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keeping simple

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Category: theory

Linked lists

May 2, 2018 vy state maps

What’s a linked list?  Let V be a set of values and A be a set of “addresses”. Say a map f is a “linked

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informal methods applied to networks and timeouts

January 16, 2018 vy academics, state maps, systems

Distributed computation involves many interesting issues concerning shared data. Here I want to sketch out what networks look like using applied (informal) mathematics so we

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Sorting and groups

July 22, 2017 vy state maps

I can’t find much reference to this in the literature (see Maus for some hints and an interesting paper) , but surely people have looked

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Basic math for basic algorithms

June 9, 2017 vy academics, theory

It’s odd that all the descriptions of basic programming operations, such as sorting, rely on pseudo code or complex formal logic. All we are doing

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circularity problems in distributed consensus

August 25, 2016 vy academics, archived, systems, theory

Distributed consensus involves organizing a collection of independent agents – processes or network sites – to agree on some value or sequence of values.  Many

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state equations in practice

August 15, 2016 vy state maps

  When people think of mathematical models of state for programs and other computer systems, it’s natural and conventional to consider state as a map

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State equations

August 4, 2016 vy archived, state maps

Download paper. Unable to display

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Operations and maps on finite sequences

March 11, 2016 vy theory

A lot of what I’m trying to do with mathematical models of computer systems involves operations on finite sequences. Define a “finite sequence of length

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A mathematical basis for understanding software modularity

February 9, 2016 vy state maps

Download.

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Process algebra is based on a misunderstanding of automata theory

January 20, 2016 vy academics, theory

See the current pdf in Arxiv  Robin Milner’s book Communication and Concurrency involves a take on state machines that is fundamentally incorrect. “Now in standard

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