Blackboard Shots

Date-Time	Prefix	Comment	What? A collection of Blackboard Shots (131, right now), mostly taken in my office using a purpose-mounted web camera. Why? Mostly for my own use and for the use of the other people with whom I share blackboard space. And it is public because the easiest way to make something viewable to a number of people is to make it viewable to the whole world. Oh no! If you found your handwriting here and you don't like it, please let me know and the relevant shot(s) will be removed, no questions asked. How? A tripod-mounted Logitech QuickCam Pro 9000 web camera is permanently pointed at my blackboard and connected via USB to this web server. The script bbs.php initiates a capture (using luvcview; hit "s" to shoot and "q" to quit), prompts for a file name prefix and a comment, and runs make. The makefile runs MakeDatabase.php (if necessary) to update the ShotDatabase.php. The latter file is used by index.php, which is this page, and also by show.php, used to display individual shots. The makefile also updates bbs.zip, which contains all the above mentioned scripts as well as common.php, loadnew.php, random.php, the JavaScript actions.js, and the icon bbs.jpg. Exceptions. Some shots are taken by other means and are added manually or using loadnew.php.
080428-120622	08401	HW9 Q1.
080428-110459	08401	P366 Q12 and Q16.
080428-101755	08401	P561 Q18.
080425-160048	08401	P289 Q53.
080425-153014	08401	P379 Q32.
080425-150914	08401	P378 Q24.
080425-143825	08401	2007 Q7 (2).
080425-142418	08401	2007 Q7. (more...)
080423-133821	KAL	Welded knots following Kauffman (2).
080423-133815	KAL	Welded knots following Kauffman. (more...)
080418-170631	Friday	#P
080416-141506	KAL	Quandles and Lie Algebras (3).
080416-141452	KAL	Quandles and Lie Algebras (2).
080416-141439	KAL	Quandles and Lie Algebras. (more...)
080415-113735	LeeP	Quadratic Algebras (2).
080415-103815	LeeP	Quadratic Algebras.
080411-095902	Friday	Mermin's experiment.
080409-140303	KAL	TAut (3).
080409-140247	KAL	TAut (2).
080409-140230	KAL	TAut. (more...)
080407-154716	Zhang	Kassel III.3: Hopf Algebras.
080407-142000	LeeP	Resolution of A_3, formality.
080404-174051	Friday	Polynomials with prime values; splitting extensions.
080402-135635	KAL	Infinitesimal Artin and homotopy (3).
080402-135624	KAL	Infinitesimal Artin and homotopy (2).
080402-135612	KAL	Infinitesimal Artin and homotopy. (more...)
080331-121214	Zhang	Kassel III.2: Bialgebras (3).
080331-115042	Zhang	Kassel III.2: Bialgebras (2).
080331-113921	Zhang	Kassel III.2: Bialgebras.
080331-113101	Zhang	Kassel III.1: Coalgebras.
080326-134857	KAL	Chord diagrams modulo homotopy (3).
080326-134831	KAL	Chord diagrams modulo homotopy (2).
080326-134823	KAL	Chord diagrams modulo homotopy. (more...)
080324-133753	Zhang	Kassel I.6: Graded and Filtered Algebras.
080319-134555	KAL	The infinitesimalization of the Artin representation (5).
080319-134538	KAL	The infinitesimalization of the Artin representation (4).
080319-134530	KAL	The infinitesimalization of the Artin representation (3). (more...)
080317-173748	Burgos	Signs for Property A.
080314-174925	Papakonstantinou	Proof of Radon.
080314-171334	Papakonstantinou	Deleted joins (3).
080314-165812	Papakonstantinou	Deleted joins (2).
080314-164552	Papakonstantinou	Deleted joins.
080314-123029	LeeP	BCH in arrow diagrams. (more...)
080312-134159	KAL	The infinitesimalization of the Artin representation (2).
080312-134147	KAL	The infinitesimalization of the Artin representation. (more...)
080311-141014	Putyra	The new relations.
080311-140156	Putyra	The functor into Vect.
080310-133415	Burgos	Property A.
080307-164557	LeeP	The frozen foot braidor equations and the Kurlin solution.
080307-093138	Friday	Not, nand and error correction.
080306-153403	Zhang	Kassel II.4: Tensor products of algebras.
080305-144135	Putyra	Knot at Lunch talk (4).
080305-144122	Putyra	Knot at Lunch talk (3).
080305-140905	Putyra	Knot at Lunch talk (2).
080305-140854	Putyra	Knot at Lunch talk. (more...)
080304-154327	Halacheva	The construction of purple.
080229-171901	Papakonstantinou	Proof of baby Radon.
080229-171109	Papakonstantinou	Deleted products.
