{xy-pic} is a package for typesetting graphs and {commutative-diagrams} using the principle of "logical composition of visual components."

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arrow crossings of curves in xy-pic

I want a diagram like What I can do is \[ \xy (-10,0)*+{ml}="ml"; (10,0)*+{mr}="mr"; (-5,13)*+{t}="t"; (10,-10)*+{b}="b"; ...
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Arrow lines crooked when using xymatrix frame around group of entries

The following does not yield squared arrow lines. The lines connecting the two lower blocks are crooked. Does anyone have any idea how to fix that? Thanks, Dave \usepackage{tikz} ...
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57 views

Composition in a multicategory

I am trying to figure out how to draw composition in a multicategory using same depiction used in Leinster's book "Higher Operads, Higher Categories". Here is what I am trying to draw: I did ...
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39 views

How to make longer arrows from object to itself at xy-pic

I trying to control on the length of arrow from object to itself at xymatrix (xy-pic): for example - This is what I get when I'm typing *+++[o][F.]{a}\ar@(d,r) And this is what I get when I ...
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75 views

Xy-pic: Draw a partial circle segment with the command \cir

I can't figure out if is it possible or not to draw a partial circle segment between to arbitrary direction, with the command \cir? The manual says: *\cir<radius>{<diag> <orient> ...
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109 views

Can I use xymatrix to make a spectral sequence ? meaning how to make the boxes?

Is it possible to use the xymatrix command to make a spectral sequence ? Since xymatrix has all the arrows, what I am really asking is are there commands that will enclose the entries in a lattice of ...
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33 views

tikz-cd versus xy

In certain circumstances, I plan to request for users to make use of tikz-cd package instead of xy package (because the latter performs category code changes of @ \AtBeginDocument). But, because I ...
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33 views

Xymatrix crossed arrow

I would like to reproduce this figure using xymatrix package, i have encounter difficulties in scaling and in drawing an X cross in the down left arrow. Thanks
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38 views

subgroup lattice with xymatic

I am trying to make subgroup lattice pictures, and I figured the easiest way would be with xymatrix (the xypic package.) However the problem is that I can't figure out how to get rid of arrowheads ...
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58 views

\resizebox in xypic gives Dimension too large error

I have a complicated commutative diagram in xypic that I'd like to shrink to fit to the page width. Using \resizebox around the entire expression, I get exactly the result that I want, except that ...