Search Results - "Wied Pakusa"
-
1
A Finite-Model-Theoretic View on Propositional Proof Complexity
Published in Logical methods in computer science (01-01-2019)“…We establish new, and surprisingly tight, connections between propositional proof complexity and finite model theory. Specifically, we show that the power of…”
Get full text
Journal Article -
2
Definability of linear equation systems over groups and rings
Published in Logical methods in computer science (14-11-2013)“…Motivated by the quest for a logic for PTIME and recent insights that the descriptive complexity of problems from linear algebra is a crucial aspect of this…”
Get full text
Journal Article -
3
A Finite-Model-Theoretic View on Propositional Proof Complexity
Published 13-06-2022“…Logical Methods in Computer Science, Volume 15, Issue 1 (June 14, 2022) lmcs:4320 We establish new, and surprisingly tight, connections between propositional…”
Get full text
Journal Article -
4
RANK LOGIC IS DEAD, LONG LIVE RANK LOGIC
Published in The Journal of symbolic logic (01-03-2019)“…Motivated by the search for a logic for polynomial time, we study rank logic (FPR) which extends fixed-point logic with counting (FPC) by operators that…”
Get full text
Journal Article -
5
Descriptive complexity of linear equation systems and applications to propositional proof complexity
Published in 2017 32nd Annual ACM/IEEE Symposium on Logic in Computer Science (LICS) (01-06-2017)“…We prove that the solvability of systems of linear equations and related linear algebraic properties are definable in a fragment of fixed-point logic with…”
Get full text
Conference Proceeding -
6
Definability of linear equation systems over groups and rings
Published 11-11-2013“…Logical Methods in Computer Science, Volume 9, Issue 4 (November 14, 2013) lmcs:725 Motivated by the quest for a logic for PTIME and recent insights that the…”
Get full text
Journal Article -
7
Model-Theoretic Properties of [omega]-Automatic Structures
Published in Theory of computing systems (01-11-2014)“…Issue Title: Theoretical Aspects of Computer Science We investigate structural properties of [omega]-automatic presentations of infinite structures in order to…”
Get full text
Journal Article -
8
Definability of summation problems for Abelian groups and semigroups
Published in 2017 32nd Annual ACM/IEEE Symposium on Logic in Computer Science (LICS) (01-06-2017)“…We study the descriptive complexity of summation problems in Abelian groups and semigroups. In general, an input to the summation problem consists of an…”
Get full text
Conference Proceeding -
9
Defining Winning Strategies in Fixed-Point Logic
Published in 2015 30th Annual ACM/IEEE Symposium on Logic in Computer Science (01-07-2015)“…We study definability questions for positional winning strategies in infinite games on graphs. The quest for efficient algorithmic constructions of winning…”
Get full text
Conference Proceeding -
10
Model-Theoretic Properties of ω-Automatic Structures
Published in Theory of computing systems (01-11-2014)“…We investigate structural properties of ω -automatic presentations of infinite structures in order to sharpen our methods to determine whether a given…”
Get full text
Journal Article -
11
Characterising Choiceless Polynomial Time with First-Order Interpretations
Published in 2015 30th Annual ACM/IEEE Symposium on Logic in Computer Science (01-07-2015)“…Choice less Polynomial Time (CPT) is one of the candidates in the quest for a logic for polynomial time. It is a strict extension of fixed-point logic with…”
Get full text
Conference Proceeding -
12
Approximations of Isomorphism and Logics with Linear-Algebraic Operators
Published 18-02-2019“…Invertible map equivalences are approximations of graph isomorphism that refine the well-known Weisfeiler-Leman method. They are parametrised by a number k and…”
Get full text
Journal Article -
13
Rank logic is dead, long live rank logic
Published 18-03-2015“…Motivated by the search for a logic for polynomial time, we study rank logic (FPR) which extends fixed-point logic with counting (FPC) by operators that…”
Get full text
Journal Article