080229-170400	Papakonstantinou	Properties of ind_Z/2.
080229-165636	Papakonstantinou	Z/2 spaces.
080229-162628	Papakonstantinou	Van Kampen-Flores and topological Radon.
080229-153603	Leung	Blobs in arrow diagrams.
080229-120610	LeeP	Acyclicity in Aarrow and Barrow.
080229-102814	Friday	XOR Life and transistors.
080228-145513	Putyra	The 8 versions of Khovanov - Ozsvath - Rasmussen - Szabo homology.
080227-150545	Chu	Proof of Artin's theorem (2). (more...)
080227-150515	Chu	Proof of Artin's theorem. (more...)
080222-115052	LeeP	The frozen foot braidor equations. (more...)
080222-100029	Friday	Euler's theorem.
080222-094417	Friday	Simple linkages (2).
080221-145629	Burgos	Forest expansions.
080221-115556	Zhang	Kassel 2.1: Tensor Products (3)
080221-114426	Zhang	Kassel 2.1: Tensor Products (2)
080221-112622	Zhang	Kassel 2.1: Tensor Products
080219-153645	Halacheva	The Descending Realization.
080219-135641	Archibald	Fermion formulas for cables.
080218-114301	Zhang	Kassel: 1.6 (2).
080218-111608	Zhang	Kassel: 1.6.
080211-113943	Zhang	Kassel: 1.5.
080211-112734	Zhang	Kassel: 1.3, 1.4.
080211-105440	Archibald	Alexander, half-densities and the Berezin integral.
080208-170810	Papakonstantinou	Proof of Lovasz-Kneser.
080208-164720	Papakonstantinou	The Lovasz-Kneser Theorem.
080208-163644	Papakonstantinou	The Hobby-Rice theorem.
080208-162526	Papakonstantinou	General position Salad Bowl.
080207-160009	Archibald	The target planar algebra for Alexander.
080207-150121	Burgos	2
080207-145111	Burgos	A spanning tree expansion of the Jones polynomial.
080206-144329	Godin	4
080206-120027	Godin	3
080206-114022	Godin	2
080206-112111	Godin	A string topology complex for knots, 1.
080205-153936	Halacheva	The map TP from virtual knot diagrams to knots.
080204-153848	Dancso	Non-uniqueness of associators and KTG invariants.
080204-140210	LeeP	A simple group theory proof using expansions.
080201-170104	Papakonstantinou	Rainbow d-tuples and the necklace theorem.
080201-163941	Papakonstantinou	A discrete salad bowl theorem (does it have honest applications?).
080131-151919	Leung	A proof of 6T for gl(N).
080129-162421	Leung	The weight system of the bialgebra associated with a semi-simple Lie algebra.
080128-152738	Dancso	3-pt renormalization of the Kontsevich integral.
080128-115751	Zhang	Affine lines, planes, and algebras.
080125-164947	Papakonstantinou	Geometric proof of Borsuk-Ulam, 2.
080125-162554	Papakonstantinou	Geometric proof of Borsuk-Ulam.
080125-144941	LeeP	Braidors with no linear term.
080125-103323	Friday	Simple linkages.
080124-145708	Burgos	Products of on-diagonal complexes.
080122-161345	Archibald	Fermion formulas for Alexander.
080122-155648	Archibald	Deriving the smoothing formula.
080121-110258	Alekseev	Other quotients.
080121-104944	Alekseev	Homology of tder.
080121-103517	Alekseev	Trees and sder.
080121-094839	Alekseev	Relation with grt.
080121-093327	Alekseev	Definition of div.
080116-162451	Alekseev	Classes of derivations on free Lie algebras.
080111-172610	Papakonstantinou	Proof of Tucker, 2.
080111-171028	Papakonstantinou	Proof of Tucker, 1.
080111-164836	Papakonstantinou	Tucker's Lemma.
080111-163734	Papakonstantinou	A combinatorial Borsuk-Ulam.
080111-160938	Halacheva	More on S and Virtualize.
080108-161737	Archibald	Cont.
080108-155928	Archibald	Alexander for virtuals.
080107-131105	McLellan	Equivariant cohomology and universal properties
071219-170039	LeeP	Trying to understand Hall bases
071218-142600	McLellan	MPR and Manoliu
071218-121134	Halacheva	S and Sinv
071214-182203	Chu	Lyndon words.
071214-144306	LeeP	"functional" application of linear laws.
071213-160320	Burgos	What we want from the Jones poly of alternating tangles.
071213-142750	Leung	The SO(2N) Lie bialgebra weight system.
070117-101500	Dancso	16 definitions of the Alexander polynomial (more).
010105-122901	Kauffman	Welded knots in Siegen. (more...)