   +1 more source

Generalizando a formula de Báskara para equações quadráticas com coeficientes matriciais [PDF]

, 2009
Almeida, Arionaldo Crispim de; Rocha, Valnice Sá de Brito
core  

Good Real Perturbations of Simple Corank One Map Germs From R3$\mathbb {R}^3$ to R3$\mathbb {R}^3$

Mathematische Nachrichten, EarlyView.
ABSTRACT The existence of good real perturbations of map germs is one of the most interesting open questions in singularity theory. In this paper, we investigate this question for all simple corank one map germs from R3$\mathbb {R}^3$ to R3$\mathbb {R}^3$, we give a complete description of those that admit a good real perturbation.
A. J. Miranda, M. J. Saia, T. O. Souza
wiley   +1 more source

Robustness of Topological Phases on Aperiodic Lattices. [PDF]

Math Phys Anal Geom
Li Y.
europepmc   +1 more source

Solução das equações polinomiais de 3º e 4º grau [PDF]

, 2011
Costa, Cristiane
core  

Introducción al álgebra lineal con aplicaciones. Métodos matriciales y aplicaciones

En álgebra lineal, una matriz es una estructura rectangular de números, símbolos o expresiones, dispuestos de forma organizada y equiespaciada entre sí, como filas y columnas. Estos artefactos fueron inicialmente empleados para representar sistemas de
Rocha Castellanos, Dairo
core  

A Test Function Method for Weakly Coupled Systems With Derivative‐Type Nonlinearity

Mathematische Nachrichten, EarlyView.
ABSTRACT We consider a two by two system of inequalities which include fractional powers of the Laplace operator, coupled through a semilinear term of derivative type. We prove the nonexistence of global‐in‐time weak solutions for powers below the critical curve and possibly on the critical curve.
Marcello D'Abbicco, Antonio Lagioia
wiley   +1 more source

Autovalores e autovetores e aplicações [PDF]

, 2011
Colares, Gilderléia Bezerra
core