Results 101 to 110 of about 2,248 (233)

Functional differential equations of the cauchy-kowalevsky type

Aequationes Mathematicae, 1985
Hintergrund dieser Untersuchungen sind z.B. partielle Differentialgleichungssysteme \[ u_ t(t,z)=c(t,z,u(t-h_ 1,z)...)+\sum^{n}_{i=1}B_ i(t,z,u(t-h^ i_ 1,z\quad),...)u_{z_ i}(t-h'\!_ i,z) \] mit Verschiebungen in t. Anfangswerte werden daher nicht nur längs \(t=0\), \(z\in \Omega c{\mathbb{C}}^ n\), sondern in \(G_ 0:=[-r,0]\times \Omega\) (r\(\geq 0)\)
openaire   +2 more sources

On the Strong Approximation of Jump-Diffusion Processes [PDF]

In financial modelling, filtering and other areas the underlying dynamics are often specified via stochastic differential equations (SDEs) of jump-diffusion type.
Eckhard Platen, Nicola Bruti-Liberati
core  

A Parallelized 3D Geomechanical Solver for Fluid‐Induced Fault Slip in Poroelastic Media

International Journal for Numerical and Analytical Methods in Geomechanics, Volume 50, Issue 5, Page 2570-2586, 10 April 2026.
ABSTRACT We present a fully implicit formulation of coupled fluid flow and geomechanics for fluid injection/withdrawal in fractured reservoirs in the context of CO2$\textrm {CO}_2$ storage. Utilizing a Galerkin finite‐element approach, both flow and poroelasticity equations are discretized on a shared three‐dimensional mesh.
Emil Rinatovich Gallyamov, Guillaume Anciaux, Nicolas Richart, Jean‐François Molinari, Brice Lecampion   +4 more
wiley   +1 more source

Nonlinear Inequality, Fixed Point and NashEquilibrium [PDF]

In this paper, we give new sufficient conditions for the existence of a solution of theg-maximum equality. As a consequence, we prove a new fixed point theorem.
Moussa Larbani, Rabia Nessah, Tarik Tazdaït   +2 more
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Függvényegyenletek és egyenlőtlenségek = Functional equations and inequalities [PDF]

, 2011
A kutatás fő vizsgálatai függvényegyenletek és függvényegyenlőtlenségek általános elméleti kérdéseire, illetve ezek különféle matematikai, információelméleti, valószínűségszámítási, közgazdasági alkalmazásaira irányultak.
Bessenyei, Mihály, Boros, Zoltán, Burai, Pál József, Daróczy, Zoltán, Fazekas, Borbála, Gilányi, Attila, Gődényné Hajdu, Gabriella, Házy, Attila, Kaiser, Zoltán, Kocsis, Imre, Lajkó, Károly, Lakatos, Piroska, Losonczi, László, Lovas, Rezső László, Maksa, Gyula, Molnár, Lajos, Mészáros, Fruzsina, Orosz, Ágota, Páles, Zsolt, Szilasi, József, Székelyhidi, László   +20 more
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Non‐vanishing of Poincaré series on average

Mathematika, Volume 72, Issue 2, April 2026.
Abstract We study when Poincaré series for congruence subgroups do not vanish identically. We show that almost all Poincaré series with suitable parameters do not vanish when either the weight k$k$ or the index m$m$ varies in a dyadic interval. Crucially, analyzing the problem ‘on average’ over these weights or indices allows us to prove non‐vanishing ...
Ned Carmichael, Noam Kimmel
wiley   +1 more source

Cauchy's functional equation on semigroups [PDF]

Fundamenta Mathematicae, 1980
Paganoni, Luigi, Paganoni Marzegalli, Stefania   +1 more
openaire   +1 more source

Decay of weak turbulence [PDF]

Weak turbulence fields generated by single and multiple stage grids covering Reynolds numbers between 7 and 70 showing decay of energy ...
Huang, T. T., Ling, S. C.
core   +1 more source

Duality for Evolutionary Equations With Applications to Null Controllability

Mathematical Methods in the Applied Sciences, Volume 49, Issue 5, Page 4144-4166, 30 March 2026.
ABSTRACT We study evolutionary equations in exponentially weighted L2$$ {\mathrm{L}}^2 $$‐spaces as introduced by Picard in 2009. First, for a given evolutionary equation, we explicitly describe the ν$$ \nu $$‐adjoint system, which turns out to describe a system backwards in time. We prove well‐posedness for the ν$$ \nu $$‐adjoint system. We then apply
Andreas Buchinger, Christian Seifert
wiley   +1 more source

Extreme values of derivatives of the Riemann zeta function. [PDF]

Mathematika, 2022
Yang D.
europepmc   +1 more source