Re: Eigenvalue enclosures Dear Prof. Moore,

The following two papers might have answers to your questions:

1.    Modares, Mehdi and Mullen, Robert L., 2004. " Free Vibration of Structures with Interval Uncertainty ". 9th ASCE Specialty Conference on Probabilistic Mechanics and Structural Reliability, New Mexico, July 26-28, 2004.

2.    Modares, M., Mullen, R., Bellini, P., and Muhanna, R., "Buckling Analysis of Structures with Interval Parameters," the 2005 SAE World Congress, Reliability and Robust Design in Automotive Engineering, Detroit, Michigan, April 11-14, 2005.

Best regards,



Rafi Muhanna

----- Original Message ----- 

  From: Ray Moore 
  To: reliable computing 
  Sent: Wednesday, August 17, 2005 8:30 AM
  Subject: Eigenvalue enclosures


  Dear Colleagues,

  I have been asked the following question, and do not know of such a program. Is there one? Is it available?

  "Do you know about any program which can make inclusion  of the eigenvalues for a positive definite matrix say with 1000 or  more unknowns for example of the finite element type? If so do you have some experience with that?"

  best regards,

  Ray Moore


