 IDEALS Home
 →
 Browse by Subject
Browse by Subject "Mathematics"
Now showing items 178197 of 994

(1997)In (Da92) E.C. Dade announcing the first of what has to be a series of conjectures concerned with counting characters in the blocks of finite groups. Specifically, Dade's socalled Ordinary Conjecture asserts that if a ...
application/pdf
PDF (4MB) 
application/pdf
PDF (4MB) 
(1980)It is known that many decision problems are unsolvable in the class of all finitely presented groups. When the class of groups is restricted, problems previously unsolvable can become solvable. In this work we investigate ...
application/pdf
PDF (4MB) 
application/pdf
PDF (2MB) 
(2002)Given an (undecidable) elementary theory of a computabilitytheoretic structure, it is natural to ask how much of the theory is decidable. An AEsentence is a sentence in prenex normal form with all universal quantifiers ...
application/pdf
PDF (3MB) 
application/pdf
PDF (1MB) 
application/pdf
PDF (1MB) 
application/pdf
PDF (2MB) 
(1968)
application/pdf
PDF (2MB) 
application/pdf
PDF (1MB) 
application/pdf
PDF (986kB) 
(1988)In The Nature of Mathematical Knowledge (1984) Philip Kitcher develops an exciting and insightful picture of arithmetical reality by considering mathematical activitiesnot objectsas ontologically primitive. Yet, his ...
application/pdf
PDF (7MB) 
(1992)A theory T admits elimination of imaginaries (EI) if every definable equivalence relation $\sim$ is the kernel of a definable map f. (I.e., $\vec{x}\sim\vec{y}\Longleftrightarrow f(\vec{x})=f(\vec{y}).)$ This term was ...
application/pdf
PDF (5MB) 
(1999)Having explicitly calculated universal deformations, the next logical question is whether we can calculate deformations with local restrictions. In fact, the ordinary deformation problem is representable, and we explain ...
application/pdf
PDF (3MB) 
(1987)Consider the second order nonlinear differential operator ${\cal L}y$ = Ly + $\eta y\sp3$, where $\eta$ = $\pm$1 and L, the linear part of ${\cal L}$, is of the form Ly = $y\sp{\prime\prime}$ + $p(x)y\sp\prime$ + q(x)y. ...
application/pdf
PDF (2MB) 
(1977)
application/pdf
PDF (3MB) 
(2008)Our final problem is one in graph representations. We develop a lemma on traces of hypergraphs, extending results of Balogh and Bollobas. We then use this lemma, along with probabilistic methods, to show that for every ...
application/pdf
PDF (1MB) 
application/pdf
PDF (795kB) 
application/pdf
PDF (2MB) 
application/pdf
PDF (938kB)
Now showing items 178197 of 994