Christopher J. Ash

Publication Activity (10 Years)

Years Active: 1975-1997
Publications (10 Years): 0

Publications

Christopher J. Ash, Julia F. Knight, Jeffrey B. Remmel
Quasi-Simple Relations in Copies of a Given Recursive Structure. Ann. Pure Appl. Log. 86 (3) (1997)
Christopher J. Ash, Julia F. Knight
Possible Degrees in Recursive Copies II. Ann. Pure Appl. Log. 87 (2) (1997)
Christopher J. Ash, Peter Cholak, Julia F. Knight
Permitting, Forcing, and Copying of a Given Recursive Relation. Ann. Pure Appl. Log. 86 (3) (1997)
Christopher J. Ash, Julia F. Knight
Recursive Structures and Ershov's Hierarchy. Math. Log. Q. 42 (1996)
Christopher J. Ash, Julia F. Knight
Possible Degrees in Recursive Copies. Ann. Pure Appl. Log. 75 (3) (1995)
Christopher J. Ash, Julia F. Knight
Mixed Systems. J. Symb. Log. 59 (4) (1994)
Christopher J. Ash, Julia F. Knight
A Completeness Theorem for Certain Classes of Recursive Infinitary Formulas. Math. Log. Q. 40 (1994)
Christopher J. Ash
A Conjecture Concerning the Spectrum of a Sentence. Math. Log. Q. 40 (1994)
Christopher J. Ash, Julia F. Knight
Ramified Systems. Ann. Pure Appl. Log. 70 (3) (1994)
Christopher J. Ash
On Countable Fractions from an Elementary Class. J. Symb. Log. 59 (4) (1994)
Christopher J. Ash
Generalizations of Enumeration Reducibility Using Recursive Infinitary Propositional Sentences. Ann. Pure Appl. Log. 58 (3) (1992)
Christopher J. Ash
A Construction for Recursive Linear Orderings. J. Symb. Log. 56 (2) (1991)
Christopher J. Ash
Inevitable Graphs: a Proof of the Type II Conjecture and some Related Decision Procedures. Int. J. Algebra Comput. 1 (1) (1991)
Christopher J. Ash, Julia F. Knight
Pairs of Recursive Structures. Ann. Pure Appl. Log. 46 (3) (1990)
Christopher J. Ash, T. E. Hall, Jean-Eric Pin
On the Varieties of Languages Associated with Some Varieties of Finite Monoids with Commuting Idempotents Inf. Comput. 86 (1) (1990)
Christopher J. Ash
Labelling Systems and r.e. Structures. Ann. Pure Appl. Log. 47 (2) (1990)
Christopher J. Ash, Julia F. Knight, Mark S. Manasse, Theodore A. Slaman
Generic Copies of Countable Structures. Ann. Pure Appl. Log. 42 (3) (1989)
Christopher J. Ash
Categoricity in hyperarithmetical degrees. Ann. Pure Appl. Log. 34 (1) (1987)
Christopher J. Ash, John W. Rosenthal
Intersections of algebraically closed fields. Ann. Pure Appl. Log. 30 (2) (1986)
Christopher J. Ash
Stability of recursive structures in arithmetical degrees. Ann. Pure Appl. Log. 32 (1986)
Christopher J. Ash, Rodney G. Downey
Decidable Subspaces and Recursively Enumerable Subspaces. J. Symb. Log. 49 (4) (1984)
Christopher J. Ash, John W. Rosenthal
Some Theories Associated with Algebraically Closed Fields. J. Symb. Log. 45 (2) (1980)
Christopher J. Ash
Sentences with finite models. Math. Log. Q. 21 (1) (1975)