Variable Order Finite Elements and Positivity Preservation for Hyperbolic PDEs. Berzins, M. Applied Numerical Mathematics, 48(3-4):253–439, March, 2004.  
Paper  bibtex   @Article{SCI:Ber2004b,
  author =    "M. Berzins",
  title =     "Variable Order Finite Elements and Positivity
              Preservation for Hyperbolic PDEs",
  journal =   "Applied Numerical Mathematics",
  volume =    "48",
  number =    "3-4",
  pages =     "253--439",
  year =      "2004",
  month =     "March",
  keywords =  "forward problems inverse problems forward
              simulation inverse solutions, finite elements,
              computational pde pdes computational partial
              differential equations",
  url =       "http://www.sci.utah.edu/publications/berzins04/HPhyp.pdf",
} 
Downloads: 0
{"_id":"9CEdb7hdCdccTDPEm","bibbaseid":"berzins-variableorderfiniteelementsandpositivitypreservationforhyperbolicpdes-2004","author_short":["Berzins, M."],"bibdata":{"bibtype":"article","type":"article","author":[{"firstnames":["M."],"propositions":[],"lastnames":["Berzins"],"suffixes":[]}],"title":"Variable Order Finite Elements and Positivity Preservation for Hyperbolic PDEs","journal":"Applied Numerical Mathematics","volume":"48","number":"3-4","pages":"253–439","year":"2004","month":"March","keywords":"forward problems inverse problems forward simulation inverse solutions, finite elements, computational pde pdes computational partial differential equations","url":"http://www.sci.utah.edu/publications/berzins04/HPhyp.pdf","bibtex":"@Article{SCI:Ber2004b,\n  author =    \"M. Berzins\",\n  title =     \"Variable Order Finite Elements and Positivity\n              Preservation for Hyperbolic PDEs\",\n  journal =   \"Applied Numerical Mathematics\",\n  volume =    \"48\",\n  number =    \"3-4\",\n  pages =     \"253--439\",\n  year =      \"2004\",\n  month =     \"March\",\n  keywords =  \"forward problems inverse problems forward\n              simulation inverse solutions, finite elements,\n              computational pde pdes computational partial\n              differential equations\",\n  url =       \"http://www.sci.utah.edu/publications/berzins04/HPhyp.pdf\",\n}\n\n","author_short":["Berzins, M."],"key":"SCI:Ber2004b","id":"SCI:Ber2004b","bibbaseid":"berzins-variableorderfiniteelementsandpositivitypreservationforhyperbolicpdes-2004","role":"author","urls":{"Paper":"http://www.sci.utah.edu/publications/berzins04/HPhyp.pdf"},"keyword":["forward problems inverse problems forward simulation inverse solutions","finite elements","computational pde pdes computational partial differential equations"],"metadata":{"authorlinks":{}},"html":""},"bibtype":"article","biburl":"http://www.sci.utah.edu/publications/sci.bib","dataSources":["5G2skx26SJtreWr4m"],"keywords":["forward problems inverse problems forward simulation inverse solutions","finite elements","computational pde pdes computational partial differential equations"],"search_terms":["variable","order","finite","elements","positivity","preservation","hyperbolic","pdes","berzins"],"title":"Variable Order Finite Elements and Positivity Preservation for Hyperbolic PDEs","year":2004}