A proof is given for the theorem that at least one bound state exists in a one-dimensional attractive potential however weak it may be. The proof is constructive in that it provides a method to explicitly solve the eigenvalue problem for the eigenvalues as well as the eigenfunctions. The method is well suited to precise numerical calculations.

Ansel Adams, Robert Adams, Carlos Almaraz, Robert Arneson, John Baldessari, Lewis Baltz, Robert Bechtle, Jeff Brouws, Laurie Brown, Angela Buenning, Darlene Campbell, Mark Campbell, Gary Carlos, Fandra Chang, Stephane Couturier, Robert Dawson, Joe Deal, Richard Diebenkorn, John Divola, Beth Yarnelle Edwards, Kota Ezawa, William A. Garnett, Jeff Gillette, Joe Goode, Todd Hido, David Hockney, Salomon Huerta, Robert Isaacs, Thomas Lawson, Jean Lowe, Alex MacLean, Richard Meisinger, Jr., Richard Misrach, Rick Monzon, Barrie Mottishaw, Martin Mull, Deborah Oropallo, Bill Owens, Rondal (...) Partridge, John Register, Ed Ruscha, Peter Saul, Mary Snowden, Joel Sternfeld, Larry Sultan, Rudy Vanderlans, Camilo Jose Vergara, Henry Wessel, Amir Zaki. (shrink)