Showing items with similar title or keywords.

• Spectral element method and controllability approach for time-harmonic wave propagation 

  Mönkölä, Sanna (University of Jyväskylä, 2008)

• An optimal local active noise control method based on stochastic finite element models 

  Airaksinen, Tuomas; Toivanen, Jari (Elsevier, 2013)

  A new method is presented to obtain a local active noise control that is optimal in stochastic environment. The method uses numerical acoustical modeling that is performed in the frequency domain by using a sequence of ...

• On different finite element methods for approximating the gradient of the solution to the helmholtz equation 

  Haslinger, Jaroslav; Neittaanmäki, Pekka (North-Holland, 1984)

  We consider the numerical solution of the Helmholtz equation by different finite element methods. In particular, we are interested in finding an efficient method for approximating the gradient of the solution. We first ...

• Local control of sound in stochastic domains based on finite element models 

  Airaksinen, Tuomas; Heikkola, Erkki; Toivanen, Jari (World Scientific Publishing, 2011)

  A numerical method for optimizing the local control of sound in a stochastic domain is developed. A three-dimensional enclosed acoustic space, for example, a cabin with acoustic actuators in given locations is modeled ...

• Dimension Bounds in Monotonicity Methods for the Helmholtz Equation 

  Harrach, Bastian; Pohjola, Valter; Salo, Mikko (Society for Industrial and Applied Mathematics, 2019)

  The article [B. Harrach, V. Pohjola, and M. Salo, Anal. PDE] established a monotonicity inequality for the Helmholtz equation and presented applications to shape detection and local uniqueness in inverse boundary problems. ...