Differential Equations
In mathematics, a differential equation is an equation that relates one or more functions and their derivatives. In applications, the functions generally represent physical quantities, the derivatives represent their rates of change, and the differential equation defines a relationship between the two. Such relations are common; therefore, differential equations play a prominent role in many disciplines including engineering, physics, economics, and biology. Mainly the study of differential equations consists of the study of their solutions (the set of functions that satisfy each equation), and of the properties of their solutions. Only the simplest differential equations are solvable by explicit formulas; …
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CESifo Network · 15 April 2024 English
Optimal Climate Policy under Exogenous and Endogenous Technical Change: Making Sense of the Different Approaches
e(−δ+nt)tuccθ (54) 39 We now have a system of four differential equations in four variables S, a, v, λS (Equations …
The Grantham Research Institute on Climate Change and the Environment · 15 April 2024 English
The Institute is funded by the Grantham Foundation for the Protection of the Environment and a number of other sources. [...] The NW quadrant is the MAC curve, expressed as …
e(−δ+nt)tuccθ (54) 38 We now have a system of four differential equations in four variables S, a, v, λS (Equations …
NBER: National Bureau of Economic Research · 11 April 2024 English
We develop a segmented markets model which rationalizes the effects of monetary policy on the term structure of interest rates. When arbitrageurs’ portfolio features positive duration, an unexpected rise in …
equilibrium in terms of a system of four partial differential equations: equilibrium in the bond market implied …
PIK: Potsdam-Institut fur Klimafolgenforschung · 11 April 2024 English
Given growing concerns about climate tipping points and their risks, it is important to investigate the capability of identifying robust precursor signals for the associated transitions. In general, the variance …
Unless otherwise mentioned, the stochas- tic differential equations below are solved with the Euler– Maruyama …
PIK: Potsdam-Institut fur Klimafolgenforschung · 11 April 2024 English
We propose to explore the sustainability of climate policies based on a novel commitment metric. This metric allows to quantify how future generations’ scope of action is affected by short-term …
those 2000 years. We integrate SURFER’s differential equations in Julia using the package DifferentialEquations …
ERC: European Research Council · 8 April 2024 English
ERC Advanced Grants 2023 List of Principal Investigators – PE domain Host institution refers to institution at time of application Host Institution local Host Last name First name Host Institution …
National de la National Center for Solving differential equations VAN DER HOEVEN Joris Recherche Scientifique …
NBER: National Bureau of Economic Research · 27 March 2024 English
We develop a model of self-fulfilling default cycles with demand externality a la Dixit- Stiglitz to explain the recurrent clustered defaults observed in the data. The literature reports that observable …
equilibrium can be precisely described by two differential equations involving only these two variables, visually … equilibrium trajectories satisfying the differential equations and the transversality conditions are infinite …
NBER: National Bureau of Economic Research · 14 March 2024 English
Network diffusion models are used to study things like disease transmission, information spread, and technology adoption. However, small amounts of mismeasurement are extremely likely in the networks constructed to operationalize …
approximation of the diffusion process by a standard differential equations SIR compartmental model. In practice, diffusion … occurs over discrete time. The compartmental differential equations model sim- plifies matters by using a mean … model and the estimated trajectory from the differential equations model. Panel (A) and (B) use q = 4, while …
PIK: Potsdam-Institut fur Klimafolgenforschung · 14 March 2024 English
Flood losses have steadily increased in the past and are expected to grow even further owing to climate and socioeconomic change. The reduction of flood vulnerability, for example, through adaptation, …
dynamics model consisting of three coupled differential equations (reformulated into four equations for readability) …
PIK: Potsdam-Institut fur Klimafolgenforschung · 8 February 2024 English
We study the dynamics of a piecewise-linear second-order delay differential equation that is representative of feedback systems with relays (switches) that actuate after a fixed delay. The system under study …
analytic results become possible. Delay differential equations have, generically, an infinite dimensional …