#### Filter Results:

- Full text PDF available (3)

#### Publication Year

1962

2008

- This year (0)
- Last five years (0)

#### Publication Type

#### Co-author

#### Publication Venue

Learn More

- K. C. Chang, — N. Ghoussoub
- 2007

We investigate, in a variational setting, the relationship between the Gro-moll–Meyer pairs of a dynamically isolated critical set and the Conley index pairs of its isolating invariant neighbourhoods. We show that the information given by the critical groups of such a set is equivalent to that given by the Conley index. This allows us to derive—in a… (More)

- K. C. CHANG, TAN ZHANG
- 2008

We generalize the Perron–Frobenius Theorem for nonnegative matrices to the class of nonnegative tensors. 1. Introduction The Perron–Frobenius Theorem is a fundamental result for nonnegative matrices. It has numerous applications, not only in many branches of mathematics, such as Markov chains, graph theory, game theory, and numerical analysis, but in… (More)

Morse theory is an important part of critical point theory. A fashionable version of Morse theory, which implies Morse inequalities as consequences, describes a Morse function on an oriented compact differentiable manifold without boundary by a cohomology complex or a chain complex {C k , ∂}. In J. Mil-nor [Mi], C k = Zx, where x is a critical point with… (More)

- K C Chang, A Heller, B Schwartz, S Menezes, B Miller
- Science
- 1977

The semiconductor liquid junction cell n-GaAs/0.8M K(2)Se-0.1M K(2)Se(2)-1M KOH/C has been shown to attain 9 percent photovoltaic power conversion efficiency in sunlight. Accelerated tests under 3100 degrees K light sources of several solar intensities indicate very low photocorrosion currents and high output stability.

- K C Chang
- Science
- 1968

- K C CHANG
- Science
- 1962

- K C Chang
- Science
- 1977

- ‹
- 1
- ›